./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30672bd579b7f25ffa685cb80d8a419cb542781c19afe0226ba5d9d3cf26984c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:05:28,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:05:28,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 07:05:28,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:05:28,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:05:28,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:05:28,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:05:28,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:05:28,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:05:28,177 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:05:28,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:05:28,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:05:28,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:05:28,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:05:28,180 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:05:28,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:05:28,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:05:28,182 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:05:28,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:05:28,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:05:28,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:05:28,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:05:28,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:05:28,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:05:28,185 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 07:05:28,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:05:28,186 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:05:28,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:05:28,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:05:28,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:05:28,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:05:28,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:05:28,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:05:28,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:05:28,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:05:28,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:05:28,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:05:28,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:05:28,190 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30672bd579b7f25ffa685cb80d8a419cb542781c19afe0226ba5d9d3cf26984c [2023-11-29 07:05:28,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:05:28,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:05:28,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:05:28,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:05:28,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:05:28,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound100.c [2023-11-29 07:05:31,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:05:31,410 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:05:31,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound100.c [2023-11-29 07:05:31,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/data/f75ed9ab8/091ad269364845efb70bb333b6b938d5/FLAG62bd57a37 [2023-11-29 07:05:31,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/data/f75ed9ab8/091ad269364845efb70bb333b6b938d5 [2023-11-29 07:05:31,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:05:31,436 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:05:31,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:05:31,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:05:31,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:05:31,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4438b1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31, skipping insertion in model container [2023-11-29 07:05:31,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:05:31,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:05:31,616 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:05:31,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:05:31,647 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:05:31,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31 WrapperNode [2023-11-29 07:05:31,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:05:31,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:05:31,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:05:31,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:05:31,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,690 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-11-29 07:05:31,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:05:31,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:05:31,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:05:31,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:05:31,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,715 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 07:05:31,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:05:31,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:05:31,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:05:31,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:05:31,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (1/1) ... [2023-11-29 07:05:31,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:05:31,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:31,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:05:31,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:05:31,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:05:31,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 07:05:31,800 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 07:05:31,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 07:05:31,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:05:31,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:05:31,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 07:05:31,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 07:05:31,864 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:05:31,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:05:32,277 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:05:32,305 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:05:32,305 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 07:05:32,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:32 BoogieIcfgContainer [2023-11-29 07:05:32,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:05:32,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:05:32,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:05:32,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:05:32,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:05:31" (1/3) ... [2023-11-29 07:05:32,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30660dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:05:32, skipping insertion in model container [2023-11-29 07:05:32,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:31" (2/3) ... [2023-11-29 07:05:32,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30660dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:05:32, skipping insertion in model container [2023-11-29 07:05:32,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:32" (3/3) ... [2023-11-29 07:05:32,313 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_unwindbound100.c [2023-11-29 07:05:32,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:05:32,328 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2023-11-29 07:05:32,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:05:32,380 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7cad7050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:05:32,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-11-29 07:05:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:05:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 07:05:32,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:32,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:32,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:32,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:32,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1933443539, now seen corresponding path program 1 times [2023-11-29 07:05:32,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:32,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308633262] [2023-11-29 07:05:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:32,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:32,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:32,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308633262] [2023-11-29 07:05:32,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 07:05:32,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079124503] [2023-11-29 07:05:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:32,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:32,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:32,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:05:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:32,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 07:05:32,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 07:05:32,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:32,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079124503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:32,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:32,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:05:32,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787700988] [2023-11-29 07:05:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:32,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:05:32,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:05:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:05:32,662 INFO L87 Difference]: Start difference. First operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:05:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:32,701 INFO L93 Difference]: Finished difference Result 327 states and 367 transitions. [2023-11-29 07:05:32,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:05:32,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 07:05:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:32,712 INFO L225 Difference]: With dead ends: 327 [2023-11-29 07:05:32,712 INFO L226 Difference]: Without dead ends: 161 [2023-11-29 07:05:32,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:05:32,719 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:32,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-29 07:05:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-29 07:05:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 83 states have (on average 1.8433734939759037) internal successors, (153), 150 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:05:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2023-11-29 07:05:32,765 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 13 [2023-11-29 07:05:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:32,766 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2023-11-29 07:05:32,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:05:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2023-11-29 07:05:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 07:05:32,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:32,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:32,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:32,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 07:05:32,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:32,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1970343789, now seen corresponding path program 1 times [2023-11-29 07:05:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:32,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214616709] [2023-11-29 07:05:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:32,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:32,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:32,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [400121974] [2023-11-29 07:05:32,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:32,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:32,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:32,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:33,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:05:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:33,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:05:33,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:33,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 07:05:33,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:33,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:33,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214616709] [2023-11-29 07:05:33,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:33,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400121974] [2023-11-29 07:05:33,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400121974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:33,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:33,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:05:33,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776905528] [2023-11-29 07:05:33,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:33,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:33,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:33,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:33,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:33,162 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:05:33,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:33,445 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2023-11-29 07:05:33,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:33,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-11-29 07:05:33,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:33,448 INFO L225 Difference]: With dead ends: 161 [2023-11-29 07:05:33,449 INFO L226 Difference]: Without dead ends: 159 [2023-11-29 07:05:33,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:05:33,451 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 431 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:33,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 248 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:05:33,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-29 07:05:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-29 07:05:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 83 states have (on average 1.819277108433735) internal successors, (151), 148 states have internal predecessors, (151), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:05:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2023-11-29 07:05:33,468 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 13 [2023-11-29 07:05:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:33,470 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2023-11-29 07:05:33,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:05:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2023-11-29 07:05:33,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 07:05:33,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:33,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:33,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:05:33,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:33,677 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:33,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash 951115354, now seen corresponding path program 1 times [2023-11-29 07:05:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858070021] [2023-11-29 07:05:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:33,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:33,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154841485] [2023-11-29 07:05:33,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:33,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:33,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:33,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:33,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:05:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:33,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:33,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 07:05:33,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:33,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:33,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858070021] [2023-11-29 07:05:33,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:33,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154841485] [2023-11-29 07:05:33,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154841485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:33,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:33,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:05:33,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744007365] [2023-11-29 07:05:33,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:33,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:05:33,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:33,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:05:33,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:05:33,797 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:05:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:34,013 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2023-11-29 07:05:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:05:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 07:05:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:34,016 INFO L225 Difference]: With dead ends: 159 [2023-11-29 07:05:34,017 INFO L226 Difference]: Without dead ends: 158 [2023-11-29 07:05:34,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:34,018 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 143 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:34,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 262 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:05:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-29 07:05:34,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-29 07:05:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 83 states have (on average 1.8072289156626506) internal successors, (150), 147 states have internal predecessors, (150), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 07:05:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2023-11-29 07:05:34,032 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 14 [2023-11-29 07:05:34,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:34,033 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2023-11-29 07:05:34,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:05:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2023-11-29 07:05:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 07:05:34,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:34,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:34,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 07:05:34,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,234 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:34,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1564000962, now seen corresponding path program 1 times [2023-11-29 07:05:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734470436] [2023-11-29 07:05:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:34,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152761603] [2023-11-29 07:05:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:34,249 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:34,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:05:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:34,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:05:34,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:34,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:34,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:34,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734470436] [2023-11-29 07:05:34,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:34,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152761603] [2023-11-29 07:05:34,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152761603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:34,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:34,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:05:34,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590703805] [2023-11-29 07:05:34,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:34,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:05:34,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:34,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:05:34,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:34,368 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:34,402 INFO L93 Difference]: Finished difference Result 199 states and 210 transitions. [2023-11-29 07:05:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:05:34,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-11-29 07:05:34,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:34,404 INFO L225 Difference]: With dead ends: 199 [2023-11-29 07:05:34,404 INFO L226 Difference]: Without dead ends: 198 [2023-11-29 07:05:34,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:05:34,405 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 42 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:34,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 466 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:34,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-29 07:05:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 174. [2023-11-29 07:05:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.7835051546391754) internal successors, (173), 161 states have internal predecessors, (173), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:05:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 193 transitions. [2023-11-29 07:05:34,422 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 193 transitions. Word has length 28 [2023-11-29 07:05:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:34,422 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 193 transitions. [2023-11-29 07:05:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 193 transitions. [2023-11-29 07:05:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 07:05:34,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:34,424 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:34,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:34,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:34,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1239389620, now seen corresponding path program 1 times [2023-11-29 07:05:34,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:34,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680025375] [2023-11-29 07:05:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:34,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120873777] [2023-11-29 07:05:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:34,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:34,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:05:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:34,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:05:34,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:34,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:34,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:34,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680025375] [2023-11-29 07:05:34,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:34,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120873777] [2023-11-29 07:05:34,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120873777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:34,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:34,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:05:34,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496341858] [2023-11-29 07:05:34,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:34,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:05:34,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:34,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:05:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:34,736 INFO L87 Difference]: Start difference. First operand 174 states and 193 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:34,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:34,767 INFO L93 Difference]: Finished difference Result 204 states and 221 transitions. [2023-11-29 07:05:34,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:05:34,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-11-29 07:05:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:34,770 INFO L225 Difference]: With dead ends: 204 [2023-11-29 07:05:34,770 INFO L226 Difference]: Without dead ends: 174 [2023-11-29 07:05:34,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:05:34,772 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 3 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:34,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 469 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-29 07:05:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-11-29 07:05:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 97 states have (on average 1.7628865979381443) internal successors, (171), 161 states have internal predecessors, (171), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 07:05:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 191 transitions. [2023-11-29 07:05:34,785 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 191 transitions. Word has length 29 [2023-11-29 07:05:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:34,786 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 191 transitions. [2023-11-29 07:05:34,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 191 transitions. [2023-11-29 07:05:34,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 07:05:34,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:34,787 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:34,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:05:34,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:34,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:34,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:34,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1177615479, now seen corresponding path program 1 times [2023-11-29 07:05:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:34,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272272674] [2023-11-29 07:05:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:35,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:35,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [605311138] [2023-11-29 07:05:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:35,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:35,002 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:35,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:05:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:35,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:05:35,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:35,078 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:35,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:35,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272272674] [2023-11-29 07:05:35,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605311138] [2023-11-29 07:05:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605311138] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:35,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:35,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 07:05:35,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544102184] [2023-11-29 07:05:35,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:35,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:35,151 INFO L87 Difference]: Start difference. First operand 174 states and 191 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:35,438 INFO L93 Difference]: Finished difference Result 283 states and 300 transitions. [2023-11-29 07:05:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:05:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-29 07:05:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:35,441 INFO L225 Difference]: With dead ends: 283 [2023-11-29 07:05:35,441 INFO L226 Difference]: Without dead ends: 253 [2023-11-29 07:05:35,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:35,443 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 328 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:35,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 445 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:05:35,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-29 07:05:35,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 212. [2023-11-29 07:05:35,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 133 states have (on average 1.8270676691729324) internal successors, (243), 196 states have internal predecessors, (243), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 07:05:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 269 transitions. [2023-11-29 07:05:35,457 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 269 transitions. Word has length 32 [2023-11-29 07:05:35,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:35,457 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 269 transitions. [2023-11-29 07:05:35,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 269 transitions. [2023-11-29 07:05:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 07:05:35,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:35,459 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:35,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:05:35,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 07:05:35,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:35,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2146343301, now seen corresponding path program 1 times [2023-11-29 07:05:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805078971] [2023-11-29 07:05:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:35,669 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:35,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104287786] [2023-11-29 07:05:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:35,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:35,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:35,671 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:35,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:05:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:35,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:05:35,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:35,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:35,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:35,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805078971] [2023-11-29 07:05:35,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:35,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104287786] [2023-11-29 07:05:35,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104287786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:35,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:35,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:05:35,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623675418] [2023-11-29 07:05:35,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:35,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:05:35,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:35,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:05:35,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:05:35,740 INFO L87 Difference]: Start difference. First operand 212 states and 269 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:35,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:35,790 INFO L93 Difference]: Finished difference Result 212 states and 269 transitions. [2023-11-29 07:05:35,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:05:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2023-11-29 07:05:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:35,793 INFO L225 Difference]: With dead ends: 212 [2023-11-29 07:05:35,794 INFO L226 Difference]: Without dead ends: 210 [2023-11-29 07:05:35,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:35,795 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 166 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:35,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 459 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-29 07:05:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2023-11-29 07:05:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 133 states have (on average 1.8045112781954886) internal successors, (240), 194 states have internal predecessors, (240), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 07:05:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 266 transitions. [2023-11-29 07:05:35,810 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 266 transitions. Word has length 33 [2023-11-29 07:05:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:35,810 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 266 transitions. [2023-11-29 07:05:35,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 266 transitions. [2023-11-29 07:05:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 07:05:35,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:35,812 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:35,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:05:36,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:36,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2112132818, now seen corresponding path program 1 times [2023-11-29 07:05:36,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:36,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96529213] [2023-11-29 07:05:36,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:36,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:36,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446655244] [2023-11-29 07:05:36,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:36,024 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:36,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 07:05:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:36,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:05:36,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:36,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:36,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96529213] [2023-11-29 07:05:36,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:36,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446655244] [2023-11-29 07:05:36,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446655244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:36,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:36,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:05:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371506895] [2023-11-29 07:05:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:36,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:05:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:05:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:05:36,089 INFO L87 Difference]: Start difference. First operand 210 states and 266 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:36,153 INFO L93 Difference]: Finished difference Result 248 states and 306 transitions. [2023-11-29 07:05:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2023-11-29 07:05:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:36,156 INFO L225 Difference]: With dead ends: 248 [2023-11-29 07:05:36,156 INFO L226 Difference]: Without dead ends: 247 [2023-11-29 07:05:36,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:36,157 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 53 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:36,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 636 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-29 07:05:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 227. [2023-11-29 07:05:36,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 148 states have (on average 1.7635135135135136) internal successors, (261), 210 states have internal predecessors, (261), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:05:36,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 289 transitions. [2023-11-29 07:05:36,176 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 289 transitions. Word has length 34 [2023-11-29 07:05:36,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:36,177 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 289 transitions. [2023-11-29 07:05:36,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:36,177 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 289 transitions. [2023-11-29 07:05:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 07:05:36,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:36,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:36,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 07:05:36,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,378 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:36,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:36,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1759895408, now seen corresponding path program 1 times [2023-11-29 07:05:36,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:36,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729665718] [2023-11-29 07:05:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:36,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:36,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [933820770] [2023-11-29 07:05:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:36,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:36,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:36,390 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:36,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 07:05:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:36,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:05:36,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:36,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729665718] [2023-11-29 07:05:36,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933820770] [2023-11-29 07:05:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933820770] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:36,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:36,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:05:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265676061] [2023-11-29 07:05:36,618 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:36,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:36,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:36,620 INFO L87 Difference]: Start difference. First operand 227 states and 289 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:37,011 INFO L93 Difference]: Finished difference Result 268 states and 290 transitions. [2023-11-29 07:05:37,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:37,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-11-29 07:05:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:37,013 INFO L225 Difference]: With dead ends: 268 [2023-11-29 07:05:37,013 INFO L226 Difference]: Without dead ends: 266 [2023-11-29 07:05:37,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:37,014 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 322 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:37,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 414 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:05:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-11-29 07:05:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 227. [2023-11-29 07:05:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 148 states have (on average 1.75) internal successors, (259), 210 states have internal predecessors, (259), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 07:05:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2023-11-29 07:05:37,026 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 36 [2023-11-29 07:05:37,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:37,027 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2023-11-29 07:05:37,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2023-11-29 07:05:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 07:05:37,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:37,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:37,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 07:05:37,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:37,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:37,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1277817118, now seen corresponding path program 1 times [2023-11-29 07:05:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:37,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974979255] [2023-11-29 07:05:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:37,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:37,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918224568] [2023-11-29 07:05:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:37,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:37,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:37,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:37,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 07:05:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:37,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:05:37,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:37,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:37,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974979255] [2023-11-29 07:05:37,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918224568] [2023-11-29 07:05:37,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918224568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:37,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:05:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208399866] [2023-11-29 07:05:37,455 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:37,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:37,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:37,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:37,457 INFO L87 Difference]: Start difference. First operand 227 states and 287 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:37,834 INFO L93 Difference]: Finished difference Result 349 states and 378 transitions. [2023-11-29 07:05:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-29 07:05:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:37,838 INFO L225 Difference]: With dead ends: 349 [2023-11-29 07:05:37,838 INFO L226 Difference]: Without dead ends: 347 [2023-11-29 07:05:37,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:37,839 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 401 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:37,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 456 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:05:37,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-29 07:05:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 273. [2023-11-29 07:05:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7789473684210526) internal successors, (338), 252 states have internal predecessors, (338), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:05:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 374 transitions. [2023-11-29 07:05:37,862 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 374 transitions. Word has length 37 [2023-11-29 07:05:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:37,862 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 374 transitions. [2023-11-29 07:05:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 374 transitions. [2023-11-29 07:05:37,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 07:05:37,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:37,864 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:37,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:38,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 07:05:38,069 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:38,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1277816128, now seen corresponding path program 1 times [2023-11-29 07:05:38,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880908824] [2023-11-29 07:05:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:38,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:38,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:38,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294415160] [2023-11-29 07:05:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:38,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:38,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:38,080 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:38,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 07:05:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:38,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:05:38,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:38,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:38,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:38,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880908824] [2023-11-29 07:05:38,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:38,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294415160] [2023-11-29 07:05:38,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294415160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:38,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:38,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:05:38,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834224906] [2023-11-29 07:05:38,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:38,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:05:38,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:38,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:05:38,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:05:38,195 INFO L87 Difference]: Start difference. First operand 273 states and 374 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:38,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:38,251 INFO L93 Difference]: Finished difference Result 429 states and 543 transitions. [2023-11-29 07:05:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:38,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2023-11-29 07:05:38,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:38,253 INFO L225 Difference]: With dead ends: 429 [2023-11-29 07:05:38,254 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 07:05:38,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:38,255 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 5 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:38,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 753 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:05:38,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 07:05:38,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-11-29 07:05:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7736842105263158) internal successors, (337), 252 states have internal predecessors, (337), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:05:38,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 373 transitions. [2023-11-29 07:05:38,270 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 373 transitions. Word has length 37 [2023-11-29 07:05:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:38,271 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 373 transitions. [2023-11-29 07:05:38,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:05:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 373 transitions. [2023-11-29 07:05:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 07:05:38,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:38,272 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:38,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 07:05:38,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 07:05:38,472 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:38,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash -957624910, now seen corresponding path program 1 times [2023-11-29 07:05:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:38,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948304451] [2023-11-29 07:05:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:38,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:38,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:38,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651571497] [2023-11-29 07:05:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:38,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:38,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:38,481 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:38,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 07:05:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:38,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:05:38,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:38,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:38,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:38,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948304451] [2023-11-29 07:05:38,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:38,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651571497] [2023-11-29 07:05:38,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651571497] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:38,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:38,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:05:38,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518889781] [2023-11-29 07:05:38,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:38,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:05:38,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:05:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:05:38,776 INFO L87 Difference]: Start difference. First operand 273 states and 373 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:39,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:39,512 INFO L93 Difference]: Finished difference Result 420 states and 449 transitions. [2023-11-29 07:05:39,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:05:39,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2023-11-29 07:05:39,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:39,516 INFO L225 Difference]: With dead ends: 420 [2023-11-29 07:05:39,516 INFO L226 Difference]: Without dead ends: 419 [2023-11-29 07:05:39,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:05:39,517 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 617 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:39,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 626 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:05:39,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-29 07:05:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 273. [2023-11-29 07:05:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.768421052631579) internal successors, (336), 252 states have internal predecessors, (336), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:05:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 372 transitions. [2023-11-29 07:05:39,540 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 372 transitions. Word has length 38 [2023-11-29 07:05:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:39,541 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 372 transitions. [2023-11-29 07:05:39,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 07:05:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 372 transitions. [2023-11-29 07:05:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 07:05:39,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:39,542 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:39,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 07:05:39,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 07:05:39,747 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:39,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash 378398948, now seen corresponding path program 1 times [2023-11-29 07:05:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:39,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136909982] [2023-11-29 07:05:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:39,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:39,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136445230] [2023-11-29 07:05:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:39,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:39,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:39,757 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:39,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 07:05:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:39,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:05:39,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:39,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:40,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136909982] [2023-11-29 07:05:40,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:40,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136445230] [2023-11-29 07:05:40,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136445230] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:40,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:05:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68393166] [2023-11-29 07:05:40,041 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:40,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:05:40,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:05:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:40,043 INFO L87 Difference]: Start difference. First operand 273 states and 372 transitions. Second operand has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:42,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:42,067 INFO L93 Difference]: Finished difference Result 347 states and 374 transitions. [2023-11-29 07:05:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-29 07:05:42,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:42,070 INFO L225 Difference]: With dead ends: 347 [2023-11-29 07:05:42,070 INFO L226 Difference]: Without dead ends: 345 [2023-11-29 07:05:42,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:05:42,071 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 533 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:42,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 315 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:05:42,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-29 07:05:42,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 273. [2023-11-29 07:05:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 190 states have (on average 1.7578947368421052) internal successors, (334), 252 states have internal predecessors, (334), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:05:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 370 transitions. [2023-11-29 07:05:42,087 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 370 transitions. Word has length 39 [2023-11-29 07:05:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:42,087 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 370 transitions. [2023-11-29 07:05:42,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 07:05:42,088 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 370 transitions. [2023-11-29 07:05:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 07:05:42,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:42,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:42,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 07:05:42,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 07:05:42,289 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:42,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1317127471, now seen corresponding path program 1 times [2023-11-29 07:05:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731439787] [2023-11-29 07:05:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:42,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:42,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945049414] [2023-11-29 07:05:42,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:42,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:42,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:42,300 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:42,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 07:05:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:42,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:42,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:42,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:42,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:42,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731439787] [2023-11-29 07:05:42,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:42,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945049414] [2023-11-29 07:05:42,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945049414] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:42,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:42,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 07:05:42,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441499060] [2023-11-29 07:05:42,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:42,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:05:42,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:05:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:42,632 INFO L87 Difference]: Start difference. First operand 273 states and 370 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:05:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:45,157 INFO L93 Difference]: Finished difference Result 339 states and 402 transitions. [2023-11-29 07:05:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:45,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 45 [2023-11-29 07:05:45,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:45,160 INFO L225 Difference]: With dead ends: 339 [2023-11-29 07:05:45,160 INFO L226 Difference]: Without dead ends: 338 [2023-11-29 07:05:45,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:45,160 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 482 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:45,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 363 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 07:05:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-29 07:05:45,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 280. [2023-11-29 07:05:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 196 states have (on average 1.75) internal successors, (343), 258 states have internal predecessors, (343), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2023-11-29 07:05:45,172 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 45 [2023-11-29 07:05:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:45,172 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2023-11-29 07:05:45,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:05:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2023-11-29 07:05:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 07:05:45,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:45,173 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:45,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:45,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 07:05:45,374 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:45,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2118721450, now seen corresponding path program 1 times [2023-11-29 07:05:45,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:45,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922804640] [2023-11-29 07:05:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:45,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:45,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:45,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109840681] [2023-11-29 07:05:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:45,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:45,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:45,383 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:45,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 07:05:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:45,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:45,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:45,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922804640] [2023-11-29 07:05:45,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:45,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109840681] [2023-11-29 07:05:45,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109840681] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:45,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:45,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 07:05:45,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822458895] [2023-11-29 07:05:45,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:45,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:05:45,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:05:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:45,749 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:05:47,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:47,648 INFO L93 Difference]: Finished difference Result 340 states and 401 transitions. [2023-11-29 07:05:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 46 [2023-11-29 07:05:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:47,650 INFO L225 Difference]: With dead ends: 340 [2023-11-29 07:05:47,650 INFO L226 Difference]: Without dead ends: 339 [2023-11-29 07:05:47,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:05:47,651 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 656 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:47,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 453 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:05:47,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-29 07:05:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 281. [2023-11-29 07:05:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 197 states have (on average 1.736040609137056) internal successors, (342), 259 states have internal predecessors, (342), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 380 transitions. [2023-11-29 07:05:47,663 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 380 transitions. Word has length 46 [2023-11-29 07:05:47,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:47,663 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 380 transitions. [2023-11-29 07:05:47,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:05:47,664 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 380 transitions. [2023-11-29 07:05:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 07:05:47,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:47,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:47,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 07:05:47,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 07:05:47,870 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:47,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:47,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1255855603, now seen corresponding path program 1 times [2023-11-29 07:05:47,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:47,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997171823] [2023-11-29 07:05:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:47,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:47,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59216540] [2023-11-29 07:05:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:47,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:47,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:47,879 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:47,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 07:05:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:47,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:47,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:48,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:48,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997171823] [2023-11-29 07:05:48,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:48,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59216540] [2023-11-29 07:05:48,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59216540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:48,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:48,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 07:05:48,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404872791] [2023-11-29 07:05:48,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:48,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:05:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:05:48,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:48,127 INFO L87 Difference]: Start difference. First operand 281 states and 380 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:05:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:49,452 INFO L93 Difference]: Finished difference Result 324 states and 384 transitions. [2023-11-29 07:05:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2023-11-29 07:05:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:49,454 INFO L225 Difference]: With dead ends: 324 [2023-11-29 07:05:49,454 INFO L226 Difference]: Without dead ends: 323 [2023-11-29 07:05:49,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:05:49,455 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 431 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:49,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 492 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 07:05:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-29 07:05:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 282. [2023-11-29 07:05:49,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.7222222222222223) internal successors, (341), 260 states have internal predecessors, (341), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 379 transitions. [2023-11-29 07:05:49,472 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 379 transitions. Word has length 47 [2023-11-29 07:05:49,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:49,472 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 379 transitions. [2023-11-29 07:05:49,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:05:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 379 transitions. [2023-11-29 07:05:49,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 07:05:49,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:49,473 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:49,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 07:05:49,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 07:05:49,675 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:49,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 276818124, now seen corresponding path program 1 times [2023-11-29 07:05:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825925705] [2023-11-29 07:05:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:49,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:49,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:49,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334181288] [2023-11-29 07:05:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:49,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:49,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:49,683 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:49,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 07:05:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:49,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:05:49,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:05:49,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825925705] [2023-11-29 07:05:49,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334181288] [2023-11-29 07:05:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334181288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:49,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:49,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:05:49,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058796152] [2023-11-29 07:05:49,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:49,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:05:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:49,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:05:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:49,805 INFO L87 Difference]: Start difference. First operand 282 states and 379 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 07:05:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:49,948 INFO L93 Difference]: Finished difference Result 318 states and 380 transitions. [2023-11-29 07:05:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:05:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-29 07:05:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:49,951 INFO L225 Difference]: With dead ends: 318 [2023-11-29 07:05:49,951 INFO L226 Difference]: Without dead ends: 317 [2023-11-29 07:05:49,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:49,954 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 207 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:49,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 226 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:05:49,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-29 07:05:49,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 282. [2023-11-29 07:05:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.7121212121212122) internal successors, (339), 260 states have internal predecessors, (339), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2023-11-29 07:05:49,974 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 48 [2023-11-29 07:05:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:49,974 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2023-11-29 07:05:49,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 07:05:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2023-11-29 07:05:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 07:05:49,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:49,975 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:49,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:50,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 07:05:50,176 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:50,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:50,177 INFO L85 PathProgramCache]: Analyzing trace with hash -8572651, now seen corresponding path program 1 times [2023-11-29 07:05:50,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:50,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474106742] [2023-11-29 07:05:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:50,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:50,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152716704] [2023-11-29 07:05:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:50,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:50,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:50,186 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:50,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 07:05:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:50,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:05:50,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:50,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474106742] [2023-11-29 07:05:50,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152716704] [2023-11-29 07:05:50,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152716704] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:50,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:50,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:05:50,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153491656] [2023-11-29 07:05:50,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:50,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:05:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:05:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:05:50,463 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 07:05:50,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:50,728 INFO L93 Difference]: Finished difference Result 317 states and 378 transitions. [2023-11-29 07:05:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:05:50,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2023-11-29 07:05:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:50,730 INFO L225 Difference]: With dead ends: 317 [2023-11-29 07:05:50,730 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 07:05:50,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:05:50,731 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 207 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:50,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 406 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:05:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 07:05:50,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 282. [2023-11-29 07:05:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.702020202020202) internal successors, (337), 260 states have internal predecessors, (337), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 375 transitions. [2023-11-29 07:05:50,745 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 375 transitions. Word has length 49 [2023-11-29 07:05:50,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:50,745 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 375 transitions. [2023-11-29 07:05:50,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 07:05:50,746 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 375 transitions. [2023-11-29 07:05:50,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 07:05:50,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:50,746 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:50,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 07:05:50,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 07:05:50,947 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:50,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash -265752082, now seen corresponding path program 1 times [2023-11-29 07:05:50,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:50,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862735173] [2023-11-29 07:05:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:50,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:50,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:50,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772711853] [2023-11-29 07:05:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:50,955 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:50,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 07:05:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:50,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:05:50,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 07:05:51,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:51,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:51,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862735173] [2023-11-29 07:05:51,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:51,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772711853] [2023-11-29 07:05:51,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772711853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:51,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:51,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:05:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339217970] [2023-11-29 07:05:51,328 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:51,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:05:51,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:51,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:05:51,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:51,330 INFO L87 Difference]: Start difference. First operand 282 states and 375 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 07:05:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:53,047 INFO L93 Difference]: Finished difference Result 324 states and 384 transitions. [2023-11-29 07:05:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:53,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-11-29 07:05:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:53,049 INFO L225 Difference]: With dead ends: 324 [2023-11-29 07:05:53,049 INFO L226 Difference]: Without dead ends: 323 [2023-11-29 07:05:53,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:05:53,050 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 362 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:53,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 428 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:05:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-29 07:05:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 282. [2023-11-29 07:05:53,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6919191919191918) internal successors, (335), 260 states have internal predecessors, (335), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 373 transitions. [2023-11-29 07:05:53,063 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 373 transitions. Word has length 50 [2023-11-29 07:05:53,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:53,063 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 373 transitions. [2023-11-29 07:05:53,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 07:05:53,064 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 373 transitions. [2023-11-29 07:05:53,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 07:05:53,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:53,064 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:53,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 07:05:53,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:53,265 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:53,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash -682195484, now seen corresponding path program 1 times [2023-11-29 07:05:53,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28874671] [2023-11-29 07:05:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:53,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:53,272 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:53,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222994676] [2023-11-29 07:05:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:53,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:53,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:53,274 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:53,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 07:05:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:53,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:53,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:05:53,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:53,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:53,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28874671] [2023-11-29 07:05:53,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:53,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222994676] [2023-11-29 07:05:53,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222994676] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:53,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:53,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:05:53,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314104290] [2023-11-29 07:05:53,576 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:53,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:53,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:53,578 INFO L87 Difference]: Start difference. First operand 282 states and 373 transitions. Second operand has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:05:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:54,728 INFO L93 Difference]: Finished difference Result 321 states and 382 transitions. [2023-11-29 07:05:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:54,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2023-11-29 07:05:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:54,730 INFO L225 Difference]: With dead ends: 321 [2023-11-29 07:05:54,730 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 07:05:54,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:54,730 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 279 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:54,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 357 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:05:54,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 07:05:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2023-11-29 07:05:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6717171717171717) internal successors, (331), 260 states have internal predecessors, (331), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 369 transitions. [2023-11-29 07:05:54,742 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 369 transitions. Word has length 56 [2023-11-29 07:05:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:54,742 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 369 transitions. [2023-11-29 07:05:54,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:05:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 369 transitions. [2023-11-29 07:05:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 07:05:54,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:54,743 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:54,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 07:05:54,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2023-11-29 07:05:54,943 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:54,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:54,944 INFO L85 PathProgramCache]: Analyzing trace with hash 326776580, now seen corresponding path program 1 times [2023-11-29 07:05:54,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040319866] [2023-11-29 07:05:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:54,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:54,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:54,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570509667] [2023-11-29 07:05:54,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:54,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:54,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:54,951 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:54,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 07:05:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:55,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:55,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:55,150 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:05:55,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:55,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:55,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040319866] [2023-11-29 07:05:55,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:55,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570509667] [2023-11-29 07:05:55,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570509667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:05:55,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:05:55,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:05:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303002260] [2023-11-29 07:05:55,361 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:55,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:05:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:05:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:55,362 INFO L87 Difference]: Start difference. First operand 282 states and 369 transitions. Second operand has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:05:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:56,417 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2023-11-29 07:05:56,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:05:56,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2023-11-29 07:05:56,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:56,420 INFO L225 Difference]: With dead ends: 321 [2023-11-29 07:05:56,420 INFO L226 Difference]: Without dead ends: 319 [2023-11-29 07:05:56,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:05:56,421 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 338 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:56,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 351 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:05:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-29 07:05:56,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2023-11-29 07:05:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 198 states have (on average 1.6515151515151516) internal successors, (327), 260 states have internal predecessors, (327), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 07:05:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 365 transitions. [2023-11-29 07:05:56,433 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 365 transitions. Word has length 57 [2023-11-29 07:05:56,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:56,433 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 365 transitions. [2023-11-29 07:05:56,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:05:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 365 transitions. [2023-11-29 07:05:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 07:05:56,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:56,434 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:56,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 07:05:56,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:56,634 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:56,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1540139494, now seen corresponding path program 1 times [2023-11-29 07:05:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22926929] [2023-11-29 07:05:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:56,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:56,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1712629825] [2023-11-29 07:05:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:56,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:56,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:56,643 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:56,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 07:05:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:56,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:05:56,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:05:56,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:05:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:05:56,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:56,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22926929] [2023-11-29 07:05:56,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:56,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712629825] [2023-11-29 07:05:56,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712629825] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:05:56,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:05:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 07:05:56,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694530019] [2023-11-29 07:05:56,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:05:56,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:05:56,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:56,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:05:56,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:05:56,937 INFO L87 Difference]: Start difference. First operand 282 states and 365 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 07:05:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:58,859 INFO L93 Difference]: Finished difference Result 359 states and 413 transitions. [2023-11-29 07:05:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:05:58,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 58 [2023-11-29 07:05:58,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:58,861 INFO L225 Difference]: With dead ends: 359 [2023-11-29 07:05:58,861 INFO L226 Difference]: Without dead ends: 357 [2023-11-29 07:05:58,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:05:58,862 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 592 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:58,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 491 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 07:05:58,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-11-29 07:05:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 288. [2023-11-29 07:05:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 204 states have (on average 1.6323529411764706) internal successors, (333), 265 states have internal predecessors, (333), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:05:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 373 transitions. [2023-11-29 07:05:58,880 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 373 transitions. Word has length 58 [2023-11-29 07:05:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:58,880 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 373 transitions. [2023-11-29 07:05:58,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 07:05:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 373 transitions. [2023-11-29 07:05:58,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 07:05:58,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:58,881 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:58,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 07:05:59,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:59,082 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:59,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:59,082 INFO L85 PathProgramCache]: Analyzing trace with hash 499684166, now seen corresponding path program 1 times [2023-11-29 07:05:59,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:59,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649086002] [2023-11-29 07:05:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:59,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:59,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810250362] [2023-11-29 07:05:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:59,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:59,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:59,090 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:59,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 07:05:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:59,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:05:59,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:05:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 07:05:59,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:05:59,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:05:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649086002] [2023-11-29 07:05:59,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:05:59,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810250362] [2023-11-29 07:05:59,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810250362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:05:59,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:05:59,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:05:59,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504826618] [2023-11-29 07:05:59,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:05:59,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:05:59,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:05:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:05:59,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:59,223 INFO L87 Difference]: Start difference. First operand 288 states and 373 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 07:05:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:05:59,671 INFO L93 Difference]: Finished difference Result 331 states and 390 transitions. [2023-11-29 07:05:59,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:05:59,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2023-11-29 07:05:59,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:05:59,674 INFO L225 Difference]: With dead ends: 331 [2023-11-29 07:05:59,674 INFO L226 Difference]: Without dead ends: 329 [2023-11-29 07:05:59,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:05:59,675 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 276 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:05:59,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 167 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:05:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-29 07:05:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 288. [2023-11-29 07:05:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 204 states have (on average 1.6127450980392157) internal successors, (329), 265 states have internal predecessors, (329), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:05:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 369 transitions. [2023-11-29 07:05:59,686 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 369 transitions. Word has length 59 [2023-11-29 07:05:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:05:59,687 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 369 transitions. [2023-11-29 07:05:59,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 07:05:59,687 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 369 transitions. [2023-11-29 07:05:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 07:05:59,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:05:59,687 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:05:59,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 07:05:59,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:59,888 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:05:59,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:05:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1689659928, now seen corresponding path program 1 times [2023-11-29 07:05:59,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:05:59,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313323399] [2023-11-29 07:05:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:59,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:05:59,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:05:59,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519436554] [2023-11-29 07:05:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:05:59,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:05:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:05:59,895 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:05:59,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 07:05:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:05:59,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:05:59,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 07:06:00,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:00,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:00,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313323399] [2023-11-29 07:06:00,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:00,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519436554] [2023-11-29 07:06:00,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519436554] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:00,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:00,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:06:00,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888530343] [2023-11-29 07:06:00,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:00,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:06:00,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:00,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:06:00,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:06:00,141 INFO L87 Difference]: Start difference. First operand 288 states and 369 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 07:06:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:01,115 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2023-11-29 07:06:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:06:01,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2023-11-29 07:06:01,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:01,117 INFO L225 Difference]: With dead ends: 321 [2023-11-29 07:06:01,118 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 07:06:01,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:06:01,118 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 194 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:01,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 299 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:06:01,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 07:06:01,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 291. [2023-11-29 07:06:01,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5748792270531402) internal successors, (326), 268 states have internal predecessors, (326), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 366 transitions. [2023-11-29 07:06:01,131 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 366 transitions. Word has length 60 [2023-11-29 07:06:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:01,131 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 366 transitions. [2023-11-29 07:06:01,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 07:06:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 366 transitions. [2023-11-29 07:06:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 07:06:01,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:01,132 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:01,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 07:06:01,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 07:06:01,333 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:01,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:01,333 INFO L85 PathProgramCache]: Analyzing trace with hash -839850104, now seen corresponding path program 1 times [2023-11-29 07:06:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:01,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330268562] [2023-11-29 07:06:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:01,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:01,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:01,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434194935] [2023-11-29 07:06:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:01,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:01,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:01,340 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:01,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 07:06:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:01,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:06:01,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 07:06:01,650 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:02,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:02,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330268562] [2023-11-29 07:06:02,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:02,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434194935] [2023-11-29 07:06:02,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434194935] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:02,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:02,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:06:02,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729934927] [2023-11-29 07:06:02,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:02,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:06:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:02,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:06:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:06:02,616 INFO L87 Difference]: Start difference. First operand 291 states and 366 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:06:05,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:05,509 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-11-29 07:06:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:06:05,510 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2023-11-29 07:06:05,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:05,511 INFO L225 Difference]: With dead ends: 316 [2023-11-29 07:06:05,512 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 07:06:05,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:06:05,513 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 396 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:05,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 529 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 07:06:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 07:06:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 291. [2023-11-29 07:06:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.565217391304348) internal successors, (324), 268 states have internal predecessors, (324), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 364 transitions. [2023-11-29 07:06:05,530 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 364 transitions. Word has length 61 [2023-11-29 07:06:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:05,531 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 364 transitions. [2023-11-29 07:06:05,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 07:06:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 364 transitions. [2023-11-29 07:06:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 07:06:05,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:05,532 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:05,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:05,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:05,732 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:05,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:05,733 INFO L85 PathProgramCache]: Analyzing trace with hash 29219433, now seen corresponding path program 1 times [2023-11-29 07:06:05,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710352940] [2023-11-29 07:06:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:05,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:05,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:05,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818682196] [2023-11-29 07:06:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:05,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:05,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:05,741 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 07:06:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:05,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:06:05,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 07:06:05,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:05,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710352940] [2023-11-29 07:06:05,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818682196] [2023-11-29 07:06:05,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818682196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:05,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:05,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351640246] [2023-11-29 07:06:05,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:05,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:05,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:05,918 INFO L87 Difference]: Start difference. First operand 291 states and 364 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:06,016 INFO L93 Difference]: Finished difference Result 323 states and 376 transitions. [2023-11-29 07:06:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:06,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2023-11-29 07:06:06,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:06,018 INFO L225 Difference]: With dead ends: 323 [2023-11-29 07:06:06,019 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 07:06:06,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:06,019 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 116 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:06,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 234 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:06,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 07:06:06,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 291. [2023-11-29 07:06:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5555555555555556) internal successors, (322), 268 states have internal predecessors, (322), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 362 transitions. [2023-11-29 07:06:06,032 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 362 transitions. Word has length 69 [2023-11-29 07:06:06,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:06,033 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 362 transitions. [2023-11-29 07:06:06,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:06,033 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 362 transitions. [2023-11-29 07:06:06,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 07:06:06,034 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:06,034 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:06,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 07:06:06,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 07:06:06,239 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:06,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 905802544, now seen corresponding path program 1 times [2023-11-29 07:06:06,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:06,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964863231] [2023-11-29 07:06:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:06,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:06,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:06,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410044864] [2023-11-29 07:06:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:06,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:06,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:06,246 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:06,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 07:06:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:06,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:06:06,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 07:06:06,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:06,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964863231] [2023-11-29 07:06:06,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:06,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410044864] [2023-11-29 07:06:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410044864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:06,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:06,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:06:06,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629019394] [2023-11-29 07:06:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:06,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:06:06,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:06,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:06:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:06:06,414 INFO L87 Difference]: Start difference. First operand 291 states and 362 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 07:06:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:06,589 INFO L93 Difference]: Finished difference Result 322 states and 374 transitions. [2023-11-29 07:06:06,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:06:06,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2023-11-29 07:06:06,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:06,591 INFO L225 Difference]: With dead ends: 322 [2023-11-29 07:06:06,591 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 07:06:06,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:06:06,591 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 58 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:06,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 561 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:06:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 07:06:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 291. [2023-11-29 07:06:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5458937198067633) internal successors, (320), 268 states have internal predecessors, (320), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 360 transitions. [2023-11-29 07:06:06,607 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 360 transitions. Word has length 70 [2023-11-29 07:06:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:06,608 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 360 transitions. [2023-11-29 07:06:06,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 07:06:06,608 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 360 transitions. [2023-11-29 07:06:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 07:06:06,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:06,609 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:06,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:06,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 07:06:06,812 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:06,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:06,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1984892085, now seen corresponding path program 1 times [2023-11-29 07:06:06,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:06,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983323071] [2023-11-29 07:06:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:06,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:06,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172986380] [2023-11-29 07:06:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:06,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:06,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:06,825 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:06,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 07:06:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:06,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:06,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 07:06:06,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:06,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:06,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983323071] [2023-11-29 07:06:06,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:06,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172986380] [2023-11-29 07:06:06,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172986380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:06,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:06,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:06,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873949350] [2023-11-29 07:06:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:06,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:06,930 INFO L87 Difference]: Start difference. First operand 291 states and 360 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:08,316 INFO L93 Difference]: Finished difference Result 313 states and 364 transitions. [2023-11-29 07:06:08,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:08,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2023-11-29 07:06:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:08,319 INFO L225 Difference]: With dead ends: 313 [2023-11-29 07:06:08,319 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 07:06:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:08,320 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 67 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:08,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 341 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 07:06:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 07:06:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 291. [2023-11-29 07:06:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5265700483091786) internal successors, (316), 268 states have internal predecessors, (316), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2023-11-29 07:06:08,333 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 71 [2023-11-29 07:06:08,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:08,333 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2023-11-29 07:06:08,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:08,333 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2023-11-29 07:06:08,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 07:06:08,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:08,334 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:08,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:08,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 07:06:08,534 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:08,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1402112366, now seen corresponding path program 1 times [2023-11-29 07:06:08,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:08,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769610347] [2023-11-29 07:06:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:08,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:08,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:08,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589534746] [2023-11-29 07:06:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:08,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:08,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:08,542 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:08,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 07:06:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:08,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:08,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 07:06:08,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:08,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:08,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769610347] [2023-11-29 07:06:08,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:08,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589534746] [2023-11-29 07:06:08,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589534746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:08,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:08,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:08,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480236490] [2023-11-29 07:06:08,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:08,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:08,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:08,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:08,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:08,657 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:09,896 INFO L93 Difference]: Finished difference Result 311 states and 360 transitions. [2023-11-29 07:06:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-11-29 07:06:09,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:09,898 INFO L225 Difference]: With dead ends: 311 [2023-11-29 07:06:09,898 INFO L226 Difference]: Without dead ends: 309 [2023-11-29 07:06:09,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:09,899 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 65 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:09,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 344 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 07:06:09,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-29 07:06:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 291. [2023-11-29 07:06:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 207 states have (on average 1.5072463768115942) internal successors, (312), 268 states have internal predecessors, (312), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:06:09,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 352 transitions. [2023-11-29 07:06:09,914 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 352 transitions. Word has length 72 [2023-11-29 07:06:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:09,914 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 352 transitions. [2023-11-29 07:06:09,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 352 transitions. [2023-11-29 07:06:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 07:06:09,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:09,915 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:09,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 07:06:10,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 07:06:10,115 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:10,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:10,116 INFO L85 PathProgramCache]: Analyzing trace with hash 291086520, now seen corresponding path program 1 times [2023-11-29 07:06:10,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:10,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224014114] [2023-11-29 07:06:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:10,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:10,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881903316] [2023-11-29 07:06:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:10,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:10,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:10,123 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:10,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 07:06:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:10,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:06:10,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 07:06:10,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 07:06:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:10,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224014114] [2023-11-29 07:06:10,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:10,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881903316] [2023-11-29 07:06:10,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881903316] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:06:10,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:06:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:06:10,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849442227] [2023-11-29 07:06:10,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:10,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:06:10,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:10,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:06:10,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:06:10,733 INFO L87 Difference]: Start difference. First operand 291 states and 352 transitions. Second operand has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 07:06:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:14,328 INFO L93 Difference]: Finished difference Result 362 states and 396 transitions. [2023-11-29 07:06:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:06:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 78 [2023-11-29 07:06:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:14,331 INFO L225 Difference]: With dead ends: 362 [2023-11-29 07:06:14,331 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 07:06:14,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:06:14,332 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 277 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:14,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 422 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 07:06:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 07:06:14,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 307. [2023-11-29 07:06:14,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.527027027027027) internal successors, (339), 283 states have internal predecessors, (339), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:14,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 381 transitions. [2023-11-29 07:06:14,349 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 381 transitions. Word has length 78 [2023-11-29 07:06:14,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:14,350 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 381 transitions. [2023-11-29 07:06:14,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 07:06:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 381 transitions. [2023-11-29 07:06:14,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 07:06:14,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:14,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:14,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 07:06:14,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:14,551 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:14,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:14,552 INFO L85 PathProgramCache]: Analyzing trace with hash 433747667, now seen corresponding path program 1 times [2023-11-29 07:06:14,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:14,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027331565] [2023-11-29 07:06:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:14,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:14,560 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:14,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545108786] [2023-11-29 07:06:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:14,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:14,561 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:14,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 07:06:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:14,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:06:14,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:15,306 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 07:06:15,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027331565] [2023-11-29 07:06:19,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545108786] [2023-11-29 07:06:19,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545108786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:19,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:19,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:06:19,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890531002] [2023-11-29 07:06:19,590 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:19,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:06:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:06:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2023-11-29 07:06:19,590 INFO L87 Difference]: Start difference. First operand 307 states and 381 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 07:06:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:23,228 INFO L93 Difference]: Finished difference Result 324 states and 385 transitions. [2023-11-29 07:06:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:06:23,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2023-11-29 07:06:23,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:23,230 INFO L225 Difference]: With dead ends: 324 [2023-11-29 07:06:23,230 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 07:06:23,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=37, Invalid=94, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:06:23,231 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 256 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:23,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 393 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 07:06:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 07:06:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 307. [2023-11-29 07:06:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.5) internal successors, (333), 283 states have internal predecessors, (333), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 375 transitions. [2023-11-29 07:06:23,250 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 375 transitions. Word has length 79 [2023-11-29 07:06:23,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:23,251 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 375 transitions. [2023-11-29 07:06:23,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 07:06:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 375 transitions. [2023-11-29 07:06:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 07:06:23,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:23,252 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:23,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 07:06:23,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:23,452 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:23,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash 561275930, now seen corresponding path program 1 times [2023-11-29 07:06:23,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:23,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252202461] [2023-11-29 07:06:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:23,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355726281] [2023-11-29 07:06:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:23,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:23,460 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:23,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 07:06:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:23,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:06:23,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 07:06:23,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252202461] [2023-11-29 07:06:23,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355726281] [2023-11-29 07:06:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355726281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:23,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:23,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:06:23,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647791067] [2023-11-29 07:06:23,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:23,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:06:23,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:23,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:06:23,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:06:23,890 INFO L87 Difference]: Start difference. First operand 307 states and 375 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:26,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:26,243 INFO L93 Difference]: Finished difference Result 317 states and 375 transitions. [2023-11-29 07:06:26,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:06:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 80 [2023-11-29 07:06:26,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:26,245 INFO L225 Difference]: With dead ends: 317 [2023-11-29 07:06:26,245 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 07:06:26,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:06:26,245 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 211 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:26,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 392 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 07:06:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 07:06:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 307. [2023-11-29 07:06:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.490990990990991) internal successors, (331), 283 states have internal predecessors, (331), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 373 transitions. [2023-11-29 07:06:26,260 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 373 transitions. Word has length 80 [2023-11-29 07:06:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:26,261 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 373 transitions. [2023-11-29 07:06:26,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 373 transitions. [2023-11-29 07:06:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 07:06:26,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:26,261 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:26,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 07:06:26,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 07:06:26,462 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:26,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:26,462 INFO L85 PathProgramCache]: Analyzing trace with hash -900465954, now seen corresponding path program 1 times [2023-11-29 07:06:26,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:26,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920833437] [2023-11-29 07:06:26,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:26,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:26,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271787616] [2023-11-29 07:06:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:26,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:26,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:26,470 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:26,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 07:06:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:26,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:06:26,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 07:06:27,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:36,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920833437] [2023-11-29 07:06:36,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271787616] [2023-11-29 07:06:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271787616] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:36,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:06:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397635787] [2023-11-29 07:06:36,189 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:36,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:06:36,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:06:36,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=119, Unknown=2, NotChecked=0, Total=156 [2023-11-29 07:06:36,190 INFO L87 Difference]: Start difference. First operand 307 states and 373 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:38,799 INFO L93 Difference]: Finished difference Result 318 states and 375 transitions. [2023-11-29 07:06:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:06:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2023-11-29 07:06:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:38,801 INFO L225 Difference]: With dead ends: 318 [2023-11-29 07:06:38,801 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 07:06:38,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=43, Invalid=165, Unknown=2, NotChecked=0, Total=210 [2023-11-29 07:06:38,802 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 246 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:38,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 466 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 07:06:38,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 07:06:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 307. [2023-11-29 07:06:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 222 states have (on average 1.472972972972973) internal successors, (327), 283 states have internal predecessors, (327), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 369 transitions. [2023-11-29 07:06:38,816 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 369 transitions. Word has length 84 [2023-11-29 07:06:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:38,816 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 369 transitions. [2023-11-29 07:06:38,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 07:06:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 369 transitions. [2023-11-29 07:06:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 07:06:38,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:38,817 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:38,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 07:06:39,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 07:06:39,018 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:39,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:39,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2100544102, now seen corresponding path program 1 times [2023-11-29 07:06:39,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:39,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263611994] [2023-11-29 07:06:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:39,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:39,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940992935] [2023-11-29 07:06:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:39,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:39,027 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:39,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 07:06:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:39,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:06:39,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:39,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:39,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:39,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263611994] [2023-11-29 07:06:39,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:39,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940992935] [2023-11-29 07:06:39,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940992935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:39,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:39,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:06:39,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858409805] [2023-11-29 07:06:39,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:39,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:06:39,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:39,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:06:39,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:39,090 INFO L87 Difference]: Start difference. First operand 307 states and 369 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 07:06:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:39,143 INFO L93 Difference]: Finished difference Result 307 states and 369 transitions. [2023-11-29 07:06:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:39,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 93 [2023-11-29 07:06:39,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:39,145 INFO L225 Difference]: With dead ends: 307 [2023-11-29 07:06:39,145 INFO L226 Difference]: Without dead ends: 306 [2023-11-29 07:06:39,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:06:39,145 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 48 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:39,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 251 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:06:39,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-29 07:06:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-11-29 07:06:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 222 states have (on average 1.4594594594594594) internal successors, (324), 282 states have internal predecessors, (324), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 366 transitions. [2023-11-29 07:06:39,160 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 366 transitions. Word has length 93 [2023-11-29 07:06:39,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:39,161 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 366 transitions. [2023-11-29 07:06:39,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 07:06:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 366 transitions. [2023-11-29 07:06:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 07:06:39,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:39,162 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:39,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:39,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 07:06:39,362 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:39,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:39,363 INFO L85 PathProgramCache]: Analyzing trace with hash 362782761, now seen corresponding path program 1 times [2023-11-29 07:06:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:39,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600785257] [2023-11-29 07:06:39,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:39,369 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:39,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639006691] [2023-11-29 07:06:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:39,370 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:39,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 07:06:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:39,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:39,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:39,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:39,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:39,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600785257] [2023-11-29 07:06:39,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:39,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639006691] [2023-11-29 07:06:39,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639006691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:39,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:39,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213569139] [2023-11-29 07:06:39,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:39,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:39,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:39,494 INFO L87 Difference]: Start difference. First operand 306 states and 366 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:39,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:39,736 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-11-29 07:06:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:06:39,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 96 [2023-11-29 07:06:39,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:39,738 INFO L225 Difference]: With dead ends: 316 [2023-11-29 07:06:39,738 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 07:06:39,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:39,739 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 14 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:39,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 531 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:06:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 07:06:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2023-11-29 07:06:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 223 states have (on average 1.4573991031390134) internal successors, (325), 283 states have internal predecessors, (325), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:39,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 367 transitions. [2023-11-29 07:06:39,753 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 367 transitions. Word has length 96 [2023-11-29 07:06:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:39,753 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 367 transitions. [2023-11-29 07:06:39,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 367 transitions. [2023-11-29 07:06:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 07:06:39,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:39,754 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:39,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:39,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 07:06:39,954 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:39,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1638636118, now seen corresponding path program 1 times [2023-11-29 07:06:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:39,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017567332] [2023-11-29 07:06:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:39,962 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763784888] [2023-11-29 07:06:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:39,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:39,964 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 07:06:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:40,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:06:40,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:40,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:40,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:40,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017567332] [2023-11-29 07:06:40,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:40,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763784888] [2023-11-29 07:06:40,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763784888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:40,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:40,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:40,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456084195] [2023-11-29 07:06:40,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:40,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:40,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:40,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:40,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:40,169 INFO L87 Difference]: Start difference. First operand 307 states and 367 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:40,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:40,989 INFO L93 Difference]: Finished difference Result 315 states and 369 transitions. [2023-11-29 07:06:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:40,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-11-29 07:06:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:40,990 INFO L225 Difference]: With dead ends: 315 [2023-11-29 07:06:40,990 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 07:06:40,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:40,991 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 15 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:40,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 319 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 07:06:40,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 07:06:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2023-11-29 07:06:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 224 states have (on average 1.4553571428571428) internal successors, (326), 284 states have internal predecessors, (326), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 368 transitions. [2023-11-29 07:06:41,010 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 368 transitions. Word has length 97 [2023-11-29 07:06:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:41,010 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 368 transitions. [2023-11-29 07:06:41,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 368 transitions. [2023-11-29 07:06:41,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 07:06:41,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:41,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:41,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:41,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 07:06:41,211 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:41,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash 741888075, now seen corresponding path program 1 times [2023-11-29 07:06:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:41,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337254956] [2023-11-29 07:06:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:41,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:41,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:41,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111556333] [2023-11-29 07:06:41,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:41,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:41,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:41,221 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:41,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 07:06:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:41,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:41,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:41,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:41,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337254956] [2023-11-29 07:06:41,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111556333] [2023-11-29 07:06:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111556333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:41,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771767243] [2023-11-29 07:06:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:41,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:41,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:41,414 INFO L87 Difference]: Start difference. First operand 308 states and 368 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:41,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:41,509 INFO L93 Difference]: Finished difference Result 322 states and 376 transitions. [2023-11-29 07:06:41,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:06:41,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2023-11-29 07:06:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:41,512 INFO L225 Difference]: With dead ends: 322 [2023-11-29 07:06:41,512 INFO L226 Difference]: Without dead ends: 321 [2023-11-29 07:06:41,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:41,513 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 43 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:41,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 228 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-11-29 07:06:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2023-11-29 07:06:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 225 states have (on average 1.4533333333333334) internal successors, (327), 285 states have internal predecessors, (327), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 07:06:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 369 transitions. [2023-11-29 07:06:41,529 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 369 transitions. Word has length 98 [2023-11-29 07:06:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:41,529 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 369 transitions. [2023-11-29 07:06:41,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 369 transitions. [2023-11-29 07:06:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 07:06:41,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:41,530 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:41,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 07:06:41,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 07:06:41,730 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:41,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash 133311324, now seen corresponding path program 1 times [2023-11-29 07:06:41,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:41,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582133963] [2023-11-29 07:06:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:41,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:41,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:41,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261518288] [2023-11-29 07:06:41,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:41,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:41,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:41,740 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:41,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 07:06:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:41,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:06:41,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:41,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:41,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:41,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582133963] [2023-11-29 07:06:41,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:41,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261518288] [2023-11-29 07:06:41,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261518288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:06:41,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:06:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 07:06:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000634210] [2023-11-29 07:06:41,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:41,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:06:41,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:06:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:06:41,944 INFO L87 Difference]: Start difference. First operand 309 states and 369 transitions. Second operand has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:06:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:42,168 INFO L93 Difference]: Finished difference Result 736 states and 804 transitions. [2023-11-29 07:06:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:06:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-11-29 07:06:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:42,171 INFO L225 Difference]: With dead ends: 736 [2023-11-29 07:06:42,171 INFO L226 Difference]: Without dead ends: 735 [2023-11-29 07:06:42,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:06:42,172 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 496 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:42,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1011 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:42,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-11-29 07:06:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 537. [2023-11-29 07:06:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 433 states have (on average 1.4549653579676673) internal successors, (630), 493 states have internal predecessors, (630), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 706 transitions. [2023-11-29 07:06:42,203 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 706 transitions. Word has length 99 [2023-11-29 07:06:42,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:42,204 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 706 transitions. [2023-11-29 07:06:42,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 12 states have internal predecessors, (119), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:06:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 706 transitions. [2023-11-29 07:06:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 07:06:42,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:42,205 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:42,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 07:06:42,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 07:06:42,405 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:42,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1523694028, now seen corresponding path program 1 times [2023-11-29 07:06:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757533372] [2023-11-29 07:06:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:42,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:42,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980685304] [2023-11-29 07:06:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:42,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:42,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:42,416 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:42,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 07:06:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:42,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:42,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:42,608 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:42,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:42,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757533372] [2023-11-29 07:06:42,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:42,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980685304] [2023-11-29 07:06:42,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980685304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:42,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:42,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:06:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745179704] [2023-11-29 07:06:42,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:42,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:06:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:42,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:06:42,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:42,610 INFO L87 Difference]: Start difference. First operand 537 states and 706 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:42,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:42,781 INFO L93 Difference]: Finished difference Result 561 states and 724 transitions. [2023-11-29 07:06:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:42,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2023-11-29 07:06:42,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:42,785 INFO L225 Difference]: With dead ends: 561 [2023-11-29 07:06:42,785 INFO L226 Difference]: Without dead ends: 560 [2023-11-29 07:06:42,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:06:42,786 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 81 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:42,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 312 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:42,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-29 07:06:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 544. [2023-11-29 07:06:42,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 440 states have (on average 1.4477272727272728) internal successors, (637), 500 states have internal predecessors, (637), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 713 transitions. [2023-11-29 07:06:42,813 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 713 transitions. Word has length 99 [2023-11-29 07:06:42,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:42,813 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 713 transitions. [2023-11-29 07:06:42,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 713 transitions. [2023-11-29 07:06:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 07:06:42,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:42,814 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:42,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 07:06:43,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:43,014 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:43,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash -10125203, now seen corresponding path program 1 times [2023-11-29 07:06:43,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:43,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501640393] [2023-11-29 07:06:43,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:43,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:43,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201668883] [2023-11-29 07:06:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:43,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:43,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:43,022 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:43,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 07:06:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:43,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:43,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:43,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:43,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501640393] [2023-11-29 07:06:43,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201668883] [2023-11-29 07:06:43,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201668883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:43,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:43,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670316038] [2023-11-29 07:06:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:43,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:43,157 INFO L87 Difference]: Start difference. First operand 544 states and 713 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:43,329 INFO L93 Difference]: Finished difference Result 556 states and 719 transitions. [2023-11-29 07:06:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:06:43,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2023-11-29 07:06:43,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:43,333 INFO L225 Difference]: With dead ends: 556 [2023-11-29 07:06:43,333 INFO L226 Difference]: Without dead ends: 555 [2023-11-29 07:06:43,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:43,333 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 17 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:43,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 442 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-29 07:06:43,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2023-11-29 07:06:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 442 states have (on average 1.4479638009049773) internal successors, (640), 502 states have internal predecessors, (640), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 716 transitions. [2023-11-29 07:06:43,366 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 716 transitions. Word has length 100 [2023-11-29 07:06:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:43,366 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 716 transitions. [2023-11-29 07:06:43,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 716 transitions. [2023-11-29 07:06:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 07:06:43,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:43,367 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:43,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 07:06:43,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:43,567 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:43,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash -313881106, now seen corresponding path program 1 times [2023-11-29 07:06:43,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:43,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986100927] [2023-11-29 07:06:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:43,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:43,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343243606] [2023-11-29 07:06:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:43,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:43,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:43,577 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:43,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 07:06:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:43,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:06:43,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:43,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:43,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:43,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986100927] [2023-11-29 07:06:43,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:43,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343243606] [2023-11-29 07:06:43,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343243606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:43,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:43,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323336110] [2023-11-29 07:06:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:43,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:43,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:43,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:43,886 INFO L87 Difference]: Start difference. First operand 546 states and 716 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:44,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:44,400 INFO L93 Difference]: Finished difference Result 555 states and 718 transitions. [2023-11-29 07:06:44,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:06:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2023-11-29 07:06:44,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:44,403 INFO L225 Difference]: With dead ends: 555 [2023-11-29 07:06:44,403 INFO L226 Difference]: Without dead ends: 554 [2023-11-29 07:06:44,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:44,404 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 20 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:44,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 359 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 07:06:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-29 07:06:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 547. [2023-11-29 07:06:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4469525959367946) internal successors, (641), 503 states have internal predecessors, (641), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 717 transitions. [2023-11-29 07:06:44,437 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 717 transitions. Word has length 101 [2023-11-29 07:06:44,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:44,438 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 717 transitions. [2023-11-29 07:06:44,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 717 transitions. [2023-11-29 07:06:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 07:06:44,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:44,438 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:44,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 07:06:44,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:44,639 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:44,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:44,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1367017996, now seen corresponding path program 1 times [2023-11-29 07:06:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47955115] [2023-11-29 07:06:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:44,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:44,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:44,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739673288] [2023-11-29 07:06:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:44,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:44,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:44,647 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:44,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 07:06:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:44,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:06:44,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:06:44,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47955115] [2023-11-29 07:06:45,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739673288] [2023-11-29 07:06:45,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739673288] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:45,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:06:45,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736529571] [2023-11-29 07:06:45,189 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:45,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:06:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:06:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:06:45,190 INFO L87 Difference]: Start difference. First operand 547 states and 717 transitions. Second operand has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:46,478 INFO L93 Difference]: Finished difference Result 559 states and 718 transitions. [2023-11-29 07:06:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:06:46,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 102 [2023-11-29 07:06:46,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:46,480 INFO L225 Difference]: With dead ends: 559 [2023-11-29 07:06:46,480 INFO L226 Difference]: Without dead ends: 557 [2023-11-29 07:06:46,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:06:46,481 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 451 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:46,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 438 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:06:46,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-29 07:06:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 547. [2023-11-29 07:06:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4424379232505644) internal successors, (639), 503 states have internal predecessors, (639), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 715 transitions. [2023-11-29 07:06:46,509 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 715 transitions. Word has length 102 [2023-11-29 07:06:46,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:46,509 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 715 transitions. [2023-11-29 07:06:46,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.875) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:46,509 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 715 transitions. [2023-11-29 07:06:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 07:06:46,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:46,510 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:46,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 07:06:46,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:46,710 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:46,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash 572115168, now seen corresponding path program 1 times [2023-11-29 07:06:46,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:46,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077359118] [2023-11-29 07:06:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:46,719 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:46,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915276191] [2023-11-29 07:06:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:46,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:46,720 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:46,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 07:06:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:46,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:06:46,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:46,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:46,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:46,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077359118] [2023-11-29 07:06:46,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:46,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915276191] [2023-11-29 07:06:46,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915276191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:46,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:46,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:06:46,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908516312] [2023-11-29 07:06:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:46,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:06:46,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:46,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:06:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:06:46,801 INFO L87 Difference]: Start difference. First operand 547 states and 715 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 07:06:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:47,068 INFO L93 Difference]: Finished difference Result 650 states and 780 transitions. [2023-11-29 07:06:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:06:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 103 [2023-11-29 07:06:47,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:47,075 INFO L225 Difference]: With dead ends: 650 [2023-11-29 07:06:47,075 INFO L226 Difference]: Without dead ends: 649 [2023-11-29 07:06:47,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:06:47,076 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 297 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:47,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 580 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:06:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-29 07:06:47,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 547. [2023-11-29 07:06:47,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4288939051918736) internal successors, (633), 503 states have internal predecessors, (633), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 709 transitions. [2023-11-29 07:06:47,106 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 709 transitions. Word has length 103 [2023-11-29 07:06:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:47,106 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 709 transitions. [2023-11-29 07:06:47,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 07:06:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 709 transitions. [2023-11-29 07:06:47,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:06:47,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:47,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:47,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 07:06:47,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:47,308 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:47,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:47,308 INFO L85 PathProgramCache]: Analyzing trace with hash 555701110, now seen corresponding path program 1 times [2023-11-29 07:06:47,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:47,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630173361] [2023-11-29 07:06:47,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:47,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:47,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2061806170] [2023-11-29 07:06:47,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:47,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:47,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:47,316 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:47,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 07:06:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:47,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:06:47,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:47,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:51,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:51,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630173361] [2023-11-29 07:06:51,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:51,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061806170] [2023-11-29 07:06:51,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061806170] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:51,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:51,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:06:51,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498676357] [2023-11-29 07:06:51,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:51,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:06:51,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:06:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=68, Unknown=1, NotChecked=0, Total=90 [2023-11-29 07:06:51,608 INFO L87 Difference]: Start difference. First operand 547 states and 709 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:52,111 INFO L93 Difference]: Finished difference Result 613 states and 770 transitions. [2023-11-29 07:06:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:06:52,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 104 [2023-11-29 07:06:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:52,114 INFO L225 Difference]: With dead ends: 613 [2023-11-29 07:06:52,114 INFO L226 Difference]: Without dead ends: 612 [2023-11-29 07:06:52,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=63, Invalid=176, Unknown=1, NotChecked=0, Total=240 [2023-11-29 07:06:52,115 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 534 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:52,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 482 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:06:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-11-29 07:06:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 547. [2023-11-29 07:06:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.4266365688487586) internal successors, (632), 503 states have internal predecessors, (632), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 708 transitions. [2023-11-29 07:06:52,145 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 708 transitions. Word has length 104 [2023-11-29 07:06:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:52,145 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 708 transitions. [2023-11-29 07:06:52,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 07:06:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 708 transitions. [2023-11-29 07:06:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 07:06:52,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:52,146 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:52,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 07:06:52,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:52,346 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:52,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash -688175738, now seen corresponding path program 1 times [2023-11-29 07:06:52,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:52,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970519751] [2023-11-29 07:06:52,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:52,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:52,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:52,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855247986] [2023-11-29 07:06:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:52,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:52,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:52,355 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:52,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 07:06:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:52,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:06:52,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:52,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:06:52,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970519751] [2023-11-29 07:06:52,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855247986] [2023-11-29 07:06:52,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855247986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:06:52,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:06:52,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:06:52,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217063782] [2023-11-29 07:06:52,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:06:52,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:06:52,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:06:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:06:52,491 INFO L87 Difference]: Start difference. First operand 547 states and 708 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:52,612 INFO L93 Difference]: Finished difference Result 621 states and 744 transitions. [2023-11-29 07:06:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:06:52,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2023-11-29 07:06:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:52,616 INFO L225 Difference]: With dead ends: 621 [2023-11-29 07:06:52,616 INFO L226 Difference]: Without dead ends: 620 [2023-11-29 07:06:52,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:06:52,617 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 148 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:52,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 944 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:52,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-11-29 07:06:52,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 561. [2023-11-29 07:06:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 457 states have (on average 1.4310722100656454) internal successors, (654), 517 states have internal predecessors, (654), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 07:06:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 730 transitions. [2023-11-29 07:06:52,661 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 730 transitions. Word has length 104 [2023-11-29 07:06:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:52,661 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 730 transitions. [2023-11-29 07:06:52,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 07:06:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 730 transitions. [2023-11-29 07:06:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 07:06:52,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:52,662 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:52,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 07:06:52,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:52,863 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:52,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash 88081325, now seen corresponding path program 1 times [2023-11-29 07:06:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:52,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493494704] [2023-11-29 07:06:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:52,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:52,870 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:52,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950728491] [2023-11-29 07:06:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:52,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:52,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:52,872 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:52,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 07:06:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:52,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:06:52,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:53,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:53,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 07:06:53,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:53,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493494704] [2023-11-29 07:06:53,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:53,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950728491] [2023-11-29 07:06:53,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950728491] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:06:53,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:06:53,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 07:06:53,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502350375] [2023-11-29 07:06:53,132 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:53,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:06:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:06:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:06:53,133 INFO L87 Difference]: Start difference. First operand 561 states and 730 transitions. Second operand has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:06:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:53,316 INFO L93 Difference]: Finished difference Result 1064 states and 1373 transitions. [2023-11-29 07:06:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:06:53,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 106 [2023-11-29 07:06:53,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:53,320 INFO L225 Difference]: With dead ends: 1064 [2023-11-29 07:06:53,320 INFO L226 Difference]: Without dead ends: 730 [2023-11-29 07:06:53,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:06:53,321 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 159 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:53,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1151 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:06:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-11-29 07:06:53,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 645. [2023-11-29 07:06:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 534 states have (on average 1.453183520599251) internal successors, (776), 594 states have internal predecessors, (776), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 07:06:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 860 transitions. [2023-11-29 07:06:53,360 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 860 transitions. Word has length 106 [2023-11-29 07:06:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:53,360 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 860 transitions. [2023-11-29 07:06:53,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.214285714285714) internal successors, (143), 14 states have internal predecessors, (143), 4 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:06:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 860 transitions. [2023-11-29 07:06:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 07:06:53,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:53,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:53,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 07:06:53,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 07:06:53,561 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:53,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:53,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1564448137, now seen corresponding path program 1 times [2023-11-29 07:06:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:53,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393895993] [2023-11-29 07:06:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:53,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:53,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418265856] [2023-11-29 07:06:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:53,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:53,570 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:53,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 07:06:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:53,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:06:53,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:06:53,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:06:53,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393895993] [2023-11-29 07:06:53,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418265856] [2023-11-29 07:06:53,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418265856] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:06:53,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:06:53,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 07:06:53,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965428324] [2023-11-29 07:06:53,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:53,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:06:53,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:53,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:06:53,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:06:53,824 INFO L87 Difference]: Start difference. First operand 645 states and 860 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:06:54,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:54,673 INFO L93 Difference]: Finished difference Result 1614 states and 2150 transitions. [2023-11-29 07:06:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:06:54,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 107 [2023-11-29 07:06:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:54,679 INFO L225 Difference]: With dead ends: 1614 [2023-11-29 07:06:54,680 INFO L226 Difference]: Without dead ends: 1585 [2023-11-29 07:06:54,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 201 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:06:54,680 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1023 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:54,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1107 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:06:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2023-11-29 07:06:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 992. [2023-11-29 07:06:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.5775962660443408) internal successors, (1352), 917 states have internal predecessors, (1352), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 07:06:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1484 transitions. [2023-11-29 07:06:54,729 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1484 transitions. Word has length 107 [2023-11-29 07:06:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:54,730 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1484 transitions. [2023-11-29 07:06:54,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:06:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1484 transitions. [2023-11-29 07:06:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 07:06:54,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:54,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:54,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 07:06:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:54,931 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:54,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 466493278, now seen corresponding path program 1 times [2023-11-29 07:06:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968000029] [2023-11-29 07:06:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:54,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560481220] [2023-11-29 07:06:54,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:54,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:54,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:54,939 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:54,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 07:06:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:54,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:06:54,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:06:55,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:06:55,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:06:55,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968000029] [2023-11-29 07:06:55,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:06:55,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560481220] [2023-11-29 07:06:55,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560481220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:06:55,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:06:55,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:06:55,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411288130] [2023-11-29 07:06:55,249 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:06:55,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:06:55,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:06:55,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:06:55,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:06:55,250 INFO L87 Difference]: Start difference. First operand 992 states and 1484 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:06:56,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:06:56,386 INFO L93 Difference]: Finished difference Result 1629 states and 2167 transitions. [2023-11-29 07:06:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:06:56,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 111 [2023-11-29 07:06:56,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:06:56,392 INFO L225 Difference]: With dead ends: 1629 [2023-11-29 07:06:56,392 INFO L226 Difference]: Without dead ends: 1626 [2023-11-29 07:06:56,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:06:56,393 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1016 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:06:56,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 1054 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:06:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2023-11-29 07:06:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 992. [2023-11-29 07:06:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.5635939323220536) internal successors, (1340), 917 states have internal predecessors, (1340), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 07:06:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1472 transitions. [2023-11-29 07:06:56,443 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1472 transitions. Word has length 111 [2023-11-29 07:06:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:06:56,443 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1472 transitions. [2023-11-29 07:06:56,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:06:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1472 transitions. [2023-11-29 07:06:56,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 07:06:56,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:06:56,445 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:06:56,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 07:06:56,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:56,645 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:06:56,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:06:56,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1576389812, now seen corresponding path program 1 times [2023-11-29 07:06:56,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:06:56,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32429565] [2023-11-29 07:06:56,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:56,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:06:56,653 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:06:56,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728998560] [2023-11-29 07:06:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:06:56,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:06:56,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:06:56,655 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:06:56,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 07:06:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:06:56,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:06:56,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:06:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:06:56,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:01,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32429565] [2023-11-29 07:07:01,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728998560] [2023-11-29 07:07:01,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728998560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:01,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:01,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:07:01,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2950772] [2023-11-29 07:07:01,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:01,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:07:01,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:07:01,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=105, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:07:01,047 INFO L87 Difference]: Start difference. First operand 992 states and 1472 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:07:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:02,153 INFO L93 Difference]: Finished difference Result 1656 states and 2148 transitions. [2023-11-29 07:07:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:07:02,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 112 [2023-11-29 07:07:02,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:02,160 INFO L225 Difference]: With dead ends: 1656 [2023-11-29 07:07:02,160 INFO L226 Difference]: Without dead ends: 1654 [2023-11-29 07:07:02,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=126, Invalid=379, Unknown=1, NotChecked=0, Total=506 [2023-11-29 07:07:02,161 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1120 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:02,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1094 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 07:07:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2023-11-29 07:07:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 992. [2023-11-29 07:07:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 857 states have (on average 1.558926487747958) internal successors, (1336), 917 states have internal predecessors, (1336), 66 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-11-29 07:07:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1468 transitions. [2023-11-29 07:07:02,210 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1468 transitions. Word has length 112 [2023-11-29 07:07:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:02,211 INFO L495 AbstractCegarLoop]: Abstraction has 992 states and 1468 transitions. [2023-11-29 07:07:02,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:07:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1468 transitions. [2023-11-29 07:07:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 07:07:02,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:02,211 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:02,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 07:07:02,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 07:07:02,412 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:02,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:02,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1212843466, now seen corresponding path program 1 times [2023-11-29 07:07:02,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:02,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186050938] [2023-11-29 07:07:02,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:02,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:02,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:02,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963507517] [2023-11-29 07:07:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:02,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:02,420 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:02,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 07:07:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:02,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:07:02,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 07:07:02,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:02,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186050938] [2023-11-29 07:07:02,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:02,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963507517] [2023-11-29 07:07:02,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963507517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:02,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:02,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:07:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039555115] [2023-11-29 07:07:02,943 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:02,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:07:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:02,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:07:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:07:02,944 INFO L87 Difference]: Start difference. First operand 992 states and 1468 transitions. Second operand has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:07:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:06,096 INFO L93 Difference]: Finished difference Result 1614 states and 2260 transitions. [2023-11-29 07:07:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:07:06,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 114 [2023-11-29 07:07:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:06,103 INFO L225 Difference]: With dead ends: 1614 [2023-11-29 07:07:06,103 INFO L226 Difference]: Without dead ends: 1612 [2023-11-29 07:07:06,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:07:06,104 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1156 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:06,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 750 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 07:07:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2023-11-29 07:07:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1112. [2023-11-29 07:07:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5810113519091846) internal successors, (1532), 1029 states have internal predecessors, (1532), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1680 transitions. [2023-11-29 07:07:06,159 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1680 transitions. Word has length 114 [2023-11-29 07:07:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:06,159 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1680 transitions. [2023-11-29 07:07:06,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 07:07:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1680 transitions. [2023-11-29 07:07:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 07:07:06,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:06,160 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:06,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 07:07:06,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 07:07:06,361 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:06,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:06,361 INFO L85 PathProgramCache]: Analyzing trace with hash -223082845, now seen corresponding path program 1 times [2023-11-29 07:07:06,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:06,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631700923] [2023-11-29 07:07:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:06,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:06,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441596080] [2023-11-29 07:07:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:06,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:06,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:06,370 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:06,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 07:07:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:06,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:07:06,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 07:07:06,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631700923] [2023-11-29 07:07:06,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441596080] [2023-11-29 07:07:06,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441596080] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:06,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:06,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:07:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226363098] [2023-11-29 07:07:06,959 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:06,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:07:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:07:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:07:06,960 INFO L87 Difference]: Start difference. First operand 1112 states and 1680 transitions. Second operand has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 07:07:09,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:09,115 INFO L93 Difference]: Finished difference Result 1316 states and 1952 transitions. [2023-11-29 07:07:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:07:09,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 120 [2023-11-29 07:07:09,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:09,121 INFO L225 Difference]: With dead ends: 1316 [2023-11-29 07:07:09,122 INFO L226 Difference]: Without dead ends: 1315 [2023-11-29 07:07:09,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:07:09,122 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 779 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:09,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 510 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:07:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-11-29 07:07:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1112. [2023-11-29 07:07:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5799793601651186) internal successors, (1531), 1029 states have internal predecessors, (1531), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1679 transitions. [2023-11-29 07:07:09,206 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1679 transitions. Word has length 120 [2023-11-29 07:07:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:09,206 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1679 transitions. [2023-11-29 07:07:09,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 07:07:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1679 transitions. [2023-11-29 07:07:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 07:07:09,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:09,207 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:09,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:09,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:09,407 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:09,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1674366488, now seen corresponding path program 1 times [2023-11-29 07:07:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951537131] [2023-11-29 07:07:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:09,415 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:09,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457877828] [2023-11-29 07:07:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:09,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:09,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:09,417 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:09,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 07:07:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:09,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:07:09,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 07:07:09,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:10,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:10,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951537131] [2023-11-29 07:07:10,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:10,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457877828] [2023-11-29 07:07:10,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457877828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:10,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:10,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:07:10,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345550202] [2023-11-29 07:07:10,416 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:10,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:07:10,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:07:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:07:10,417 INFO L87 Difference]: Start difference. First operand 1112 states and 1679 transitions. Second operand has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 07:07:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:12,646 INFO L93 Difference]: Finished difference Result 1315 states and 1951 transitions. [2023-11-29 07:07:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:07:12,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 121 [2023-11-29 07:07:12,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:12,652 INFO L225 Difference]: With dead ends: 1315 [2023-11-29 07:07:12,652 INFO L226 Difference]: Without dead ends: 1314 [2023-11-29 07:07:12,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:07:12,653 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 718 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:12,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 564 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:07:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2023-11-29 07:07:12,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1112. [2023-11-29 07:07:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 969 states have (on average 1.5789473684210527) internal successors, (1530), 1029 states have internal predecessors, (1530), 74 states have call successors, (74), 9 states have call predecessors, (74), 9 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-11-29 07:07:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1678 transitions. [2023-11-29 07:07:12,715 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1678 transitions. Word has length 121 [2023-11-29 07:07:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:12,715 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1678 transitions. [2023-11-29 07:07:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 10.625) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 07:07:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1678 transitions. [2023-11-29 07:07:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 07:07:12,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:12,716 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:12,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:12,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:12,917 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:12,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:12,917 INFO L85 PathProgramCache]: Analyzing trace with hash 365753669, now seen corresponding path program 1 times [2023-11-29 07:07:12,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:12,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003281247] [2023-11-29 07:07:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:12,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200584976] [2023-11-29 07:07:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:12,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:12,927 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:12,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 07:07:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:12,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:07:12,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:13,346 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 07:07:13,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:13,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:13,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003281247] [2023-11-29 07:07:13,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:13,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200584976] [2023-11-29 07:07:13,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200584976] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:13,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:13,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:07:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235115409] [2023-11-29 07:07:13,420 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:13,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:07:13,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:13,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:07:13,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:07:13,421 INFO L87 Difference]: Start difference. First operand 1112 states and 1678 transitions. Second operand has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 07:07:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:15,771 INFO L93 Difference]: Finished difference Result 1549 states and 2349 transitions. [2023-11-29 07:07:15,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:15,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2023-11-29 07:07:15,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:15,777 INFO L225 Difference]: With dead ends: 1549 [2023-11-29 07:07:15,777 INFO L226 Difference]: Without dead ends: 1547 [2023-11-29 07:07:15,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:07:15,778 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 424 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:15,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 463 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 07:07:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-29 07:07:15,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1144. [2023-11-29 07:07:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 998 states have (on average 1.5831663326653307) internal successors, (1580), 1059 states have internal predecessors, (1580), 77 states have call successors, (77), 9 states have call predecessors, (77), 9 states have return successors, (77), 75 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-29 07:07:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1734 transitions. [2023-11-29 07:07:15,844 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1734 transitions. Word has length 122 [2023-11-29 07:07:15,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:15,844 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1734 transitions. [2023-11-29 07:07:15,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 07:07:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1734 transitions. [2023-11-29 07:07:15,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 07:07:15,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:15,845 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:15,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 07:07:16,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:16,046 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:16,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:16,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1546538054, now seen corresponding path program 1 times [2023-11-29 07:07:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:16,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322799772] [2023-11-29 07:07:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:16,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:16,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1370295028] [2023-11-29 07:07:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:16,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:16,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:16,055 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:16,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 07:07:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:16,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:07:16,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-29 07:07:16,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:16,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322799772] [2023-11-29 07:07:16,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:16,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370295028] [2023-11-29 07:07:16,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370295028] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:16,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:16,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:07:16,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725362763] [2023-11-29 07:07:16,751 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:16,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:07:16,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:16,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:07:16,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:07:16,752 INFO L87 Difference]: Start difference. First operand 1144 states and 1734 transitions. Second operand has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 07:07:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:18,985 INFO L93 Difference]: Finished difference Result 1549 states and 2346 transitions. [2023-11-29 07:07:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:18,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 123 [2023-11-29 07:07:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:18,990 INFO L225 Difference]: With dead ends: 1549 [2023-11-29 07:07:18,990 INFO L226 Difference]: Without dead ends: 1547 [2023-11-29 07:07:18,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:07:18,991 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 359 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:18,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 596 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 07:07:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-29 07:07:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1486. [2023-11-29 07:07:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1313 states have (on average 1.613861386138614) internal successors, (2119), 1374 states have internal predecessors, (2119), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:07:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2327 transitions. [2023-11-29 07:07:19,100 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2327 transitions. Word has length 123 [2023-11-29 07:07:19,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:19,100 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2327 transitions. [2023-11-29 07:07:19,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 07:07:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2327 transitions. [2023-11-29 07:07:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 07:07:19,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:19,101 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:19,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 07:07:19,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:19,302 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:19,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash -698039321, now seen corresponding path program 1 times [2023-11-29 07:07:19,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:19,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257964919] [2023-11-29 07:07:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:19,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:19,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086984033] [2023-11-29 07:07:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:19,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:19,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:19,313 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:19,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 07:07:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:19,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:07:19,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 07:07:22,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:23,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:23,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257964919] [2023-11-29 07:07:23,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:23,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086984033] [2023-11-29 07:07:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086984033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:23,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:23,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:07:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753198890] [2023-11-29 07:07:23,185 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:23,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:07:23,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:23,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:07:23,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:07:23,186 INFO L87 Difference]: Start difference. First operand 1486 states and 2327 transitions. Second operand has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 07:07:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:37,556 INFO L93 Difference]: Finished difference Result 1524 states and 2328 transitions. [2023-11-29 07:07:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:07:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 124 [2023-11-29 07:07:37,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:37,560 INFO L225 Difference]: With dead ends: 1524 [2023-11-29 07:07:37,560 INFO L226 Difference]: Without dead ends: 1523 [2023-11-29 07:07:37,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:07:37,561 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 316 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:37,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 739 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-11-29 07:07:37,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-11-29 07:07:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1486. [2023-11-29 07:07:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1313 states have (on average 1.6108149276466108) internal successors, (2115), 1374 states have internal predecessors, (2115), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:07:37,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2323 transitions. [2023-11-29 07:07:37,636 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2323 transitions. Word has length 124 [2023-11-29 07:07:37,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:37,637 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2323 transitions. [2023-11-29 07:07:37,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-29 07:07:37,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2323 transitions. [2023-11-29 07:07:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 07:07:37,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:37,637 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:37,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 07:07:37,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 07:07:37,838 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:37,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash -164382372, now seen corresponding path program 1 times [2023-11-29 07:07:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:37,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369646064] [2023-11-29 07:07:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:37,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:37,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:37,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637283859] [2023-11-29 07:07:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:37,845 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:37,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 07:07:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:37,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:07:37,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 07:07:38,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369646064] [2023-11-29 07:07:38,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637283859] [2023-11-29 07:07:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637283859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:38,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 07:07:38,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197354703] [2023-11-29 07:07:38,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:38,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:07:38,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:38,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:07:38,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:07:38,105 INFO L87 Difference]: Start difference. First operand 1486 states and 2323 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 07:07:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:39,122 INFO L93 Difference]: Finished difference Result 1551 states and 2334 transitions. [2023-11-29 07:07:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:07:39,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 125 [2023-11-29 07:07:39,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:39,125 INFO L225 Difference]: With dead ends: 1551 [2023-11-29 07:07:39,125 INFO L226 Difference]: Without dead ends: 1548 [2023-11-29 07:07:39,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:07:39,126 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:39,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 522 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:07:39,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2023-11-29 07:07:39,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1489. [2023-11-29 07:07:39,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.6048632218844985) internal successors, (2112), 1377 states have internal predecessors, (2112), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:07:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2320 transitions. [2023-11-29 07:07:39,204 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2320 transitions. Word has length 125 [2023-11-29 07:07:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:39,204 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2320 transitions. [2023-11-29 07:07:39,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 07:07:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2320 transitions. [2023-11-29 07:07:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 07:07:39,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:39,205 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:39,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:39,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 07:07:39,405 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:39,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1625129682, now seen corresponding path program 1 times [2023-11-29 07:07:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723478648] [2023-11-29 07:07:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:39,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538463949] [2023-11-29 07:07:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:39,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:39,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:39,414 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:39,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 07:07:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:39,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:07:39,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:07:39,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:48,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723478648] [2023-11-29 07:07:48,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538463949] [2023-11-29 07:07:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538463949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:48,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:07:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189875793] [2023-11-29 07:07:48,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:48,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:07:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:07:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=96, Unknown=2, NotChecked=0, Total=132 [2023-11-29 07:07:48,159 INFO L87 Difference]: Start difference. First operand 1489 states and 2320 transitions. Second operand has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:07:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:49,646 INFO L93 Difference]: Finished difference Result 1557 states and 2347 transitions. [2023-11-29 07:07:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:49,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 131 [2023-11-29 07:07:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:49,650 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 07:07:49,650 INFO L226 Difference]: Without dead ends: 1554 [2023-11-29 07:07:49,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=38, Invalid=116, Unknown=2, NotChecked=0, Total=156 [2023-11-29 07:07:49,650 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 396 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:49,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 665 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 07:07:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-11-29 07:07:49,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1489. [2023-11-29 07:07:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5911854103343466) internal successors, (2094), 1377 states have internal predecessors, (2094), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:07:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2302 transitions. [2023-11-29 07:07:49,730 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2302 transitions. Word has length 131 [2023-11-29 07:07:49,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:49,730 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2302 transitions. [2023-11-29 07:07:49,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:07:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2302 transitions. [2023-11-29 07:07:49,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 07:07:49,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:49,731 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:49,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2023-11-29 07:07:49,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 07:07:49,932 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:49,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1160587306, now seen corresponding path program 1 times [2023-11-29 07:07:49,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:49,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082116121] [2023-11-29 07:07:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:49,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:49,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935907989] [2023-11-29 07:07:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:49,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:49,940 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:49,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 07:07:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:50,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:07:50,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:07:50,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:07:53,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:07:53,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082116121] [2023-11-29 07:07:53,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:07:53,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935907989] [2023-11-29 07:07:53,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935907989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:07:53,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:07:53,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:07:53,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258282408] [2023-11-29 07:07:53,522 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:07:53,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:07:53,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:07:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:07:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=94, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:07:53,523 INFO L87 Difference]: Start difference. First operand 1489 states and 2302 transitions. Second operand has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:07:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:07:55,243 INFO L93 Difference]: Finished difference Result 1557 states and 2329 transitions. [2023-11-29 07:07:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:07:55,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 132 [2023-11-29 07:07:55,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:07:55,246 INFO L225 Difference]: With dead ends: 1557 [2023-11-29 07:07:55,246 INFO L226 Difference]: Without dead ends: 1554 [2023-11-29 07:07:55,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2023-11-29 07:07:55,246 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 359 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:07:55,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 469 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 07:07:55,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-11-29 07:07:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1489. [2023-11-29 07:07:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5775075987841944) internal successors, (2076), 1377 states have internal predecessors, (2076), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:07:55,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2284 transitions. [2023-11-29 07:07:55,321 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2284 transitions. Word has length 132 [2023-11-29 07:07:55,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:07:55,321 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2284 transitions. [2023-11-29 07:07:55,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:07:55,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2284 transitions. [2023-11-29 07:07:55,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 07:07:55,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:07:55,322 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:07:55,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 07:07:55,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 07:07:55,523 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:07:55,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:07:55,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1618468012, now seen corresponding path program 1 times [2023-11-29 07:07:55,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:07:55,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346590693] [2023-11-29 07:07:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:07:55,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:07:55,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194332936] [2023-11-29 07:07:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:07:55,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:07:55,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:07:55,530 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:07:55,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 07:07:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:07:55,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:07:55,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:07:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:07:56,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:00,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:00,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346590693] [2023-11-29 07:08:00,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:00,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194332936] [2023-11-29 07:08:00,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194332936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:00,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:00,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:08:00,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378306153] [2023-11-29 07:08:00,359 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:08:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:08:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=170, Unknown=1, NotChecked=0, Total=210 [2023-11-29 07:08:00,360 INFO L87 Difference]: Start difference. First operand 1489 states and 2284 transitions. Second operand has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:02,187 INFO L93 Difference]: Finished difference Result 1537 states and 2301 transitions. [2023-11-29 07:08:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:08:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 133 [2023-11-29 07:08:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:02,189 INFO L225 Difference]: With dead ends: 1537 [2023-11-29 07:08:02,189 INFO L226 Difference]: Without dead ends: 1536 [2023-11-29 07:08:02,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=87, Invalid=374, Unknown=1, NotChecked=0, Total=462 [2023-11-29 07:08:02,190 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 496 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:02,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 560 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 07:08:02,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2023-11-29 07:08:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1489. [2023-11-29 07:08:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5767477203647415) internal successors, (2075), 1377 states have internal predecessors, (2075), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2283 transitions. [2023-11-29 07:08:02,264 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2283 transitions. Word has length 133 [2023-11-29 07:08:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:02,265 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2283 transitions. [2023-11-29 07:08:02,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.222222222222221) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2283 transitions. [2023-11-29 07:08:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 07:08:02,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:02,265 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:02,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 07:08:02,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:02,466 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:02,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1367099288, now seen corresponding path program 1 times [2023-11-29 07:08:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918615795] [2023-11-29 07:08:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:02,472 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:02,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639609079] [2023-11-29 07:08:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:02,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:02,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:02,474 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:02,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 07:08:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:02,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:08:02,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:03,151 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:08:03,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:06,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:06,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918615795] [2023-11-29 07:08:06,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:06,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639609079] [2023-11-29 07:08:06,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639609079] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:06,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:06,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:08:06,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422680444] [2023-11-29 07:08:06,576 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:06,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:08:06,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:06,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:08:06,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=170, Unknown=1, NotChecked=0, Total=210 [2023-11-29 07:08:06,577 INFO L87 Difference]: Start difference. First operand 1489 states and 2283 transitions. Second operand has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:08,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:08,887 INFO L93 Difference]: Finished difference Result 1536 states and 2300 transitions. [2023-11-29 07:08:08,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:08:08,887 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 134 [2023-11-29 07:08:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:08,889 INFO L225 Difference]: With dead ends: 1536 [2023-11-29 07:08:08,890 INFO L226 Difference]: Without dead ends: 1534 [2023-11-29 07:08:08,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=87, Invalid=374, Unknown=1, NotChecked=0, Total=462 [2023-11-29 07:08:08,890 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 491 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:08,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 560 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:08:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-11-29 07:08:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1489. [2023-11-29 07:08:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5706686930091185) internal successors, (2067), 1377 states have internal predecessors, (2067), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2275 transitions. [2023-11-29 07:08:08,972 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2275 transitions. Word has length 134 [2023-11-29 07:08:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:08,972 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2275 transitions. [2023-11-29 07:08:08,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2275 transitions. [2023-11-29 07:08:08,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 07:08:08,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:08,973 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:08,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 07:08:09,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:09,174 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:09,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash -569594922, now seen corresponding path program 1 times [2023-11-29 07:08:09,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:09,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032282812] [2023-11-29 07:08:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:09,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:09,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:09,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59261702] [2023-11-29 07:08:09,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:09,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:09,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:09,184 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:09,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 07:08:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:09,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:08:09,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:08:09,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:09,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032282812] [2023-11-29 07:08:09,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:09,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59261702] [2023-11-29 07:08:09,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59261702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:09,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:09,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:08:09,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843851240] [2023-11-29 07:08:09,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:09,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:08:09,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:09,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:08:09,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:08:09,697 INFO L87 Difference]: Start difference. First operand 1489 states and 2275 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:08:11,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:11,228 INFO L93 Difference]: Finished difference Result 1567 states and 2311 transitions. [2023-11-29 07:08:11,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:08:11,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 135 [2023-11-29 07:08:11,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:11,231 INFO L225 Difference]: With dead ends: 1567 [2023-11-29 07:08:11,231 INFO L226 Difference]: Without dead ends: 1565 [2023-11-29 07:08:11,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:08:11,231 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 261 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:11,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 735 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 07:08:11,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-11-29 07:08:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1489. [2023-11-29 07:08:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5630699088145896) internal successors, (2057), 1377 states have internal predecessors, (2057), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2265 transitions. [2023-11-29 07:08:11,313 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2265 transitions. Word has length 135 [2023-11-29 07:08:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:11,313 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2265 transitions. [2023-11-29 07:08:11,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 07:08:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2265 transitions. [2023-11-29 07:08:11,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 07:08:11,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:11,314 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:11,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 07:08:11,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:11,515 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:11,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash -477573286, now seen corresponding path program 1 times [2023-11-29 07:08:11,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:11,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846859535] [2023-11-29 07:08:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:11,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:11,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:11,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1878898209] [2023-11-29 07:08:11,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:11,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:11,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:11,523 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:11,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 07:08:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:11,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:08:11,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 07:08:12,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:13,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:13,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846859535] [2023-11-29 07:08:13,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:13,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878898209] [2023-11-29 07:08:13,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878898209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:13,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:08:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180108143] [2023-11-29 07:08:13,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:13,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:08:13,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:13,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:08:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:08:13,308 INFO L87 Difference]: Start difference. First operand 1489 states and 2265 transitions. Second operand has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:17,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:17,869 INFO L93 Difference]: Finished difference Result 1533 states and 2282 transitions. [2023-11-29 07:08:17,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:08:17,870 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 136 [2023-11-29 07:08:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:17,873 INFO L225 Difference]: With dead ends: 1533 [2023-11-29 07:08:17,873 INFO L226 Difference]: Without dead ends: 1532 [2023-11-29 07:08:17,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:08:17,874 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 540 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 548 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 07:08:17,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-29 07:08:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1489. [2023-11-29 07:08:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5600303951367782) internal successors, (2053), 1377 states have internal predecessors, (2053), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2261 transitions. [2023-11-29 07:08:17,969 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2261 transitions. Word has length 136 [2023-11-29 07:08:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:17,970 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2261 transitions. [2023-11-29 07:08:17,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 07:08:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2261 transitions. [2023-11-29 07:08:17,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 07:08:17,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:17,970 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:17,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:18,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:18,171 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:18,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1658367015, now seen corresponding path program 1 times [2023-11-29 07:08:18,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004096642] [2023-11-29 07:08:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:18,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:18,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:18,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581496209] [2023-11-29 07:08:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:18,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:18,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:18,179 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:18,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 07:08:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:18,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:08:18,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 07:08:19,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:28,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:28,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004096642] [2023-11-29 07:08:28,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:28,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581496209] [2023-11-29 07:08:28,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581496209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:28,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:28,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:08:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436983793] [2023-11-29 07:08:28,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:28,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:08:28,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:08:28,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=194, Unknown=2, NotChecked=0, Total=240 [2023-11-29 07:08:28,390 INFO L87 Difference]: Start difference. First operand 1489 states and 2261 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 07:08:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:34,460 INFO L93 Difference]: Finished difference Result 1524 states and 2270 transitions. [2023-11-29 07:08:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:08:34,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) Word has length 142 [2023-11-29 07:08:34,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:34,463 INFO L225 Difference]: With dead ends: 1524 [2023-11-29 07:08:34,463 INFO L226 Difference]: Without dead ends: 1523 [2023-11-29 07:08:34,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=98, Invalid=406, Unknown=2, NotChecked=0, Total=506 [2023-11-29 07:08:34,464 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 673 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:34,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 785 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-29 07:08:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2023-11-29 07:08:34,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1489. [2023-11-29 07:08:34,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5569908814589666) internal successors, (2049), 1377 states have internal predecessors, (2049), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:34,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2257 transitions. [2023-11-29 07:08:34,551 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2257 transitions. Word has length 142 [2023-11-29 07:08:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:34,552 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2257 transitions. [2023-11-29 07:08:34,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 07:08:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2257 transitions. [2023-11-29 07:08:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 07:08:34,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:34,553 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:34,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 07:08:34,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:34,753 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:34,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash 130230204, now seen corresponding path program 1 times [2023-11-29 07:08:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103236321] [2023-11-29 07:08:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:34,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:34,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:34,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103866233] [2023-11-29 07:08:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:34,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:34,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:34,763 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:34,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 07:08:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:34,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:08:34,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:35,152 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:08:35,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:39,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103236321] [2023-11-29 07:08:39,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103866233] [2023-11-29 07:08:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103866233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:39,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:08:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552759278] [2023-11-29 07:08:39,521 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:39,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:08:39,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:08:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2023-11-29 07:08:39,522 INFO L87 Difference]: Start difference. First operand 1489 states and 2257 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 07:08:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:40,035 INFO L93 Difference]: Finished difference Result 1552 states and 2284 transitions. [2023-11-29 07:08:40,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:08:40,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 143 [2023-11-29 07:08:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:40,040 INFO L225 Difference]: With dead ends: 1552 [2023-11-29 07:08:40,040 INFO L226 Difference]: Without dead ends: 1551 [2023-11-29 07:08:40,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:08:40,041 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 97 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:40,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 862 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 07:08:40,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2023-11-29 07:08:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1489. [2023-11-29 07:08:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5509118541033435) internal successors, (2041), 1377 states have internal predecessors, (2041), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2249 transitions. [2023-11-29 07:08:40,124 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2249 transitions. Word has length 143 [2023-11-29 07:08:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:40,125 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2249 transitions. [2023-11-29 07:08:40,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 07:08:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2249 transitions. [2023-11-29 07:08:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 07:08:40,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:40,126 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:40,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 07:08:40,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:40,327 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:40,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash -257830853, now seen corresponding path program 1 times [2023-11-29 07:08:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860819251] [2023-11-29 07:08:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:40,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:40,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830235155] [2023-11-29 07:08:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:40,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:40,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:40,336 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:40,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 07:08:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:40,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:08:40,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 18 proven. 40 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 07:08:41,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:41,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:41,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860819251] [2023-11-29 07:08:41,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:41,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830235155] [2023-11-29 07:08:41,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830235155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:41,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:41,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 07:08:41,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41255270] [2023-11-29 07:08:41,726 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:41,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:08:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:41,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:08:41,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:08:41,727 INFO L87 Difference]: Start difference. First operand 1489 states and 2249 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:08:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:45,457 INFO L93 Difference]: Finished difference Result 1530 states and 2266 transitions. [2023-11-29 07:08:45,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:08:45,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 144 [2023-11-29 07:08:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:45,459 INFO L225 Difference]: With dead ends: 1530 [2023-11-29 07:08:45,459 INFO L226 Difference]: Without dead ends: 1529 [2023-11-29 07:08:45,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:08:45,460 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 437 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:45,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 699 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 07:08:45,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2023-11-29 07:08:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1489. [2023-11-29 07:08:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.547872340425532) internal successors, (2037), 1377 states have internal predecessors, (2037), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2245 transitions. [2023-11-29 07:08:45,541 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2245 transitions. Word has length 144 [2023-11-29 07:08:45,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:45,542 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2245 transitions. [2023-11-29 07:08:45,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:08:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2245 transitions. [2023-11-29 07:08:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 07:08:45,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:45,543 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:45,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 07:08:45,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:45,743 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:45,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash 597178270, now seen corresponding path program 1 times [2023-11-29 07:08:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:45,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274243976] [2023-11-29 07:08:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:45,750 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080388162] [2023-11-29 07:08:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:45,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:45,751 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:45,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 07:08:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:45,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 07:08:45,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 41 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 07:08:46,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:08:51,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:08:51,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274243976] [2023-11-29 07:08:51,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:08:51,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080388162] [2023-11-29 07:08:51,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080388162] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:08:51,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:08:51,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 07:08:51,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723534415] [2023-11-29 07:08:51,975 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:08:51,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:08:51,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:08:51,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:08:51,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=256, Unknown=1, NotChecked=0, Total=306 [2023-11-29 07:08:51,976 INFO L87 Difference]: Start difference. First operand 1489 states and 2245 transitions. Second operand has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:08:54,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:08:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:56,273 INFO L93 Difference]: Finished difference Result 1529 states and 2262 transitions. [2023-11-29 07:08:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:08:56,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 145 [2023-11-29 07:08:56,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:56,277 INFO L225 Difference]: With dead ends: 1529 [2023-11-29 07:08:56,277 INFO L226 Difference]: Without dead ends: 1528 [2023-11-29 07:08:56,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=75, Invalid=386, Unknown=1, NotChecked=0, Total=462 [2023-11-29 07:08:56,278 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:56,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 766 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 07:08:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2023-11-29 07:08:56,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1489. [2023-11-29 07:08:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5448328267477203) internal successors, (2033), 1377 states have internal predecessors, (2033), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:08:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2241 transitions. [2023-11-29 07:08:56,376 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2241 transitions. Word has length 145 [2023-11-29 07:08:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:56,376 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2241 transitions. [2023-11-29 07:08:56,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:08:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2241 transitions. [2023-11-29 07:08:56,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 07:08:56,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:56,377 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:56,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2023-11-29 07:08:56,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:56,578 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:08:56,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1332657309, now seen corresponding path program 1 times [2023-11-29 07:08:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:08:56,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866937361] [2023-11-29 07:08:56,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:56,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:08:56,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:08:56,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020871868] [2023-11-29 07:08:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:08:56,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:56,590 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:08:56,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 07:08:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:56,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 07:08:56,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:02,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:02,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:02,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866937361] [2023-11-29 07:09:02,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:02,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020871868] [2023-11-29 07:09:02,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020871868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:02,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:09:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983240427] [2023-11-29 07:09:02,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:02,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:09:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:02,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:09:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:09:02,087 INFO L87 Difference]: Start difference. First operand 1489 states and 2241 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:07,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:10,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:14,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:18,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:22,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:09:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:28,448 INFO L93 Difference]: Finished difference Result 1520 states and 2250 transitions. [2023-11-29 07:09:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:09:28,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 146 [2023-11-29 07:09:28,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:28,451 INFO L225 Difference]: With dead ends: 1520 [2023-11-29 07:09:28,451 INFO L226 Difference]: Without dead ends: 1519 [2023-11-29 07:09:28,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:09:28,451 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 460 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 23 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:28,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 636 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1565 Invalid, 4 Unknown, 0 Unchecked, 24.4s Time] [2023-11-29 07:09:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2023-11-29 07:09:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1489. [2023-11-29 07:09:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5417933130699089) internal successors, (2029), 1377 states have internal predecessors, (2029), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:09:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2237 transitions. [2023-11-29 07:09:28,543 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2237 transitions. Word has length 146 [2023-11-29 07:09:28,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:28,543 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2237 transitions. [2023-11-29 07:09:28,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 11 states have internal predecessors, (100), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2237 transitions. [2023-11-29 07:09:28,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 07:09:28,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:28,544 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:28,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:28,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:28,744 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:09:28,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1637296256, now seen corresponding path program 1 times [2023-11-29 07:09:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:28,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776333898] [2023-11-29 07:09:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:28,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650474820] [2023-11-29 07:09:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:28,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:28,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:28,753 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:28,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 07:09:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:28,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 07:09:28,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:29,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:29,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:29,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776333898] [2023-11-29 07:09:29,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:29,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650474820] [2023-11-29 07:09:29,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650474820] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:29,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:29,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:09:29,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902205769] [2023-11-29 07:09:29,630 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:29,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:09:29,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:29,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:09:29,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:09:29,631 INFO L87 Difference]: Start difference. First operand 1489 states and 2237 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:31,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:31,017 INFO L93 Difference]: Finished difference Result 1519 states and 2246 transitions. [2023-11-29 07:09:31,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:09:31,018 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 147 [2023-11-29 07:09:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:31,021 INFO L225 Difference]: With dead ends: 1519 [2023-11-29 07:09:31,021 INFO L226 Difference]: Without dead ends: 1518 [2023-11-29 07:09:31,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:09:31,022 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 108 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:31,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 785 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 07:09:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-29 07:09:31,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1489. [2023-11-29 07:09:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5387537993920972) internal successors, (2025), 1377 states have internal predecessors, (2025), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:09:31,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2233 transitions. [2023-11-29 07:09:31,121 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2233 transitions. Word has length 147 [2023-11-29 07:09:31,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:31,122 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2233 transitions. [2023-11-29 07:09:31,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:31,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2233 transitions. [2023-11-29 07:09:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 07:09:31,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:31,123 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:31,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 07:09:31,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:31,323 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:09:31,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1250944353, now seen corresponding path program 1 times [2023-11-29 07:09:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620116183] [2023-11-29 07:09:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:31,332 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:31,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1159284137] [2023-11-29 07:09:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:31,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:31,333 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:31,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 07:09:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:31,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 07:09:31,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:33,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:39,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620116183] [2023-11-29 07:09:39,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:39,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159284137] [2023-11-29 07:09:39,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159284137] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:39,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:39,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 07:09:39,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640115260] [2023-11-29 07:09:39,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:09:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:39,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:09:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:09:39,230 INFO L87 Difference]: Start difference. First operand 1489 states and 2233 transitions. Second operand has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 07:09:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:44,624 INFO L93 Difference]: Finished difference Result 1518 states and 2242 transitions. [2023-11-29 07:09:44,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:09:44,625 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 150 [2023-11-29 07:09:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:44,627 INFO L225 Difference]: With dead ends: 1518 [2023-11-29 07:09:44,627 INFO L226 Difference]: Without dead ends: 1517 [2023-11-29 07:09:44,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:09:44,628 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 538 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:44,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 672 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 07:09:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2023-11-29 07:09:44,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1489. [2023-11-29 07:09:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.5357142857142858) internal successors, (2021), 1377 states have internal predecessors, (2021), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:09:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2229 transitions. [2023-11-29 07:09:44,763 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2229 transitions. Word has length 150 [2023-11-29 07:09:44,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:44,763 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2229 transitions. [2023-11-29 07:09:44,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 07:09:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2229 transitions. [2023-11-29 07:09:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 07:09:44,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:44,764 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:44,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 07:09:44,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 07:09:44,965 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:09:44,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash 124569412, now seen corresponding path program 1 times [2023-11-29 07:09:44,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:44,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933150376] [2023-11-29 07:09:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:44,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:44,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:44,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891667601] [2023-11-29 07:09:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:44,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:44,976 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:44,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 07:09:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:45,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:09:45,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:45,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:45,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:45,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933150376] [2023-11-29 07:09:45,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:45,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891667601] [2023-11-29 07:09:45,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891667601] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:45,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:45,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:09:45,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830017700] [2023-11-29 07:09:45,579 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:45,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:09:45,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:45,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:09:45,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:09:45,580 INFO L87 Difference]: Start difference. First operand 1489 states and 2229 transitions. Second operand has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 07:09:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:49,164 INFO L93 Difference]: Finished difference Result 1570 states and 2265 transitions. [2023-11-29 07:09:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:09:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 151 [2023-11-29 07:09:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:49,166 INFO L225 Difference]: With dead ends: 1570 [2023-11-29 07:09:49,166 INFO L226 Difference]: Without dead ends: 1568 [2023-11-29 07:09:49,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:09:49,167 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 294 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:49,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 800 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 07:09:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2023-11-29 07:09:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1489. [2023-11-29 07:09:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1316 states have (on average 1.527355623100304) internal successors, (2010), 1377 states have internal predecessors, (2010), 104 states have call successors, (104), 9 states have call predecessors, (104), 9 states have return successors, (104), 102 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-29 07:09:49,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2218 transitions. [2023-11-29 07:09:49,297 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2218 transitions. Word has length 151 [2023-11-29 07:09:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:49,297 INFO L495 AbstractCegarLoop]: Abstraction has 1489 states and 2218 transitions. [2023-11-29 07:09:49,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 07:09:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2218 transitions. [2023-11-29 07:09:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 07:09:49,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:49,299 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:49,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 07:09:49,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 07:09:49,499 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:09:49,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash -433315389, now seen corresponding path program 1 times [2023-11-29 07:09:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:49,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085642758] [2023-11-29 07:09:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:49,509 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16881840] [2023-11-29 07:09:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:49,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:49,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:49,511 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:49,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 07:09:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:49,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:09:49,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:49,856 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:49,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:49,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:49,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085642758] [2023-11-29 07:09:49,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:49,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16881840] [2023-11-29 07:09:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16881840] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:49,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:09:49,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:09:49,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589801294] [2023-11-29 07:09:49,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:49,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:09:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:49,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:09:49,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:09:49,983 INFO L87 Difference]: Start difference. First operand 1489 states and 2218 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:52,416 INFO L93 Difference]: Finished difference Result 2209 states and 3226 transitions. [2023-11-29 07:09:52,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:09:52,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 152 [2023-11-29 07:09:52,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:52,419 INFO L225 Difference]: With dead ends: 2209 [2023-11-29 07:09:52,419 INFO L226 Difference]: Without dead ends: 2208 [2023-11-29 07:09:52,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:09:52,419 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 731 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:52,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 809 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 07:09:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-29 07:09:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1881. [2023-11-29 07:09:52,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1680 states have (on average 1.5660714285714286) internal successors, (2631), 1741 states have internal predecessors, (2631), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2023-11-29 07:09:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2895 transitions. [2023-11-29 07:09:52,531 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2895 transitions. Word has length 152 [2023-11-29 07:09:52,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:52,531 INFO L495 AbstractCegarLoop]: Abstraction has 1881 states and 2895 transitions. [2023-11-29 07:09:52,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:09:52,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2895 transitions. [2023-11-29 07:09:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 07:09:52,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:52,532 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:52,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 07:09:52,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:52,733 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:09:52,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:52,734 INFO L85 PathProgramCache]: Analyzing trace with hash -547875034, now seen corresponding path program 1 times [2023-11-29 07:09:52,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:52,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610286731] [2023-11-29 07:09:52,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:52,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:52,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:09:52,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779272099] [2023-11-29 07:09:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:52,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:52,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:52,769 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:52,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 07:09:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:52,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:09:52,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:53,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:09:54,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:54,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610286731] [2023-11-29 07:09:54,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:09:54,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779272099] [2023-11-29 07:09:54,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779272099] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:54,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:09:54,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 07:09:54,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485770701] [2023-11-29 07:09:54,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:54,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:09:54,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:09:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:09:54,444 INFO L87 Difference]: Start difference. First operand 1881 states and 2895 transitions. Second operand has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-29 07:10:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:31,522 INFO L93 Difference]: Finished difference Result 3865 states and 5630 transitions. [2023-11-29 07:10:31,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 07:10:31,522 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) Word has length 153 [2023-11-29 07:10:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:31,527 INFO L225 Difference]: With dead ends: 3865 [2023-11-29 07:10:31,527 INFO L226 Difference]: Without dead ends: 3864 [2023-11-29 07:10:31,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:10:31,528 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 2943 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2943 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:31,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2943 Valid, 1328 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 34.7s Time] [2023-11-29 07:10:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2023-11-29 07:10:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 1989. [2023-11-29 07:10:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5760808534531163) internal successors, (2807), 1842 states have internal predecessors, (2807), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 07:10:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3085 transitions. [2023-11-29 07:10:31,685 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3085 transitions. Word has length 153 [2023-11-29 07:10:31,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:31,685 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3085 transitions. [2023-11-29 07:10:31,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 17.25) internal successors, (207), 13 states have internal predecessors, (207), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-29 07:10:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3085 transitions. [2023-11-29 07:10:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 07:10:31,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:31,686 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:10:31,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 07:10:31,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2023-11-29 07:10:31,887 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:10:31,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 195743269, now seen corresponding path program 1 times [2023-11-29 07:10:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:31,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596006437] [2023-11-29 07:10:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:31,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:31,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:10:31,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329438158] [2023-11-29 07:10:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:31,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:31,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:31,896 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:31,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 07:10:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:31,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 07:10:31,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 21 proven. 56 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 07:10:34,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:34,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596006437] [2023-11-29 07:10:34,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:10:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329438158] [2023-11-29 07:10:34,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329438158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:34,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:10:34,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 07:10:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141123041] [2023-11-29 07:10:34,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:34,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:10:34,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:34,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:10:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:10:34,837 INFO L87 Difference]: Start difference. First operand 1989 states and 3085 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 07:10:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:42,365 INFO L93 Difference]: Finished difference Result 2018 states and 3098 transitions. [2023-11-29 07:10:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:10:42,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) Word has length 154 [2023-11-29 07:10:42,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:42,368 INFO L225 Difference]: With dead ends: 2018 [2023-11-29 07:10:42,368 INFO L226 Difference]: Without dead ends: 2014 [2023-11-29 07:10:42,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:10:42,368 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 246 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:42,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 546 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-29 07:10:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2023-11-29 07:10:42,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1989. [2023-11-29 07:10:42,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5670971364402022) internal successors, (2791), 1842 states have internal predecessors, (2791), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 07:10:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3069 transitions. [2023-11-29 07:10:42,507 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3069 transitions. Word has length 154 [2023-11-29 07:10:42,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:42,507 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3069 transitions. [2023-11-29 07:10:42,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 14 states have internal predecessors, (108), 7 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-11-29 07:10:42,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3069 transitions. [2023-11-29 07:10:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 07:10:42,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:42,508 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:10:42,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 07:10:42,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:42,708 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:10:42,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:42,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1773074184, now seen corresponding path program 1 times [2023-11-29 07:10:42,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:42,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485428982] [2023-11-29 07:10:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:42,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:42,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:10:42,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505991052] [2023-11-29 07:10:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:42,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:42,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:42,719 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:42,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 07:10:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:42,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:10:42,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 07:10:43,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:47,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:47,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485428982] [2023-11-29 07:10:47,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:10:47,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505991052] [2023-11-29 07:10:47,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505991052] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:47,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:10:47,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:10:47,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369886441] [2023-11-29 07:10:47,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:47,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:10:47,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:47,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:10:47,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:10:47,575 INFO L87 Difference]: Start difference. First operand 1989 states and 3069 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:10:51,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:51,797 INFO L93 Difference]: Finished difference Result 2002 states and 3070 transitions. [2023-11-29 07:10:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:10:51,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 155 [2023-11-29 07:10:51,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:51,800 INFO L225 Difference]: With dead ends: 2002 [2023-11-29 07:10:51,800 INFO L226 Difference]: Without dead ends: 2001 [2023-11-29 07:10:51,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=53, Invalid=186, Unknown=1, NotChecked=0, Total=240 [2023-11-29 07:10:51,801 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 384 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:51,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 656 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 07:10:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2023-11-29 07:10:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1989. [2023-11-29 07:10:51,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1781 states have (on average 1.5648512071869736) internal successors, (2787), 1842 states have internal predecessors, (2787), 139 states have call successors, (139), 9 states have call predecessors, (139), 9 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2023-11-29 07:10:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3065 transitions. [2023-11-29 07:10:51,935 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3065 transitions. Word has length 155 [2023-11-29 07:10:51,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:51,935 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3065 transitions. [2023-11-29 07:10:51,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:10:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3065 transitions. [2023-11-29 07:10:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 07:10:51,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:51,937 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:10:51,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 07:10:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2023-11-29 07:10:52,137 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:10:52,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:52,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1403646089, now seen corresponding path program 1 times [2023-11-29 07:10:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236018560] [2023-11-29 07:10:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:52,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:10:52,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825556288] [2023-11-29 07:10:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:52,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:52,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:52,146 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:52,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 07:10:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:52,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:10:52,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:52,516 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:10:52,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:10:52,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:52,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236018560] [2023-11-29 07:10:52,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:10:52,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825556288] [2023-11-29 07:10:52,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825556288] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:52,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:10:52,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 07:10:52,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33330653] [2023-11-29 07:10:52,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:52,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:10:52,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:52,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:10:52,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:10:52,705 INFO L87 Difference]: Start difference. First operand 1989 states and 3065 transitions. Second operand has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:10:54,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:54,962 INFO L93 Difference]: Finished difference Result 2077 states and 3146 transitions. [2023-11-29 07:10:54,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:10:54,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 159 [2023-11-29 07:10:54,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:54,965 INFO L225 Difference]: With dead ends: 2077 [2023-11-29 07:10:54,965 INFO L226 Difference]: Without dead ends: 2076 [2023-11-29 07:10:54,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=199, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:10:54,966 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 618 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:54,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 509 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:10:54,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2023-11-29 07:10:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2033. [2023-11-29 07:10:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.5535420098846788) internal successors, (2829), 1882 states have internal predecessors, (2829), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:10:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3115 transitions. [2023-11-29 07:10:55,116 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3115 transitions. Word has length 159 [2023-11-29 07:10:55,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:55,116 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3115 transitions. [2023-11-29 07:10:55,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 22.666666666666668) internal successors, (204), 10 states have internal predecessors, (204), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:10:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3115 transitions. [2023-11-29 07:10:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 07:10:55,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:55,117 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:10:55,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 07:10:55,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:55,318 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:10:55,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:55,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2081384140, now seen corresponding path program 1 times [2023-11-29 07:10:55,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:55,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429557256] [2023-11-29 07:10:55,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:55,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:55,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:10:55,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819480855] [2023-11-29 07:10:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:55,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:55,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:55,326 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:55,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 07:10:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:55,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:10:55,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 18 proven. 55 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 07:10:59,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429557256] [2023-11-29 07:10:59,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:10:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819480855] [2023-11-29 07:10:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819480855] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:59,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:10:59,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:10:59,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253919668] [2023-11-29 07:10:59,512 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:59,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:10:59,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:10:59,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:10:59,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:10:59,513 INFO L87 Difference]: Start difference. First operand 2033 states and 3115 transitions. Second operand has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:11:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:19,115 INFO L93 Difference]: Finished difference Result 2374 states and 3440 transitions. [2023-11-29 07:11:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 07:11:19,115 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 159 [2023-11-29 07:11:19,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:19,117 INFO L225 Difference]: With dead ends: 2374 [2023-11-29 07:11:19,118 INFO L226 Difference]: Without dead ends: 2370 [2023-11-29 07:11:19,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:11:19,118 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 706 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:19,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 897 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 18.0s Time] [2023-11-29 07:11:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2023-11-29 07:11:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2033. [2023-11-29 07:11:19,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.540362438220758) internal successors, (2805), 1882 states have internal predecessors, (2805), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:11:19,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3091 transitions. [2023-11-29 07:11:19,290 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3091 transitions. Word has length 159 [2023-11-29 07:11:19,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:19,290 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3091 transitions. [2023-11-29 07:11:19,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.666666666666666) internal successors, (116), 12 states have internal predecessors, (116), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:11:19,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3091 transitions. [2023-11-29 07:11:19,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-29 07:11:19,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:19,291 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:19,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 07:11:19,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:19,492 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:19,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1500360030, now seen corresponding path program 1 times [2023-11-29 07:11:19,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:19,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443830810] [2023-11-29 07:11:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:19,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:19,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:19,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92671251] [2023-11-29 07:11:19,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:19,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:19,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:19,500 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:19,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 07:11:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:19,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:11:19,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:19,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:19,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:19,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443830810] [2023-11-29 07:11:19,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:19,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92671251] [2023-11-29 07:11:19,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92671251] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:19,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:19,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 07:11:19,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197450354] [2023-11-29 07:11:19,963 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:19,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:11:19,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:19,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:11:19,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:11:19,964 INFO L87 Difference]: Start difference. First operand 2033 states and 3091 transitions. Second operand has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:20,293 INFO L93 Difference]: Finished difference Result 2040 states and 3091 transitions. [2023-11-29 07:11:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:11:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 164 [2023-11-29 07:11:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:20,296 INFO L225 Difference]: With dead ends: 2040 [2023-11-29 07:11:20,296 INFO L226 Difference]: Without dead ends: 2039 [2023-11-29 07:11:20,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:11:20,296 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 93 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:20,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 287 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:11:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2023-11-29 07:11:20,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2033. [2023-11-29 07:11:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1821 states have (on average 1.5398132894014278) internal successors, (2804), 1882 states have internal predecessors, (2804), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:11:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3090 transitions. [2023-11-29 07:11:20,453 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3090 transitions. Word has length 164 [2023-11-29 07:11:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:20,453 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 3090 transitions. [2023-11-29 07:11:20,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.5) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3090 transitions. [2023-11-29 07:11:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 07:11:20,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:20,454 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:20,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 07:11:20,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 07:11:20,654 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:20,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -725450462, now seen corresponding path program 2 times [2023-11-29 07:11:20,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:20,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516990049] [2023-11-29 07:11:20,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:20,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:20,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:20,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857981660] [2023-11-29 07:11:20,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:11:20,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:20,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:20,663 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:20,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 07:11:20,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:11:20,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:11:20,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:11:20,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 67 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 07:11:21,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:22,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:22,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516990049] [2023-11-29 07:11:22,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:22,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857981660] [2023-11-29 07:11:22,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857981660] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:22,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:11:22,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2023-11-29 07:11:22,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507796644] [2023-11-29 07:11:22,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:22,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 07:11:22,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:22,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 07:11:22,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:11:22,184 INFO L87 Difference]: Start difference. First operand 2033 states and 3090 transitions. Second operand has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:11:31,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:31,411 INFO L93 Difference]: Finished difference Result 2341 states and 3480 transitions. [2023-11-29 07:11:31,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 07:11:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) Word has length 167 [2023-11-29 07:11:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:31,414 INFO L225 Difference]: With dead ends: 2341 [2023-11-29 07:11:31,414 INFO L226 Difference]: Without dead ends: 2339 [2023-11-29 07:11:31,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=585, Invalid=1577, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 07:11:31,415 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1840 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:31,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 837 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-11-29 07:11:31,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2023-11-29 07:11:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2032. [2023-11-29 07:11:31,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1821 states have (on average 1.5260845689181768) internal successors, (2779), 1881 states have internal predecessors, (2779), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:11:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 3065 transitions. [2023-11-29 07:11:31,589 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 3065 transitions. Word has length 167 [2023-11-29 07:11:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:31,589 INFO L495 AbstractCegarLoop]: Abstraction has 2032 states and 3065 transitions. [2023-11-29 07:11:31,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 13.117647058823529) internal successors, (223), 18 states have internal predecessors, (223), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 10 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:11:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 3065 transitions. [2023-11-29 07:11:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 07:11:31,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:31,590 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:31,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 07:11:31,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 07:11:31,791 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:31,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1373189340, now seen corresponding path program 2 times [2023-11-29 07:11:31,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:31,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702509424] [2023-11-29 07:11:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:31,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:31,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2821536] [2023-11-29 07:11:31,799 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:11:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:31,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:31,800 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:31,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 07:11:31,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:11:31,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:11:31,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 07:11:31,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 15 proven. 80 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 07:11:32,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:36,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702509424] [2023-11-29 07:11:36,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2821536] [2023-11-29 07:11:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2821536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:36,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 07:11:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045995101] [2023-11-29 07:11:36,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:36,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:11:36,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:36,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:11:36,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=249, Unknown=1, NotChecked=0, Total=306 [2023-11-29 07:11:36,800 INFO L87 Difference]: Start difference. First operand 2032 states and 3065 transitions. Second operand has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 07:11:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:42,402 INFO L93 Difference]: Finished difference Result 2037 states and 3066 transitions. [2023-11-29 07:11:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:11:42,402 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 169 [2023-11-29 07:11:42,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:42,405 INFO L225 Difference]: With dead ends: 2037 [2023-11-29 07:11:42,405 INFO L226 Difference]: Without dead ends: 2036 [2023-11-29 07:11:42,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=132, Invalid=569, Unknown=1, NotChecked=0, Total=702 [2023-11-29 07:11:42,406 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 695 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:42,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 687 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 07:11:42,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2023-11-29 07:11:42,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2032. [2023-11-29 07:11:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2032 states, 1821 states have (on average 1.5255354200988467) internal successors, (2778), 1881 states have internal predecessors, (2778), 143 states have call successors, (143), 9 states have call predecessors, (143), 9 states have return successors, (143), 141 states have call predecessors, (143), 143 states have call successors, (143) [2023-11-29 07:11:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2032 states to 2032 states and 3064 transitions. [2023-11-29 07:11:42,575 INFO L78 Accepts]: Start accepts. Automaton has 2032 states and 3064 transitions. Word has length 169 [2023-11-29 07:11:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:42,576 INFO L495 AbstractCegarLoop]: Abstraction has 2032 states and 3064 transitions. [2023-11-29 07:11:42,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 5 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 07:11:42,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2032 states and 3064 transitions. [2023-11-29 07:11:42,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 07:11:42,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:42,577 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:42,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 07:11:42,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 07:11:42,777 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:42,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash -569685387, now seen corresponding path program 1 times [2023-11-29 07:11:42,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:42,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244064088] [2023-11-29 07:11:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:42,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:42,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535739461] [2023-11-29 07:11:42,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:42,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:42,787 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:42,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 07:11:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:42,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:11:42,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:42,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:11:42,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:42,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244064088] [2023-11-29 07:11:42,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:42,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535739461] [2023-11-29 07:11:42,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535739461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:11:42,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:11:42,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:11:42,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430218195] [2023-11-29 07:11:42,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:11:42,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:11:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:11:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:11:42,942 INFO L87 Difference]: Start difference. First operand 2032 states and 3064 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:11:43,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:43,319 INFO L93 Difference]: Finished difference Result 3712 states and 5708 transitions. [2023-11-29 07:11:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:11:43,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 169 [2023-11-29 07:11:43,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:43,323 INFO L225 Difference]: With dead ends: 3712 [2023-11-29 07:11:43,323 INFO L226 Difference]: Without dead ends: 2412 [2023-11-29 07:11:43,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:11:43,325 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 231 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:43,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 754 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:11:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2023-11-29 07:11:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1775. [2023-11-29 07:11:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1585 states have (on average 1.5123028391167193) internal successors, (2397), 1645 states have internal predecessors, (2397), 122 states have call successors, (122), 9 states have call predecessors, (122), 9 states have return successors, (122), 120 states have call predecessors, (122), 122 states have call successors, (122) [2023-11-29 07:11:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2641 transitions. [2023-11-29 07:11:43,479 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2641 transitions. Word has length 169 [2023-11-29 07:11:43,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:43,479 INFO L495 AbstractCegarLoop]: Abstraction has 1775 states and 2641 transitions. [2023-11-29 07:11:43,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:11:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2641 transitions. [2023-11-29 07:11:43,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 07:11:43,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:43,480 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:43,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 07:11:43,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 07:11:43,681 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:43,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash -755115917, now seen corresponding path program 1 times [2023-11-29 07:11:43,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:43,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782324610] [2023-11-29 07:11:43,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:43,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:43,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:43,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [988580225] [2023-11-29 07:11:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:43,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:43,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:43,693 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:43,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 07:11:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:43,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:11:43,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 07:11:43,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:44,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:44,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782324610] [2023-11-29 07:11:44,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:44,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988580225] [2023-11-29 07:11:44,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988580225] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:44,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:11:44,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 07:11:44,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206906092] [2023-11-29 07:11:44,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:44,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:11:44,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:44,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:11:44,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:11:44,143 INFO L87 Difference]: Start difference. First operand 1775 states and 2641 transitions. Second operand has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 07:11:44,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:44,612 INFO L93 Difference]: Finished difference Result 3312 states and 4978 transitions. [2023-11-29 07:11:44,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 07:11:44,613 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 172 [2023-11-29 07:11:44,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:44,615 INFO L225 Difference]: With dead ends: 3312 [2023-11-29 07:11:44,615 INFO L226 Difference]: Without dead ends: 2096 [2023-11-29 07:11:44,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 07:11:44,617 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 374 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:44,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1645 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:11:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2023-11-29 07:11:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1971. [2023-11-29 07:11:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1762 states have (on average 1.4909194097616345) internal successors, (2627), 1823 states have internal predecessors, (2627), 135 states have call successors, (135), 15 states have call predecessors, (135), 15 states have return successors, (135), 132 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-29 07:11:44,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 2897 transitions. [2023-11-29 07:11:44,799 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 2897 transitions. Word has length 172 [2023-11-29 07:11:44,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:44,799 INFO L495 AbstractCegarLoop]: Abstraction has 1971 states and 2897 transitions. [2023-11-29 07:11:44,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-29 07:11:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 2897 transitions. [2023-11-29 07:11:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 07:11:44,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:44,801 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:44,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 07:11:45,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:45,001 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:45,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1387928053, now seen corresponding path program 1 times [2023-11-29 07:11:45,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:45,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629508282] [2023-11-29 07:11:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:45,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:45,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912595387] [2023-11-29 07:11:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:45,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:45,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:45,012 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:45,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 07:11:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:45,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:11:45,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:46,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:46,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:46,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629508282] [2023-11-29 07:11:46,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:46,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912595387] [2023-11-29 07:11:46,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912595387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:46,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:46,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:11:46,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824963914] [2023-11-29 07:11:46,350 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:46,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:11:46,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:46,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:11:46,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:11:46,351 INFO L87 Difference]: Start difference. First operand 1971 states and 2897 transitions. Second operand has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:48,701 INFO L93 Difference]: Finished difference Result 2252 states and 3267 transitions. [2023-11-29 07:11:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:11:48,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 174 [2023-11-29 07:11:48,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:48,704 INFO L225 Difference]: With dead ends: 2252 [2023-11-29 07:11:48,704 INFO L226 Difference]: Without dead ends: 2250 [2023-11-29 07:11:48,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:11:48,704 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 309 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:48,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 624 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 07:11:48,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2023-11-29 07:11:48,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2000. [2023-11-29 07:11:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1789 states have (on average 1.4874231414197876) internal successors, (2661), 1850 states have internal predecessors, (2661), 137 states have call successors, (137), 15 states have call predecessors, (137), 15 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2023-11-29 07:11:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2935 transitions. [2023-11-29 07:11:48,881 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2935 transitions. Word has length 174 [2023-11-29 07:11:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:48,887 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 2935 transitions. [2023-11-29 07:11:48,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2935 transitions. [2023-11-29 07:11:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-29 07:11:48,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:48,888 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:48,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 07:11:49,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:49,089 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:49,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:49,089 INFO L85 PathProgramCache]: Analyzing trace with hash -76096485, now seen corresponding path program 1 times [2023-11-29 07:11:49,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:49,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282442567] [2023-11-29 07:11:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:49,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:49,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973061383] [2023-11-29 07:11:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:49,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:49,098 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:49,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 07:11:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:49,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:11:49,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:50,574 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:50,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:51,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282442567] [2023-11-29 07:11:51,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973061383] [2023-11-29 07:11:51,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973061383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:11:51,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:11:51,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:11:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464523551] [2023-11-29 07:11:51,565 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:51,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:11:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:11:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:11:51,566 INFO L87 Difference]: Start difference. First operand 2000 states and 2935 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:55,038 INFO L93 Difference]: Finished difference Result 2247 states and 3254 transitions. [2023-11-29 07:11:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:11:55,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 175 [2023-11-29 07:11:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:55,041 INFO L225 Difference]: With dead ends: 2247 [2023-11-29 07:11:55,041 INFO L226 Difference]: Without dead ends: 2244 [2023-11-29 07:11:55,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-11-29 07:11:55,041 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 300 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:55,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 729 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 07:11:55,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2023-11-29 07:11:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2162. [2023-11-29 07:11:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2162 states, 1939 states have (on average 1.481691593604951) internal successors, (2873), 2000 states have internal predecessors, (2873), 149 states have call successors, (149), 15 states have call predecessors, (149), 15 states have return successors, (149), 146 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-29 07:11:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2162 states to 2162 states and 3171 transitions. [2023-11-29 07:11:55,228 INFO L78 Accepts]: Start accepts. Automaton has 2162 states and 3171 transitions. Word has length 175 [2023-11-29 07:11:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:55,228 INFO L495 AbstractCegarLoop]: Abstraction has 2162 states and 3171 transitions. [2023-11-29 07:11:55,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:11:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2162 states and 3171 transitions. [2023-11-29 07:11:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 07:11:55,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:55,229 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:55,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 07:11:55,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:55,429 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:55,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1875855344, now seen corresponding path program 1 times [2023-11-29 07:11:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898823226] [2023-11-29 07:11:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:55,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919374362] [2023-11-29 07:11:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:55,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:55,439 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:55,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 07:11:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:55,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:11:55,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:55,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:11:55,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:11:55,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898823226] [2023-11-29 07:11:55,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:11:55,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919374362] [2023-11-29 07:11:55,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919374362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:55,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:11:55,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-11-29 07:11:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653328642] [2023-11-29 07:11:55,691 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:55,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:11:55,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:11:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:11:55,692 INFO L87 Difference]: Start difference. First operand 2162 states and 3171 transitions. Second operand has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:11:57,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:11:57,049 INFO L93 Difference]: Finished difference Result 2660 states and 3826 transitions. [2023-11-29 07:11:57,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:11:57,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 176 [2023-11-29 07:11:57,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:11:57,052 INFO L225 Difference]: With dead ends: 2660 [2023-11-29 07:11:57,052 INFO L226 Difference]: Without dead ends: 2658 [2023-11-29 07:11:57,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 346 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:11:57,052 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 604 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:11:57,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 925 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:11:57,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2023-11-29 07:11:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2463. [2023-11-29 07:11:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2216 states have (on average 1.5036101083032491) internal successors, (3332), 2277 states have internal predecessors, (3332), 173 states have call successors, (173), 15 states have call predecessors, (173), 15 states have return successors, (173), 170 states have call predecessors, (173), 173 states have call successors, (173) [2023-11-29 07:11:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3678 transitions. [2023-11-29 07:11:57,277 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3678 transitions. Word has length 176 [2023-11-29 07:11:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:11:57,278 INFO L495 AbstractCegarLoop]: Abstraction has 2463 states and 3678 transitions. [2023-11-29 07:11:57,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.333333333333332) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:11:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3678 transitions. [2023-11-29 07:11:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 07:11:57,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:11:57,279 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:11:57,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2023-11-29 07:11:57,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:57,479 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:11:57,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:11:57,479 INFO L85 PathProgramCache]: Analyzing trace with hash -114271651, now seen corresponding path program 1 times [2023-11-29 07:11:57,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:11:57,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689957196] [2023-11-29 07:11:57,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:57,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:11:57,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:11:57,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49837204] [2023-11-29 07:11:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:11:57,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:11:57,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:11:57,490 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:11:57,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 07:11:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:11:57,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 07:11:57,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:11:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 07:11:59,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 56 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-29 07:12:01,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:01,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689957196] [2023-11-29 07:12:01,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:12:01,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49837204] [2023-11-29 07:12:01,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49837204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:12:01,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:12:01,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-29 07:12:01,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152867997] [2023-11-29 07:12:01,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:01,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:12:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:01,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:12:01,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:12:01,776 INFO L87 Difference]: Start difference. First operand 2463 states and 3678 transitions. Second operand has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 07:12:12,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:12:15,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:12:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:35,497 INFO L93 Difference]: Finished difference Result 2808 states and 4036 transitions. [2023-11-29 07:12:35,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 07:12:35,497 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 177 [2023-11-29 07:12:35,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:35,501 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 07:12:35,501 INFO L226 Difference]: Without dead ends: 2806 [2023-11-29 07:12:35,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=682, Invalid=2978, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 07:12:35,502 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1590 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:35,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 892 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 26.3s Time] [2023-11-29 07:12:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-29 07:12:35,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2663. [2023-11-29 07:12:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2402 states have (on average 1.4929225645295587) internal successors, (3586), 2463 states have internal predecessors, (3586), 187 states have call successors, (187), 15 states have call predecessors, (187), 15 states have return successors, (187), 184 states have call predecessors, (187), 187 states have call successors, (187) [2023-11-29 07:12:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3960 transitions. [2023-11-29 07:12:35,817 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3960 transitions. Word has length 177 [2023-11-29 07:12:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:35,818 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 3960 transitions. [2023-11-29 07:12:35,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 11.090909090909092) internal successors, (244), 23 states have internal predecessors, (244), 9 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) [2023-11-29 07:12:35,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3960 transitions. [2023-11-29 07:12:35,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-29 07:12:35,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:35,819 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:35,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 07:12:36,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:36,020 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:12:36,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:36,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1189276110, now seen corresponding path program 1 times [2023-11-29 07:12:36,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:36,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796580458] [2023-11-29 07:12:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:36,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:36,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:12:36,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119025877] [2023-11-29 07:12:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:36,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:36,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:36,029 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:36,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 07:12:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:36,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:12:36,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:36,181 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:12:36,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:12:36,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:36,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796580458] [2023-11-29 07:12:36,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:12:36,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119025877] [2023-11-29 07:12:36,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119025877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:12:36,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:12:36,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:12:36,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973402452] [2023-11-29 07:12:36,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:12:36,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:12:36,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:36,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:12:36,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:12:36,183 INFO L87 Difference]: Start difference. First operand 2663 states and 3960 transitions. Second operand has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:12:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:40,923 INFO L93 Difference]: Finished difference Result 4702 states and 6948 transitions. [2023-11-29 07:12:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:12:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 178 [2023-11-29 07:12:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:40,928 INFO L225 Difference]: With dead ends: 4702 [2023-11-29 07:12:40,928 INFO L226 Difference]: Without dead ends: 4666 [2023-11-29 07:12:40,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:12:40,929 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 987 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:40,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1814 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 07:12:40,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2023-11-29 07:12:41,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3600. [2023-11-29 07:12:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3275 states have (on average 1.556946564885496) internal successors, (5099), 3336 states have internal predecessors, (5099), 251 states have call successors, (251), 15 states have call predecessors, (251), 15 states have return successors, (251), 248 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-29 07:12:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5601 transitions. [2023-11-29 07:12:41,352 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5601 transitions. Word has length 178 [2023-11-29 07:12:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:41,353 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5601 transitions. [2023-11-29 07:12:41,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 8 states have internal predecessors, (124), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:12:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5601 transitions. [2023-11-29 07:12:41,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 07:12:41,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:41,354 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:41,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 07:12:41,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:41,554 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:12:41,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1787146340, now seen corresponding path program 1 times [2023-11-29 07:12:41,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:41,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992354246] [2023-11-29 07:12:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:41,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:12:41,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006314545] [2023-11-29 07:12:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:41,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:41,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:41,565 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:41,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 07:12:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:41,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:12:41,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 13 proven. 53 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:12:41,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:42,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:42,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992354246] [2023-11-29 07:12:42,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:12:42,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006314545] [2023-11-29 07:12:42,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006314545] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:42,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:12:42,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:12:42,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930763094] [2023-11-29 07:12:42,172 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:42,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:12:42,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:12:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:12:42,173 INFO L87 Difference]: Start difference. First operand 3600 states and 5601 transitions. Second operand has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:12:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:44,107 INFO L93 Difference]: Finished difference Result 4118 states and 6281 transitions. [2023-11-29 07:12:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:12:44,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 179 [2023-11-29 07:12:44,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:44,111 INFO L225 Difference]: With dead ends: 4118 [2023-11-29 07:12:44,111 INFO L226 Difference]: Without dead ends: 4115 [2023-11-29 07:12:44,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2023-11-29 07:12:44,112 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1084 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:44,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 890 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:12:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2023-11-29 07:12:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3872. [2023-11-29 07:12:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3527 states have (on average 1.5653529912106605) internal successors, (5521), 3588 states have internal predecessors, (5521), 271 states have call successors, (271), 15 states have call predecessors, (271), 15 states have return successors, (271), 268 states have call predecessors, (271), 271 states have call successors, (271) [2023-11-29 07:12:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 6063 transitions. [2023-11-29 07:12:44,609 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 6063 transitions. Word has length 179 [2023-11-29 07:12:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:44,609 INFO L495 AbstractCegarLoop]: Abstraction has 3872 states and 6063 transitions. [2023-11-29 07:12:44,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.625) internal successors, (125), 9 states have internal predecessors, (125), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 07:12:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 6063 transitions. [2023-11-29 07:12:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 07:12:44,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:44,611 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:44,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 07:12:44,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2023-11-29 07:12:44,811 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:12:44,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:44,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1277918308, now seen corresponding path program 2 times [2023-11-29 07:12:44,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:44,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968396752] [2023-11-29 07:12:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:44,819 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:12:44,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37502516] [2023-11-29 07:12:44,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:12:44,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:44,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:44,820 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:44,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 07:12:44,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:12:44,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:12:44,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:12:44,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 07:12:45,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:53,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:53,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968396752] [2023-11-29 07:12:53,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:12:53,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37502516] [2023-11-29 07:12:53,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37502516] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:53,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:12:53,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:12:53,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032046449] [2023-11-29 07:12:53,222 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:53,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:12:53,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:53,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:12:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=85, Unknown=2, NotChecked=0, Total=110 [2023-11-29 07:12:53,223 INFO L87 Difference]: Start difference. First operand 3872 states and 6063 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:12:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:56,676 INFO L93 Difference]: Finished difference Result 5155 states and 8045 transitions. [2023-11-29 07:12:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:12:56,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 179 [2023-11-29 07:12:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:56,680 INFO L225 Difference]: With dead ends: 5155 [2023-11-29 07:12:56,681 INFO L226 Difference]: Without dead ends: 5148 [2023-11-29 07:12:56,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=119, Invalid=299, Unknown=2, NotChecked=0, Total=420 [2023-11-29 07:12:56,681 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 870 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:56,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 845 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 07:12:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2023-11-29 07:12:57,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 4392. [2023-11-29 07:12:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 4015 states have (on average 1.5628891656288917) internal successors, (6275), 4076 states have internal predecessors, (6275), 303 states have call successors, (303), 15 states have call predecessors, (303), 15 states have return successors, (303), 300 states have call predecessors, (303), 303 states have call successors, (303) [2023-11-29 07:12:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6881 transitions. [2023-11-29 07:12:57,171 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6881 transitions. Word has length 179 [2023-11-29 07:12:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:57,171 INFO L495 AbstractCegarLoop]: Abstraction has 4392 states and 6881 transitions. [2023-11-29 07:12:57,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 8 states have internal predecessors, (125), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:12:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6881 transitions. [2023-11-29 07:12:57,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 07:12:57,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:57,172 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:12:57,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2023-11-29 07:12:57,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:57,373 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:12:57,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:57,373 INFO L85 PathProgramCache]: Analyzing trace with hash -203191728, now seen corresponding path program 1 times [2023-11-29 07:12:57,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:12:57,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733035076] [2023-11-29 07:12:57,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:57,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:12:57,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:12:57,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [317938672] [2023-11-29 07:12:57,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:57,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:12:57,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:12:57,385 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:12:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 07:12:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:57,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:12:57,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 07:12:58,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:58,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:12:58,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733035076] [2023-11-29 07:12:58,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:12:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317938672] [2023-11-29 07:12:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317938672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:58,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:12:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:12:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595165201] [2023-11-29 07:12:58,139 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:12:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:12:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:12:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:12:58,140 INFO L87 Difference]: Start difference. First operand 4392 states and 6881 transitions. Second operand has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:13:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:00,542 INFO L93 Difference]: Finished difference Result 4460 states and 6931 transitions. [2023-11-29 07:13:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:00,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 185 [2023-11-29 07:13:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:00,546 INFO L225 Difference]: With dead ends: 4460 [2023-11-29 07:13:00,547 INFO L226 Difference]: Without dead ends: 4458 [2023-11-29 07:13:00,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:13:00,547 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 269 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:00,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 614 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 07:13:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2023-11-29 07:13:01,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4401. [2023-11-29 07:13:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 4022 states have (on average 1.5614122327200397) internal successors, (6280), 4084 states have internal predecessors, (6280), 305 states have call successors, (305), 15 states have call predecessors, (305), 15 states have return successors, (305), 301 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 07:13:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 6890 transitions. [2023-11-29 07:13:01,083 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 6890 transitions. Word has length 185 [2023-11-29 07:13:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:01,084 INFO L495 AbstractCegarLoop]: Abstraction has 4401 states and 6890 transitions. [2023-11-29 07:13:01,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.0) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:13:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 6890 transitions. [2023-11-29 07:13:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 07:13:01,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:01,085 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:01,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2023-11-29 07:13:01,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 07:13:01,285 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:13:01,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:01,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2003976061, now seen corresponding path program 1 times [2023-11-29 07:13:01,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:01,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606702029] [2023-11-29 07:13:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:01,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:01,295 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:01,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994074750] [2023-11-29 07:13:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:01,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:01,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:01,296 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:01,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 07:13:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:01,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:13:01,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-29 07:13:01,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:02,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606702029] [2023-11-29 07:13:02,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994074750] [2023-11-29 07:13:02,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994074750] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:02,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:13:02,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:13:02,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712099417] [2023-11-29 07:13:02,455 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:02,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:13:02,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:02,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:13:02,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:13:02,456 INFO L87 Difference]: Start difference. First operand 4401 states and 6890 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:13:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:05,697 INFO L93 Difference]: Finished difference Result 4458 states and 6927 transitions. [2023-11-29 07:13:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:13:05,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 186 [2023-11-29 07:13:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:05,703 INFO L225 Difference]: With dead ends: 4458 [2023-11-29 07:13:05,703 INFO L226 Difference]: Without dead ends: 4456 [2023-11-29 07:13:05,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:13:05,705 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 262 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:05,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 636 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 07:13:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2023-11-29 07:13:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4402. [2023-11-29 07:13:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 4023 states have (on average 1.5605269699229432) internal successors, (6278), 4085 states have internal predecessors, (6278), 305 states have call successors, (305), 15 states have call predecessors, (305), 15 states have return successors, (305), 301 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-29 07:13:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 6888 transitions. [2023-11-29 07:13:06,242 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 6888 transitions. Word has length 186 [2023-11-29 07:13:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:06,243 INFO L495 AbstractCegarLoop]: Abstraction has 4402 states and 6888 transitions. [2023-11-29 07:13:06,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 8 states have internal predecessors, (127), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:13:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 6888 transitions. [2023-11-29 07:13:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 07:13:06,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:06,244 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:06,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 07:13:06,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:06,444 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:13:06,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:06,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1993715534, now seen corresponding path program 1 times [2023-11-29 07:13:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:06,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946595259] [2023-11-29 07:13:06,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:06,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:06,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:06,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199551340] [2023-11-29 07:13:06,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:06,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:06,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:06,461 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:06,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 07:13:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:06,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 07:13:06,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 51 proven. 23 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 07:13:09,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 34 proven. 40 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 07:13:10,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946595259] [2023-11-29 07:13:10,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199551340] [2023-11-29 07:13:10,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199551340] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:13:10,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:13:10,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-11-29 07:13:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079563631] [2023-11-29 07:13:10,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:10,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:13:10,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:10,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:13:10,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:13:10,205 INFO L87 Difference]: Start difference. First operand 4402 states and 6888 transitions. Second operand has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:13:28,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:28,403 INFO L93 Difference]: Finished difference Result 4521 states and 6955 transitions. [2023-11-29 07:13:28,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 07:13:28,404 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 187 [2023-11-29 07:13:28,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:28,409 INFO L225 Difference]: With dead ends: 4521 [2023-11-29 07:13:28,409 INFO L226 Difference]: Without dead ends: 4496 [2023-11-29 07:13:28,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:13:28,411 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 760 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 2120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:28,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 745 Invalid, 2120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-11-29 07:13:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2023-11-29 07:13:28,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4397. [2023-11-29 07:13:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4020 states have (on average 1.5472636815920398) internal successors, (6220), 4081 states have internal predecessors, (6220), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:13:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 6828 transitions. [2023-11-29 07:13:28,948 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 6828 transitions. Word has length 187 [2023-11-29 07:13:28,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:28,949 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 6828 transitions. [2023-11-29 07:13:28,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 14.941176470588236) internal successors, (254), 18 states have internal predecessors, (254), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 07:13:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 6828 transitions. [2023-11-29 07:13:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 07:13:28,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:28,950 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:28,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 07:13:29,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:29,151 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:13:29,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:29,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1704333064, now seen corresponding path program 1 times [2023-11-29 07:13:29,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:29,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117538131] [2023-11-29 07:13:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:29,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:29,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:29,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741809104] [2023-11-29 07:13:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:29,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:29,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:29,162 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:29,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 07:13:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:29,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:13:29,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 45 proven. 49 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-29 07:13:30,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:30,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:30,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117538131] [2023-11-29 07:13:30,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:30,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741809104] [2023-11-29 07:13:30,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741809104] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:30,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:13:30,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:13:30,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392100181] [2023-11-29 07:13:30,432 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:30,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:13:30,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:30,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:13:30,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:13:30,433 INFO L87 Difference]: Start difference. First operand 4397 states and 6828 transitions. Second operand has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 07:13:34,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:13:34,188 INFO L93 Difference]: Finished difference Result 4470 states and 6892 transitions. [2023-11-29 07:13:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:13:34,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 201 [2023-11-29 07:13:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:13:34,193 INFO L225 Difference]: With dead ends: 4470 [2023-11-29 07:13:34,193 INFO L226 Difference]: Without dead ends: 4465 [2023-11-29 07:13:34,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:13:34,194 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 177 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:13:34,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 756 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 07:13:34,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2023-11-29 07:13:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4391. [2023-11-29 07:13:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.547085201793722) internal successors, (6210), 4075 states have internal predecessors, (6210), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:13:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6818 transitions. [2023-11-29 07:13:34,732 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6818 transitions. Word has length 201 [2023-11-29 07:13:34,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:13:34,732 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6818 transitions. [2023-11-29 07:13:34,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.7) internal successors, (137), 11 states have internal predecessors, (137), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 07:13:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6818 transitions. [2023-11-29 07:13:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 07:13:34,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:13:34,734 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:13:34,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 07:13:34,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:34,934 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:13:34,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:13:34,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1048942855, now seen corresponding path program 1 times [2023-11-29 07:13:34,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:13:34,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609500440] [2023-11-29 07:13:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:34,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:13:34,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:13:34,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674121050] [2023-11-29 07:13:34,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:13:34,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:13:34,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:13:34,946 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:13:34,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 07:13:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:13:35,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 07:13:35,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:13:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 6 proven. 101 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:13:41,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:13:41,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:13:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609500440] [2023-11-29 07:13:41,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:13:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674121050] [2023-11-29 07:13:41,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674121050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:13:41,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:13:41,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 07:13:41,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389351659] [2023-11-29 07:13:41,706 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:13:41,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 07:13:41,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:13:41,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 07:13:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=294, Unknown=1, NotChecked=0, Total=342 [2023-11-29 07:13:41,707 INFO L87 Difference]: Start difference. First operand 4391 states and 6818 transitions. Second operand has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 07:13:51,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:13:57,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:01,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:06,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:08,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:12,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:14,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:19,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:23,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:28,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:14:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:32,932 INFO L93 Difference]: Finished difference Result 4420 states and 6827 transitions. [2023-11-29 07:14:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:14:32,933 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 207 [2023-11-29 07:14:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:32,937 INFO L225 Difference]: With dead ends: 4420 [2023-11-29 07:14:32,937 INFO L226 Difference]: Without dead ends: 4419 [2023-11-29 07:14:32,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=133, Invalid=678, Unknown=1, NotChecked=0, Total=812 [2023-11-29 07:14:32,938 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 517 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 30 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:32,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 994 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2329 Invalid, 8 Unknown, 0 Unchecked, 43.5s Time] [2023-11-29 07:14:32,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4419 states. [2023-11-29 07:14:33,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4419 to 4391. [2023-11-29 07:14:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.5460886895864474) internal successors, (6206), 4075 states have internal predecessors, (6206), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:14:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6814 transitions. [2023-11-29 07:14:33,473 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6814 transitions. Word has length 207 [2023-11-29 07:14:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:33,473 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6814 transitions. [2023-11-29 07:14:33,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.071428571428571) internal successors, (141), 15 states have internal predecessors, (141), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 07:14:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6814 transitions. [2023-11-29 07:14:33,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 07:14:33,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:33,474 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:33,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 07:14:33,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:33,675 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:14:33,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:33,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1283227159, now seen corresponding path program 1 times [2023-11-29 07:14:33,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:33,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469575736] [2023-11-29 07:14:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:33,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:33,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:33,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314503901] [2023-11-29 07:14:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:33,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:33,686 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:33,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 07:14:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:33,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 07:14:33,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 9 proven. 102 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:14:34,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:37,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:37,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469575736] [2023-11-29 07:14:37,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:37,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314503901] [2023-11-29 07:14:37,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314503901] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:37,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:37,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 07:14:37,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044701189] [2023-11-29 07:14:37,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:37,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:14:37,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:37,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:14:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=192, Unknown=1, NotChecked=0, Total=240 [2023-11-29 07:14:37,307 INFO L87 Difference]: Start difference. First operand 4391 states and 6814 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:14:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:38,879 INFO L93 Difference]: Finished difference Result 4427 states and 6831 transitions. [2023-11-29 07:14:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:14:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 209 [2023-11-29 07:14:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:38,884 INFO L225 Difference]: With dead ends: 4427 [2023-11-29 07:14:38,884 INFO L226 Difference]: Without dead ends: 4426 [2023-11-29 07:14:38,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 07:14:38,885 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 131 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:38,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1153 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 07:14:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4426 states. [2023-11-29 07:14:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4426 to 4391. [2023-11-29 07:14:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.5450921773791728) internal successors, (6202), 4075 states have internal predecessors, (6202), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:14:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6810 transitions. [2023-11-29 07:14:39,485 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6810 transitions. Word has length 209 [2023-11-29 07:14:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:39,485 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6810 transitions. [2023-11-29 07:14:39,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:14:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6810 transitions. [2023-11-29 07:14:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 07:14:39,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:39,486 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:39,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 07:14:39,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable93 [2023-11-29 07:14:39,687 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:14:39,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:39,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1125336144, now seen corresponding path program 1 times [2023-11-29 07:14:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:39,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319567017] [2023-11-29 07:14:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:39,697 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:39,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210282172] [2023-11-29 07:14:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:39,698 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:39,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 07:14:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:39,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:14:39,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 45 proven. 59 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:14:41,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:42,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319567017] [2023-11-29 07:14:42,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210282172] [2023-11-29 07:14:42,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210282172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:42,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:42,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:14:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592577957] [2023-11-29 07:14:42,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:42,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:14:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:14:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:14:42,483 INFO L87 Difference]: Start difference. First operand 4391 states and 6810 transitions. Second operand has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:14:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:14:46,051 INFO L93 Difference]: Finished difference Result 4460 states and 6874 transitions. [2023-11-29 07:14:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:14:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 210 [2023-11-29 07:14:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:14:46,055 INFO L225 Difference]: With dead ends: 4460 [2023-11-29 07:14:46,055 INFO L226 Difference]: Without dead ends: 4459 [2023-11-29 07:14:46,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:14:46,056 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 147 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:14:46,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 781 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 07:14:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2023-11-29 07:14:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 4391. [2023-11-29 07:14:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.5426008968609866) internal successors, (6192), 4075 states have internal predecessors, (6192), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:14:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6800 transitions. [2023-11-29 07:14:46,586 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6800 transitions. Word has length 210 [2023-11-29 07:14:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:14:46,586 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6800 transitions. [2023-11-29 07:14:46,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:14:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6800 transitions. [2023-11-29 07:14:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 07:14:46,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:14:46,588 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:14:46,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 07:14:46,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2023-11-29 07:14:46,788 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:14:46,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:14:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash -525681973, now seen corresponding path program 1 times [2023-11-29 07:14:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:14:46,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858154264] [2023-11-29 07:14:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:46,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:14:46,799 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:14:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359785839] [2023-11-29 07:14:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:14:46,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:14:46,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:14:46,800 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:14:46,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 07:14:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:46,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:14:46,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 61 refuted. 45 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:14:53,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:53,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:14:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858154264] [2023-11-29 07:14:53,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:14:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359785839] [2023-11-29 07:14:53,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359785839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:53,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:14:53,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:14:53,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774501473] [2023-11-29 07:14:53,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:53,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:14:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:14:53,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:14:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=149, Unknown=2, NotChecked=0, Total=182 [2023-11-29 07:14:53,564 INFO L87 Difference]: Start difference. First operand 4391 states and 6800 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:00,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:04,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:08,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:13,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:16,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:20,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:15:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:25,116 INFO L93 Difference]: Finished difference Result 4417 states and 6809 transitions. [2023-11-29 07:15:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:15:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 211 [2023-11-29 07:15:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:25,121 INFO L225 Difference]: With dead ends: 4417 [2023-11-29 07:15:25,121 INFO L226 Difference]: Without dead ends: 4416 [2023-11-29 07:15:25,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=74, Invalid=303, Unknown=3, NotChecked=0, Total=380 [2023-11-29 07:15:25,122 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 403 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 28 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:25,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 966 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1807 Invalid, 3 Unknown, 0 Unchecked, 26.6s Time] [2023-11-29 07:15:25,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2023-11-29 07:15:25,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 4391. [2023-11-29 07:15:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.541604384653712) internal successors, (6188), 4075 states have internal predecessors, (6188), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:15:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6796 transitions. [2023-11-29 07:15:25,660 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6796 transitions. Word has length 211 [2023-11-29 07:15:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:25,660 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6796 transitions. [2023-11-29 07:15:25,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6796 transitions. [2023-11-29 07:15:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 07:15:25,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:25,661 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:25,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 07:15:25,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:25,862 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:15:25,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash 883728146, now seen corresponding path program 1 times [2023-11-29 07:15:25,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:25,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222669594] [2023-11-29 07:15:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:25,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:25,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:25,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499524393] [2023-11-29 07:15:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:25,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:25,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:25,872 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:25,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 07:15:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:25,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:15:25,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 45 proven. 63 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:15:27,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:27,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:27,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222669594] [2023-11-29 07:15:27,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:27,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499524393] [2023-11-29 07:15:27,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499524393] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:27,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:27,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:15:27,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079626895] [2023-11-29 07:15:27,841 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:27,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:15:27,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:15:27,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:15:27,842 INFO L87 Difference]: Start difference. First operand 4391 states and 6796 transitions. Second operand has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:32,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:32,263 INFO L93 Difference]: Finished difference Result 4461 states and 6860 transitions. [2023-11-29 07:15:32,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:15:32,264 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 212 [2023-11-29 07:15:32,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:32,268 INFO L225 Difference]: With dead ends: 4461 [2023-11-29 07:15:32,268 INFO L226 Difference]: Without dead ends: 4460 [2023-11-29 07:15:32,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:15:32,269 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 195 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:32,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1107 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 07:15:32,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2023-11-29 07:15:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 4391. [2023-11-29 07:15:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.540857000498256) internal successors, (6185), 4075 states have internal predecessors, (6185), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:15:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6793 transitions. [2023-11-29 07:15:32,812 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6793 transitions. Word has length 212 [2023-11-29 07:15:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:32,812 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6793 transitions. [2023-11-29 07:15:32,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.0) internal successors, (143), 12 states have internal predecessors, (143), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6793 transitions. [2023-11-29 07:15:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-29 07:15:32,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:32,813 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:32,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 07:15:33,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2023-11-29 07:15:33,014 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:15:33,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1004200817, now seen corresponding path program 1 times [2023-11-29 07:15:33,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:33,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862944409] [2023-11-29 07:15:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:33,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:33,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:33,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344719898] [2023-11-29 07:15:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:33,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:33,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:33,025 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:33,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 07:15:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:33,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 07:15:33,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 9 proven. 114 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 07:15:38,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862944409] [2023-11-29 07:15:45,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344719898] [2023-11-29 07:15:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344719898] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:45,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 07:15:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695674697] [2023-11-29 07:15:45,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:45,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:15:45,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:15:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:15:45,385 INFO L87 Difference]: Start difference. First operand 4391 states and 6793 transitions. Second operand has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:51,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:51,631 INFO L93 Difference]: Finished difference Result 4415 states and 6802 transitions. [2023-11-29 07:15:51,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:15:51,631 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 215 [2023-11-29 07:15:51,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:51,635 INFO L225 Difference]: With dead ends: 4415 [2023-11-29 07:15:51,635 INFO L226 Difference]: Without dead ends: 4414 [2023-11-29 07:15:51,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 07:15:51,636 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 609 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 2706 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:51,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 915 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2706 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 07:15:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2023-11-29 07:15:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 4391. [2023-11-29 07:15:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4014 states have (on average 1.5398604882909817) internal successors, (6181), 4075 states have internal predecessors, (6181), 304 states have call successors, (304), 14 states have call predecessors, (304), 14 states have return successors, (304), 301 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-29 07:15:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 6789 transitions. [2023-11-29 07:15:52,168 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 6789 transitions. Word has length 215 [2023-11-29 07:15:52,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:52,168 INFO L495 AbstractCegarLoop]: Abstraction has 4391 states and 6789 transitions. [2023-11-29 07:15:52,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 9.933333333333334) internal successors, (149), 16 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:15:52,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 6789 transitions. [2023-11-29 07:15:52,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 07:15:52,169 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:52,170 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:52,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 07:15:52,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:52,370 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:15:52,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1330660721, now seen corresponding path program 1 times [2023-11-29 07:15:52,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:52,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984516722] [2023-11-29 07:15:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:52,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:52,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:52,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254449385] [2023-11-29 07:15:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:52,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:52,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:52,391 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:52,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 07:15:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:52,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:15:52,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 45 proven. 73 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:15:52,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984516722] [2023-11-29 07:15:52,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254449385] [2023-11-29 07:15:52,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254449385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:52,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:52,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:15:52,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857811854] [2023-11-29 07:15:52,953 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:52,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:15:52,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:52,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:15:52,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:15:52,954 INFO L87 Difference]: Start difference. First operand 4391 states and 6789 transitions. Second operand has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:15:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:56,628 INFO L93 Difference]: Finished difference Result 5446 states and 8313 transitions. [2023-11-29 07:15:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:15:56,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 217 [2023-11-29 07:15:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:56,634 INFO L225 Difference]: With dead ends: 5446 [2023-11-29 07:15:56,634 INFO L226 Difference]: Without dead ends: 5445 [2023-11-29 07:15:56,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 07:15:56,635 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 440 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:56,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1102 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 07:15:56,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2023-11-29 07:15:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 5243. [2023-11-29 07:15:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 4802 states have (on average 1.5508121615993335) internal successors, (7447), 4863 states have internal predecessors, (7447), 368 states have call successors, (368), 14 states have call predecessors, (368), 14 states have return successors, (368), 365 states have call predecessors, (368), 368 states have call successors, (368) [2023-11-29 07:15:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 8183 transitions. [2023-11-29 07:15:57,272 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 8183 transitions. Word has length 217 [2023-11-29 07:15:57,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:57,273 INFO L495 AbstractCegarLoop]: Abstraction has 5243 states and 8183 transitions. [2023-11-29 07:15:57,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 8 states have internal predecessors, (148), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:15:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 8183 transitions. [2023-11-29 07:15:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-29 07:15:57,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:57,274 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:15:57,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2023-11-29 07:15:57,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 07:15:57,474 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:15:57,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1699190472, now seen corresponding path program 1 times [2023-11-29 07:15:57,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:15:57,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253709314] [2023-11-29 07:15:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:15:57,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:15:57,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545764438] [2023-11-29 07:15:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:57,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:15:57,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:15:57,484 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:15:57,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 07:15:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:57,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:15:57,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:15:58,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:15:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253709314] [2023-11-29 07:15:59,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:15:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545764438] [2023-11-29 07:15:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545764438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:59,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:15:59,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:15:59,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120810671] [2023-11-29 07:15:59,087 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:59,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:15:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:15:59,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:15:59,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:15:59,088 INFO L87 Difference]: Start difference. First operand 5243 states and 8183 transitions. Second operand has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:16:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:03,994 INFO L93 Difference]: Finished difference Result 5599 states and 8609 transitions. [2023-11-29 07:16:03,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:16:03,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 218 [2023-11-29 07:16:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:04,013 INFO L225 Difference]: With dead ends: 5599 [2023-11-29 07:16:04,013 INFO L226 Difference]: Without dead ends: 5598 [2023-11-29 07:16:04,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:16:04,014 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 859 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:04,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 785 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 07:16:04,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5598 states. [2023-11-29 07:16:04,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5598 to 5365. [2023-11-29 07:16:04,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.5530919446704639) internal successors, (7635), 4977 states have internal predecessors, (7635), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8387 transitions. [2023-11-29 07:16:04,665 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8387 transitions. Word has length 218 [2023-11-29 07:16:04,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:04,666 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8387 transitions. [2023-11-29 07:16:04,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.625) internal successors, (149), 9 states have internal predecessors, (149), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:16:04,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8387 transitions. [2023-11-29 07:16:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 07:16:04,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:04,667 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:04,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 07:16:04,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 07:16:04,867 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:04,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1135296941, now seen corresponding path program 1 times [2023-11-29 07:16:04,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:04,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217596809] [2023-11-29 07:16:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:04,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:04,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301992603] [2023-11-29 07:16:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:04,878 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:04,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 07:16:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:04,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-29 07:16:04,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:08,377 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 54 proven. 158 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-29 07:16:08,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:09,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217596809] [2023-11-29 07:16:09,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301992603] [2023-11-29 07:16:09,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301992603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:09,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:09,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 07:16:09,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257567487] [2023-11-29 07:16:09,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:09,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:16:09,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:16:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-29 07:16:09,980 INFO L87 Difference]: Start difference. First operand 5365 states and 8387 transitions. Second operand has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 07:16:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:12,633 INFO L93 Difference]: Finished difference Result 5390 states and 8400 transitions. [2023-11-29 07:16:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:16:12,634 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) Word has length 219 [2023-11-29 07:16:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:12,639 INFO L225 Difference]: With dead ends: 5390 [2023-11-29 07:16:12,640 INFO L226 Difference]: Without dead ends: 5387 [2023-11-29 07:16:12,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:16:12,641 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 166 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:12,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 696 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 07:16:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5387 states. [2023-11-29 07:16:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5387 to 5365. [2023-11-29 07:16:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.5506509357200977) internal successors, (7623), 4977 states have internal predecessors, (7623), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:13,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8375 transitions. [2023-11-29 07:16:13,301 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8375 transitions. Word has length 219 [2023-11-29 07:16:13,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:13,301 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8375 transitions. [2023-11-29 07:16:13,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 10.2) internal successors, (153), 16 states have internal predecessors, (153), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 8 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 07:16:13,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8375 transitions. [2023-11-29 07:16:13,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 07:16:13,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:13,302 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:13,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2023-11-29 07:16:13,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 07:16:13,502 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:13,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:13,503 INFO L85 PathProgramCache]: Analyzing trace with hash -834466662, now seen corresponding path program 1 times [2023-11-29 07:16:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:13,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060459036] [2023-11-29 07:16:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:13,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:13,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991824011] [2023-11-29 07:16:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:13,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:13,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:13,514 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:13,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 07:16:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:13,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:16:13,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 45 proven. 79 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:16:13,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:14,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:14,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060459036] [2023-11-29 07:16:14,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:14,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991824011] [2023-11-29 07:16:14,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991824011] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:14,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:14,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:16:14,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024042689] [2023-11-29 07:16:14,138 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:14,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:16:14,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:16:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:16:14,139 INFO L87 Difference]: Start difference. First operand 5365 states and 8375 transitions. Second operand has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:16:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:19,600 INFO L93 Difference]: Finished difference Result 5578 states and 8479 transitions. [2023-11-29 07:16:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:16:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 220 [2023-11-29 07:16:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:19,606 INFO L225 Difference]: With dead ends: 5578 [2023-11-29 07:16:19,606 INFO L226 Difference]: Without dead ends: 5576 [2023-11-29 07:16:19,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2023-11-29 07:16:19,607 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 514 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:19,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1095 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 07:16:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5576 states. [2023-11-29 07:16:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5576 to 5365. [2023-11-29 07:16:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.5423108218063466) internal successors, (7582), 4977 states have internal predecessors, (7582), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8334 transitions. [2023-11-29 07:16:20,281 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8334 transitions. Word has length 220 [2023-11-29 07:16:20,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:20,281 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8334 transitions. [2023-11-29 07:16:20,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.875) internal successors, (151), 9 states have internal predecessors, (151), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:16:20,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8334 transitions. [2023-11-29 07:16:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-11-29 07:16:20,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:20,282 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:20,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 07:16:20,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 07:16:20,483 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:20,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -325476329, now seen corresponding path program 1 times [2023-11-29 07:16:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139675903] [2023-11-29 07:16:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:20,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:20,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160025421] [2023-11-29 07:16:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:20,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:20,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:20,498 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:20,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 07:16:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:20,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:16:20,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:23,913 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 45 proven. 85 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 07:16:23,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:26,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139675903] [2023-11-29 07:16:26,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:26,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160025421] [2023-11-29 07:16:26,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160025421] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:26,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:26,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 07:16:26,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846745410] [2023-11-29 07:16:26,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:26,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 07:16:26,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:26,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 07:16:26,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:16:26,130 INFO L87 Difference]: Start difference. First operand 5365 states and 8334 transitions. Second operand has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:16:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:33,171 INFO L93 Difference]: Finished difference Result 5435 states and 8398 transitions. [2023-11-29 07:16:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:16:33,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 223 [2023-11-29 07:16:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:33,177 INFO L225 Difference]: With dead ends: 5435 [2023-11-29 07:16:33,177 INFO L226 Difference]: Without dead ends: 5433 [2023-11-29 07:16:33,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:16:33,178 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 128 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:33,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 858 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-11-29 07:16:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2023-11-29 07:16:33,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5365. [2023-11-29 07:16:33,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.5394629780309195) internal successors, (7568), 4977 states have internal predecessors, (7568), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8320 transitions. [2023-11-29 07:16:33,850 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8320 transitions. Word has length 223 [2023-11-29 07:16:33,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:33,850 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8320 transitions. [2023-11-29 07:16:33,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 11 states have internal predecessors, (154), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 07:16:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8320 transitions. [2023-11-29 07:16:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-29 07:16:33,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:33,851 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:33,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 07:16:34,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 07:16:34,052 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:34,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1499831458, now seen corresponding path program 1 times [2023-11-29 07:16:34,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:34,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025197673] [2023-11-29 07:16:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:34,061 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781959349] [2023-11-29 07:16:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:34,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:34,062 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:34,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 07:16:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:34,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:16:34,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 75 proven. 87 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-29 07:16:34,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:35,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:35,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025197673] [2023-11-29 07:16:35,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781959349] [2023-11-29 07:16:35,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781959349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:35,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:35,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:16:35,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047838818] [2023-11-29 07:16:35,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:35,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:16:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:35,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:16:35,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:16:35,933 INFO L87 Difference]: Start difference. First operand 5365 states and 8320 transitions. Second operand has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:16:43,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:43,084 INFO L93 Difference]: Finished difference Result 5576 states and 8432 transitions. [2023-11-29 07:16:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:16:43,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 224 [2023-11-29 07:16:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:43,091 INFO L225 Difference]: With dead ends: 5576 [2023-11-29 07:16:43,091 INFO L226 Difference]: Without dead ends: 5573 [2023-11-29 07:16:43,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:16:43,092 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 590 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:43,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1492 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-29 07:16:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5573 states. [2023-11-29 07:16:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5573 to 5365. [2023-11-29 07:16:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.526240846216436) internal successors, (7503), 4977 states have internal predecessors, (7503), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8255 transitions. [2023-11-29 07:16:43,773 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8255 transitions. Word has length 224 [2023-11-29 07:16:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:43,773 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8255 transitions. [2023-11-29 07:16:43,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-29 07:16:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8255 transitions. [2023-11-29 07:16:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-29 07:16:43,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:43,774 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:43,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 07:16:43,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 07:16:43,975 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:43,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash 864271372, now seen corresponding path program 2 times [2023-11-29 07:16:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932493147] [2023-11-29 07:16:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:43,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:43,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492501524] [2023-11-29 07:16:43,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:16:43,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:43,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:43,985 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:43,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 07:16:44,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:16:44,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:16:44,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:16:44,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:16:44,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:44,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:44,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932493147] [2023-11-29 07:16:44,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:44,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492501524] [2023-11-29 07:16:44,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492501524] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:44,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:16:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:16:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136971418] [2023-11-29 07:16:44,588 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:16:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:16:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:16:44,589 INFO L87 Difference]: Start difference. First operand 5365 states and 8255 transitions. Second operand has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:16:45,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:45,459 INFO L93 Difference]: Finished difference Result 5370 states and 8255 transitions. [2023-11-29 07:16:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:16:45,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 229 [2023-11-29 07:16:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:45,464 INFO L225 Difference]: With dead ends: 5370 [2023-11-29 07:16:45,464 INFO L226 Difference]: Without dead ends: 5369 [2023-11-29 07:16:45,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:16:45,465 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 115 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:45,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 393 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:16:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5369 states. [2023-11-29 07:16:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5369 to 5365. [2023-11-29 07:16:46,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4916 states have (on average 1.5260374288039056) internal successors, (7502), 4977 states have internal predecessors, (7502), 376 states have call successors, (376), 14 states have call predecessors, (376), 14 states have return successors, (376), 373 states have call predecessors, (376), 376 states have call successors, (376) [2023-11-29 07:16:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 8254 transitions. [2023-11-29 07:16:46,142 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 8254 transitions. Word has length 229 [2023-11-29 07:16:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:46,142 INFO L495 AbstractCegarLoop]: Abstraction has 5365 states and 8254 transitions. [2023-11-29 07:16:46,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:16:46,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 8254 transitions. [2023-11-29 07:16:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 07:16:46,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:46,143 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:46,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 07:16:46,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:46,344 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:46,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1097549514, now seen corresponding path program 3 times [2023-11-29 07:16:46,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:46,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493944268] [2023-11-29 07:16:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:46,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:46,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781607846] [2023-11-29 07:16:46,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:16:46,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:46,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:46,355 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:46,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 07:16:46,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 07:16:46,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:16:46,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:16:46,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2023-11-29 07:16:46,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:16:46,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:46,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493944268] [2023-11-29 07:16:46,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:46,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781607846] [2023-11-29 07:16:46,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781607846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:16:46,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:16:46,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:16:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468354359] [2023-11-29 07:16:46,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:16:46,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:16:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:16:46,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:16:46,477 INFO L87 Difference]: Start difference. First operand 5365 states and 8254 transitions. Second operand has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:16:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:47,219 INFO L93 Difference]: Finished difference Result 5366 states and 8254 transitions. [2023-11-29 07:16:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:16:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 234 [2023-11-29 07:16:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:47,224 INFO L225 Difference]: With dead ends: 5366 [2023-11-29 07:16:47,224 INFO L226 Difference]: Without dead ends: 5365 [2023-11-29 07:16:47,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:16:47,225 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 46 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:47,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 300 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:16:47,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2023-11-29 07:16:47,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5251. [2023-11-29 07:16:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 4810 states have (on average 1.5166320166320166) internal successors, (7295), 4871 states have internal predecessors, (7295), 368 states have call successors, (368), 14 states have call predecessors, (368), 14 states have return successors, (368), 365 states have call predecessors, (368), 368 states have call successors, (368) [2023-11-29 07:16:47,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 8031 transitions. [2023-11-29 07:16:47,901 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 8031 transitions. Word has length 234 [2023-11-29 07:16:47,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:47,901 INFO L495 AbstractCegarLoop]: Abstraction has 5251 states and 8031 transitions. [2023-11-29 07:16:47,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 07:16:47,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 8031 transitions. [2023-11-29 07:16:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 07:16:47,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:47,902 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:16:47,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 07:16:48,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 07:16:48,103 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:16:48,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:48,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1589775671, now seen corresponding path program 1 times [2023-11-29 07:16:48,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:16:48,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403729713] [2023-11-29 07:16:48,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:48,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:16:48,113 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:16:48,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655521407] [2023-11-29 07:16:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:48,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:16:48,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:16:48,115 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:16:48,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 07:16:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:48,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:16:48,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:16:48,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:16:48,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:16:48,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403729713] [2023-11-29 07:16:48,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:16:48,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655521407] [2023-11-29 07:16:48,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655521407] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:16:48,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:16:48,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 07:16:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19311543] [2023-11-29 07:16:48,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:48,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:16:48,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:16:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:16:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:16:48,870 INFO L87 Difference]: Start difference. First operand 5251 states and 8031 transitions. Second operand has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 07:17:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:02,071 INFO L93 Difference]: Finished difference Result 12963 states and 19748 transitions. [2023-11-29 07:17:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 07:17:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 234 [2023-11-29 07:17:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:02,086 INFO L225 Difference]: With dead ends: 12963 [2023-11-29 07:17:02,086 INFO L226 Difference]: Without dead ends: 12962 [2023-11-29 07:17:02,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1796 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1393, Invalid=3577, Unknown=0, NotChecked=0, Total=4970 [2023-11-29 07:17:02,088 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 3508 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3512 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 2961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:02,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3512 Valid, 1466 Invalid, 2961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-29 07:17:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2023-11-29 07:17:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 10027. [2023-11-29 07:17:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10027 states, 9265 states have (on average 1.5903939557474367) internal successors, (14735), 9326 states have internal predecessors, (14735), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:17:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10027 states to 10027 states and 16113 transitions. [2023-11-29 07:17:03,474 INFO L78 Accepts]: Start accepts. Automaton has 10027 states and 16113 transitions. Word has length 234 [2023-11-29 07:17:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:03,474 INFO L495 AbstractCegarLoop]: Abstraction has 10027 states and 16113 transitions. [2023-11-29 07:17:03,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 24.153846153846153) internal successors, (314), 14 states have internal predecessors, (314), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2023-11-29 07:17:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 10027 states and 16113 transitions. [2023-11-29 07:17:03,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 07:17:03,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:03,475 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:03,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2023-11-29 07:17:03,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2023-11-29 07:17:03,676 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:17:03,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:03,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1589777273, now seen corresponding path program 1 times [2023-11-29 07:17:03,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181536129] [2023-11-29 07:17:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:03,686 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:17:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538782236] [2023-11-29 07:17:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:03,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:17:03,687 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:17:03,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 07:17:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:03,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:17:03,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 45 proven. 97 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:17:04,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:04,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:04,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181536129] [2023-11-29 07:17:04,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:04,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538782236] [2023-11-29 07:17:04,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538782236] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:04,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:04,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:17:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464974951] [2023-11-29 07:17:04,276 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:04,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:17:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:17:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:17:04,277 INFO L87 Difference]: Start difference. First operand 10027 states and 16113 transitions. Second operand has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:07,647 INFO L93 Difference]: Finished difference Result 10126 states and 16188 transitions. [2023-11-29 07:17:07,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:17:07,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 234 [2023-11-29 07:17:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:07,660 INFO L225 Difference]: With dead ends: 10126 [2023-11-29 07:17:07,661 INFO L226 Difference]: Without dead ends: 10125 [2023-11-29 07:17:07,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:17:07,662 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 122 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:07,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 712 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 07:17:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10125 states. [2023-11-29 07:17:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10125 to 10039. [2023-11-29 07:17:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10039 states, 9277 states have (on average 1.5893068880025871) internal successors, (14744), 9338 states have internal predecessors, (14744), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:17:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10039 states to 10039 states and 16122 transitions. [2023-11-29 07:17:09,027 INFO L78 Accepts]: Start accepts. Automaton has 10039 states and 16122 transitions. Word has length 234 [2023-11-29 07:17:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:09,027 INFO L495 AbstractCegarLoop]: Abstraction has 10039 states and 16122 transitions. [2023-11-29 07:17:09,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 7 states have internal predecessors, (160), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10039 states and 16122 transitions. [2023-11-29 07:17:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 07:17:09,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:09,029 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:09,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Forceful destruction successful, exit code 0 [2023-11-29 07:17:09,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2023-11-29 07:17:09,229 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:17:09,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:09,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2038455032, now seen corresponding path program 1 times [2023-11-29 07:17:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542782897] [2023-11-29 07:17:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:09,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:09,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:17:09,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399570841] [2023-11-29 07:17:09,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:09,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:09,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:17:09,241 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:17:09,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 07:17:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:09,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:17:09,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:17:09,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:42,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:42,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542782897] [2023-11-29 07:17:42,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:42,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399570841] [2023-11-29 07:17:42,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399570841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:42,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:42,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 07:17:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512343480] [2023-11-29 07:17:42,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:42,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:17:42,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:17:42,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-11-29 07:17:42,179 INFO L87 Difference]: Start difference. First operand 10039 states and 16122 transitions. Second operand has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:45,391 INFO L93 Difference]: Finished difference Result 10169 states and 16219 transitions. [2023-11-29 07:17:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 07:17:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 235 [2023-11-29 07:17:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:45,407 INFO L225 Difference]: With dead ends: 10169 [2023-11-29 07:17:45,407 INFO L226 Difference]: Without dead ends: 10167 [2023-11-29 07:17:45,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=94, Invalid=170, Unknown=8, NotChecked=0, Total=272 [2023-11-29 07:17:45,409 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 213 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:45,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 663 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 07:17:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10167 states. [2023-11-29 07:17:46,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10167 to 10054. [2023-11-29 07:17:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10054 states, 9292 states have (on average 1.587709857942316) internal successors, (14753), 9353 states have internal predecessors, (14753), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:17:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10054 states to 10054 states and 16131 transitions. [2023-11-29 07:17:46,685 INFO L78 Accepts]: Start accepts. Automaton has 10054 states and 16131 transitions. Word has length 235 [2023-11-29 07:17:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:46,686 INFO L495 AbstractCegarLoop]: Abstraction has 10054 states and 16131 transitions. [2023-11-29 07:17:46,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 7 states have internal predecessors, (161), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10054 states and 16131 transitions. [2023-11-29 07:17:46,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 07:17:46,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:46,687 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:46,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 07:17:46,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:46,887 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:17:46,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:46,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1232403625, now seen corresponding path program 1 times [2023-11-29 07:17:46,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:46,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161633141] [2023-11-29 07:17:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:46,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:46,897 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:17:46,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173325272] [2023-11-29 07:17:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:46,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:17:46,898 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:17:46,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 07:17:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:46,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:17:46,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 07:17:47,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:48,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:48,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161633141] [2023-11-29 07:17:48,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:48,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173325272] [2023-11-29 07:17:48,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173325272] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:48,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:48,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:17:48,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534548188] [2023-11-29 07:17:48,139 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:48,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:17:48,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:48,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:17:48,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 07:17:48,140 INFO L87 Difference]: Start difference. First operand 10054 states and 16131 transitions. Second operand has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:17:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:50,807 INFO L93 Difference]: Finished difference Result 10123 states and 16188 transitions. [2023-11-29 07:17:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:17:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 236 [2023-11-29 07:17:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:50,819 INFO L225 Difference]: With dead ends: 10123 [2023-11-29 07:17:50,819 INFO L226 Difference]: Without dead ends: 10122 [2023-11-29 07:17:50,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=87, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:17:50,821 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 63 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:50,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 707 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 07:17:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2023-11-29 07:17:52,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 10078. [2023-11-29 07:17:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10078 states, 9316 states have (on average 1.5865178188063547) internal successors, (14780), 9377 states have internal predecessors, (14780), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:17:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10078 states to 10078 states and 16158 transitions. [2023-11-29 07:17:52,157 INFO L78 Accepts]: Start accepts. Automaton has 10078 states and 16158 transitions. Word has length 236 [2023-11-29 07:17:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:52,157 INFO L495 AbstractCegarLoop]: Abstraction has 10078 states and 16158 transitions. [2023-11-29 07:17:52,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.4) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:17:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 10078 states and 16158 transitions. [2023-11-29 07:17:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 07:17:52,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:52,158 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:52,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 07:17:52,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:52,358 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:17:52,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash -450193110, now seen corresponding path program 1 times [2023-11-29 07:17:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235221329] [2023-11-29 07:17:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:52,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:17:52,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118983920] [2023-11-29 07:17:52,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:52,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:52,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:17:52,369 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:17:52,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 07:17:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:52,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:17:52,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:53,048 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 45 proven. 100 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:17:53,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:53,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:53,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235221329] [2023-11-29 07:17:53,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:53,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118983920] [2023-11-29 07:17:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118983920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:53,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:17:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212120540] [2023-11-29 07:17:53,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:53,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:17:53,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:17:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:17:53,179 INFO L87 Difference]: Start difference. First operand 10078 states and 16158 transitions. Second operand has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:55,959 INFO L93 Difference]: Finished difference Result 10134 states and 16170 transitions. [2023-11-29 07:17:55,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 07:17:55,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 237 [2023-11-29 07:17:55,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:55,970 INFO L225 Difference]: With dead ends: 10134 [2023-11-29 07:17:55,970 INFO L226 Difference]: Without dead ends: 10133 [2023-11-29 07:17:55,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 07:17:55,971 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 101 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:55,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 806 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 07:17:55,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10133 states. [2023-11-29 07:17:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10133 to 10084. [2023-11-29 07:17:57,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10084 states, 9322 states have (on average 1.5858184938854323) internal successors, (14783), 9383 states have internal predecessors, (14783), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:17:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10084 states to 10084 states and 16161 transitions. [2023-11-29 07:17:57,252 INFO L78 Accepts]: Start accepts. Automaton has 10084 states and 16161 transitions. Word has length 237 [2023-11-29 07:17:57,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:57,252 INFO L495 AbstractCegarLoop]: Abstraction has 10084 states and 16161 transitions. [2023-11-29 07:17:57,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 07:17:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10084 states and 16161 transitions. [2023-11-29 07:17:57,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-29 07:17:57,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:57,253 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:17:57,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2023-11-29 07:17:57,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:57,454 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:17:57,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1071084341, now seen corresponding path program 1 times [2023-11-29 07:17:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:17:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327463261] [2023-11-29 07:17:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:57,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:17:57,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:17:57,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074689069] [2023-11-29 07:17:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:57,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:17:57,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:17:57,464 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:17:57,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 07:17:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:57,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:17:57,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 45 proven. 101 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:17:58,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:58,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:17:58,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327463261] [2023-11-29 07:17:58,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:17:58,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074689069] [2023-11-29 07:17:58,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074689069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:58,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:17:58,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:17:58,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77469893] [2023-11-29 07:17:58,137 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:17:58,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:17:58,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:17:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:17:58,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:17:58,138 INFO L87 Difference]: Start difference. First operand 10084 states and 16161 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:00,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:00,450 INFO L93 Difference]: Finished difference Result 10099 states and 16169 transitions. [2023-11-29 07:18:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:18:00,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 238 [2023-11-29 07:18:00,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:00,462 INFO L225 Difference]: With dead ends: 10099 [2023-11-29 07:18:00,462 INFO L226 Difference]: Without dead ends: 10098 [2023-11-29 07:18:00,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 07:18:00,464 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 139 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:00,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 543 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:18:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10098 states. [2023-11-29 07:18:01,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10098 to 10085. [2023-11-29 07:18:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 9323 states have (on average 1.5856483964389145) internal successors, (14783), 9384 states have internal predecessors, (14783), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:18:01,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 16161 transitions. [2023-11-29 07:18:01,771 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 16161 transitions. Word has length 238 [2023-11-29 07:18:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:01,772 INFO L495 AbstractCegarLoop]: Abstraction has 10085 states and 16161 transitions. [2023-11-29 07:18:01,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 8 states have internal predecessors, (164), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 16161 transitions. [2023-11-29 07:18:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-29 07:18:01,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:01,773 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:01,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2023-11-29 07:18:01,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 07:18:01,973 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:01,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 420737849, now seen corresponding path program 2 times [2023-11-29 07:18:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:01,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219495785] [2023-11-29 07:18:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:01,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143878895] [2023-11-29 07:18:01,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:18:01,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:01,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:01,985 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 07:18:02,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:18:02,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:18:02,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:18:02,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:03,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219495785] [2023-11-29 07:18:03,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143878895] [2023-11-29 07:18:03,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143878895] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:03,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:18:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:18:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924561310] [2023-11-29 07:18:03,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:18:03,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:03,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:18:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:18:03,640 INFO L87 Difference]: Start difference. First operand 10085 states and 16161 transitions. Second operand has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:07,937 INFO L93 Difference]: Finished difference Result 10229 states and 16326 transitions. [2023-11-29 07:18:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:18:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 239 [2023-11-29 07:18:07,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:07,949 INFO L225 Difference]: With dead ends: 10229 [2023-11-29 07:18:07,950 INFO L226 Difference]: Without dead ends: 10224 [2023-11-29 07:18:07,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:18:07,951 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 334 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:07,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 692 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 07:18:07,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10224 states. [2023-11-29 07:18:09,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10224 to 10085. [2023-11-29 07:18:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10085 states, 9323 states have (on average 1.5854338732167756) internal successors, (14781), 9384 states have internal predecessors, (14781), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:18:09,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10085 states to 10085 states and 16159 transitions. [2023-11-29 07:18:09,240 INFO L78 Accepts]: Start accepts. Automaton has 10085 states and 16159 transitions. Word has length 239 [2023-11-29 07:18:09,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:09,241 INFO L495 AbstractCegarLoop]: Abstraction has 10085 states and 16159 transitions. [2023-11-29 07:18:09,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.0) internal successors, (165), 12 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:09,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10085 states and 16159 transitions. [2023-11-29 07:18:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-29 07:18:09,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:09,242 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:09,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2023-11-29 07:18:09,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:09,442 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:09,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1156123980, now seen corresponding path program 1 times [2023-11-29 07:18:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:09,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575489687] [2023-11-29 07:18:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:09,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:09,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283403992] [2023-11-29 07:18:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:09,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:09,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:09,453 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:09,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 07:18:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:09,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:18:09,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:10,003 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:10,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:10,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:10,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575489687] [2023-11-29 07:18:10,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:10,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283403992] [2023-11-29 07:18:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283403992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:10,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:18:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 07:18:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059139471] [2023-11-29 07:18:10,132 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:10,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:18:10,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:18:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:18:10,133 INFO L87 Difference]: Start difference. First operand 10085 states and 16159 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:12,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:12,287 INFO L93 Difference]: Finished difference Result 10179 states and 16229 transitions. [2023-11-29 07:18:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:18:12,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 239 [2023-11-29 07:18:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:12,300 INFO L225 Difference]: With dead ends: 10179 [2023-11-29 07:18:12,300 INFO L226 Difference]: Without dead ends: 10178 [2023-11-29 07:18:12,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:18:12,302 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 160 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:12,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 741 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:18:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2023-11-29 07:18:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 10096. [2023-11-29 07:18:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10096 states, 9334 states have (on average 1.584958217270195) internal successors, (14794), 9395 states have internal predecessors, (14794), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:18:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10096 states to 10096 states and 16172 transitions. [2023-11-29 07:18:13,743 INFO L78 Accepts]: Start accepts. Automaton has 10096 states and 16172 transitions. Word has length 239 [2023-11-29 07:18:13,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:13,743 INFO L495 AbstractCegarLoop]: Abstraction has 10096 states and 16172 transitions. [2023-11-29 07:18:13,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand 10096 states and 16172 transitions. [2023-11-29 07:18:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 07:18:13,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:13,744 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:13,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2023-11-29 07:18:13,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2023-11-29 07:18:13,945 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:13,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:13,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1480105197, now seen corresponding path program 1 times [2023-11-29 07:18:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:13,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239298853] [2023-11-29 07:18:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:13,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:13,955 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:13,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785067277] [2023-11-29 07:18:13,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:13,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:13,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:13,956 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:13,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-29 07:18:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:14,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:18:14,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-29 07:18:14,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:23,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239298853] [2023-11-29 07:18:23,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785067277] [2023-11-29 07:18:23,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785067277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:23,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:18:23,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 07:18:23,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636680905] [2023-11-29 07:18:23,247 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:23,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:18:23,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:23,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:18:23,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2023-11-29 07:18:23,247 INFO L87 Difference]: Start difference. First operand 10096 states and 16172 transitions. Second operand has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:18:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:24,633 INFO L93 Difference]: Finished difference Result 10161 states and 16220 transitions. [2023-11-29 07:18:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:18:24,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 240 [2023-11-29 07:18:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:24,644 INFO L225 Difference]: With dead ends: 10161 [2023-11-29 07:18:24,644 INFO L226 Difference]: Without dead ends: 10160 [2023-11-29 07:18:24,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=25, Invalid=62, Unknown=3, NotChecked=0, Total=90 [2023-11-29 07:18:24,645 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 63 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:24,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 725 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:18:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10160 states. [2023-11-29 07:18:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10160 to 10114. [2023-11-29 07:18:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10114 states, 9352 states have (on average 1.5838323353293413) internal successors, (14812), 9413 states have internal predecessors, (14812), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:18:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10114 states to 10114 states and 16190 transitions. [2023-11-29 07:18:25,909 INFO L78 Accepts]: Start accepts. Automaton has 10114 states and 16190 transitions. Word has length 240 [2023-11-29 07:18:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:25,909 INFO L495 AbstractCegarLoop]: Abstraction has 10114 states and 16190 transitions. [2023-11-29 07:18:25,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 07:18:25,909 INFO L276 IsEmpty]: Start isEmpty. Operand 10114 states and 16190 transitions. [2023-11-29 07:18:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-11-29 07:18:25,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:25,910 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:25,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2023-11-29 07:18:26,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2023-11-29 07:18:26,111 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:26,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1361378962, now seen corresponding path program 1 times [2023-11-29 07:18:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:26,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228644046] [2023-11-29 07:18:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:26,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:26,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:26,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444777090] [2023-11-29 07:18:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:26,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:26,124 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:26,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-29 07:18:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:26,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:18:26,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 45 proven. 104 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:26,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:35,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:35,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228644046] [2023-11-29 07:18:35,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:35,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444777090] [2023-11-29 07:18:35,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444777090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:35,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:18:35,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:18:35,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086042335] [2023-11-29 07:18:35,009 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:35,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:18:35,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:35,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:18:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=100, Unknown=1, NotChecked=0, Total=132 [2023-11-29 07:18:35,010 INFO L87 Difference]: Start difference. First operand 10114 states and 16190 transitions. Second operand has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:37,179 INFO L93 Difference]: Finished difference Result 10123 states and 16192 transitions. [2023-11-29 07:18:37,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 07:18:37,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 241 [2023-11-29 07:18:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:37,192 INFO L225 Difference]: With dead ends: 10123 [2023-11-29 07:18:37,192 INFO L226 Difference]: Without dead ends: 10122 [2023-11-29 07:18:37,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2023-11-29 07:18:37,194 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 138 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:37,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 548 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:18:37,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2023-11-29 07:18:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 10115. [2023-11-29 07:18:38,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10115 states, 9353 states have (on average 1.5836629958302149) internal successors, (14812), 9414 states have internal predecessors, (14812), 689 states have call successors, (689), 14 states have call predecessors, (689), 14 states have return successors, (689), 686 states have call predecessors, (689), 689 states have call successors, (689) [2023-11-29 07:18:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10115 states to 10115 states and 16190 transitions. [2023-11-29 07:18:38,483 INFO L78 Accepts]: Start accepts. Automaton has 10115 states and 16190 transitions. Word has length 241 [2023-11-29 07:18:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:38,483 INFO L495 AbstractCegarLoop]: Abstraction has 10115 states and 16190 transitions. [2023-11-29 07:18:38,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 20.875) internal successors, (167), 9 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 07:18:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 10115 states and 16190 transitions. [2023-11-29 07:18:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-29 07:18:38,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:38,484 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:38,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2023-11-29 07:18:38,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2023-11-29 07:18:38,685 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:38,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash 535568902, now seen corresponding path program 1 times [2023-11-29 07:18:38,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:38,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519182858] [2023-11-29 07:18:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:38,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572918133] [2023-11-29 07:18:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:38,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:38,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:38,697 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:38,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2023-11-29 07:18:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:38,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 07:18:38,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 341 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 07:18:39,017 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:39,281 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 6 proven. 149 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519182858] [2023-11-29 07:18:39,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572918133] [2023-11-29 07:18:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572918133] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:18:39,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:18:39,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 07:18:39,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324857014] [2023-11-29 07:18:39,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:39,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 07:18:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 07:18:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2023-11-29 07:18:39,283 INFO L87 Difference]: Start difference. First operand 10115 states and 16190 transitions. Second operand has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 07:18:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:41,490 INFO L93 Difference]: Finished difference Result 14673 states and 22959 transitions. [2023-11-29 07:18:41,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 07:18:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 244 [2023-11-29 07:18:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:41,507 INFO L225 Difference]: With dead ends: 14673 [2023-11-29 07:18:41,507 INFO L226 Difference]: Without dead ends: 14671 [2023-11-29 07:18:41,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1656, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 07:18:41,510 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 774 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2248 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:18:41,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14671 states. [2023-11-29 07:18:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14671 to 13462. [2023-11-29 07:18:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13462 states, 12457 states have (on average 1.5653849241390383) internal successors, (19500), 12520 states have internal predecessors, (19500), 927 states have call successors, (927), 19 states have call predecessors, (927), 19 states have return successors, (927), 922 states have call predecessors, (927), 927 states have call successors, (927) [2023-11-29 07:18:43,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 21354 transitions. [2023-11-29 07:18:43,231 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 21354 transitions. Word has length 244 [2023-11-29 07:18:43,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:43,231 INFO L495 AbstractCegarLoop]: Abstraction has 13462 states and 21354 transitions. [2023-11-29 07:18:43,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 24 states have internal predecessors, (335), 7 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 07:18:43,231 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 21354 transitions. [2023-11-29 07:18:43,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-29 07:18:43,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:43,232 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:43,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2023-11-29 07:18:43,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:43,433 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:43,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:43,433 INFO L85 PathProgramCache]: Analyzing trace with hash -714358739, now seen corresponding path program 1 times [2023-11-29 07:18:43,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:43,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92093666] [2023-11-29 07:18:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:43,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:43,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:43,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123001842] [2023-11-29 07:18:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:43,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:43,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:43,446 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:43,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2023-11-29 07:18:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:43,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 07:18:43,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 349 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 07:18:43,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:44,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:44,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92093666] [2023-11-29 07:18:44,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:44,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123001842] [2023-11-29 07:18:44,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123001842] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:18:44,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:18:44,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2023-11-29 07:18:44,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234336050] [2023-11-29 07:18:44,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 07:18:44,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 07:18:44,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 07:18:44,060 INFO L87 Difference]: Start difference. First operand 13462 states and 21354 transitions. Second operand has 26 states, 26 states have (on average 13.423076923076923) internal successors, (349), 26 states have internal predecessors, (349), 8 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 07:18:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:46,250 INFO L93 Difference]: Finished difference Result 23745 states and 38181 transitions. [2023-11-29 07:18:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 07:18:46,250 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.423076923076923) internal successors, (349), 26 states have internal predecessors, (349), 8 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 246 [2023-11-29 07:18:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:46,267 INFO L225 Difference]: With dead ends: 23745 [2023-11-29 07:18:46,267 INFO L226 Difference]: Without dead ends: 14211 [2023-11-29 07:18:46,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=614, Invalid=2038, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 07:18:46,277 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 529 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:46,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1694 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:18:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14211 states. [2023-11-29 07:18:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14211 to 13960. [2023-11-29 07:18:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13960 states, 12913 states have (on average 1.5592039030434446) internal successors, (20134), 12976 states have internal predecessors, (20134), 959 states have call successors, (959), 29 states have call predecessors, (959), 29 states have return successors, (959), 954 states have call predecessors, (959), 959 states have call successors, (959) [2023-11-29 07:18:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13960 states to 13960 states and 22052 transitions. [2023-11-29 07:18:48,055 INFO L78 Accepts]: Start accepts. Automaton has 13960 states and 22052 transitions. Word has length 246 [2023-11-29 07:18:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:48,055 INFO L495 AbstractCegarLoop]: Abstraction has 13960 states and 22052 transitions. [2023-11-29 07:18:48,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.423076923076923) internal successors, (349), 26 states have internal predecessors, (349), 8 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 07:18:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 13960 states and 22052 transitions. [2023-11-29 07:18:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-29 07:18:48,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:48,056 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:48,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2023-11-29 07:18:48,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:48,257 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:48,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:48,257 INFO L85 PathProgramCache]: Analyzing trace with hash -670286345, now seen corresponding path program 1 times [2023-11-29 07:18:48,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:48,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509287526] [2023-11-29 07:18:48,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:48,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:48,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198062111] [2023-11-29 07:18:48,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:48,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:48,268 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:48,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2023-11-29 07:18:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:48,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 07:18:48,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 100 proven. 59 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:48,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:48,639 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 100 proven. 59 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 07:18:48,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:48,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509287526] [2023-11-29 07:18:48,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:48,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198062111] [2023-11-29 07:18:48,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198062111] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:18:48,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:18:48,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-29 07:18:48,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36191085] [2023-11-29 07:18:48,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:48,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 07:18:48,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 07:18:48,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:18:48,664 INFO L87 Difference]: Start difference. First operand 13960 states and 22052 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 07:18:53,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:18:53,140 INFO L93 Difference]: Finished difference Result 23712 states and 37461 transitions. [2023-11-29 07:18:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 07:18:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 247 [2023-11-29 07:18:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:18:53,168 INFO L225 Difference]: With dead ends: 23712 [2023-11-29 07:18:53,168 INFO L226 Difference]: Without dead ends: 23667 [2023-11-29 07:18:53,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 489 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2023-11-29 07:18:53,171 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 818 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:18:53,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1732 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 07:18:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23667 states. [2023-11-29 07:18:55,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23667 to 14885. [2023-11-29 07:18:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14885 states, 13786 states have (on average 1.56122152908748) internal successors, (21523), 13849 states have internal predecessors, (21523), 1011 states have call successors, (1011), 29 states have call predecessors, (1011), 29 states have return successors, (1011), 1006 states have call predecessors, (1011), 1011 states have call successors, (1011) [2023-11-29 07:18:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14885 states to 14885 states and 23545 transitions. [2023-11-29 07:18:55,323 INFO L78 Accepts]: Start accepts. Automaton has 14885 states and 23545 transitions. Word has length 247 [2023-11-29 07:18:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:18:55,323 INFO L495 AbstractCegarLoop]: Abstraction has 14885 states and 23545 transitions. [2023-11-29 07:18:55,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 07:18:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 14885 states and 23545 transitions. [2023-11-29 07:18:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-29 07:18:55,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:18:55,325 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:18:55,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2023-11-29 07:18:55,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2023-11-29 07:18:55,525 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:18:55,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:18:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1420041437, now seen corresponding path program 1 times [2023-11-29 07:18:55,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:18:55,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593982030] [2023-11-29 07:18:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:55,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:18:55,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:18:55,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808863180] [2023-11-29 07:18:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:18:55,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:18:55,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:18:55,542 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:18:55,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2023-11-29 07:18:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:18:55,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:18:55,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:18:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 07:18:56,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:18:56,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:18:56,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593982030] [2023-11-29 07:18:56,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:18:56,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808863180] [2023-11-29 07:18:56,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808863180] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:18:56,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:18:56,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:18:56,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513298829] [2023-11-29 07:18:56,936 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:18:56,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:18:56,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:18:56,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:18:56,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:18:56,937 INFO L87 Difference]: Start difference. First operand 14885 states and 23545 transitions. Second operand has 13 states, 12 states have (on average 15.083333333333334) internal successors, (181), 13 states have internal predecessors, (181), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:02,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:02,037 INFO L93 Difference]: Finished difference Result 15158 states and 23929 transitions. [2023-11-29 07:19:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:19:02,038 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 15.083333333333334) internal successors, (181), 13 states have internal predecessors, (181), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 260 [2023-11-29 07:19:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:02,055 INFO L225 Difference]: With dead ends: 15158 [2023-11-29 07:19:02,055 INFO L226 Difference]: Without dead ends: 15157 [2023-11-29 07:19:02,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:19:02,057 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 428 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:02,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1108 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 07:19:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2023-11-29 07:19:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 14885. [2023-11-29 07:19:03,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14885 states, 13786 states have (on average 1.5611489917307413) internal successors, (21522), 13849 states have internal predecessors, (21522), 1011 states have call successors, (1011), 29 states have call predecessors, (1011), 29 states have return successors, (1011), 1006 states have call predecessors, (1011), 1011 states have call successors, (1011) [2023-11-29 07:19:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14885 states to 14885 states and 23544 transitions. [2023-11-29 07:19:03,934 INFO L78 Accepts]: Start accepts. Automaton has 14885 states and 23544 transitions. Word has length 260 [2023-11-29 07:19:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:03,934 INFO L495 AbstractCegarLoop]: Abstraction has 14885 states and 23544 transitions. [2023-11-29 07:19:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 15.083333333333334) internal successors, (181), 13 states have internal predecessors, (181), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 14885 states and 23544 transitions. [2023-11-29 07:19:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 07:19:03,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:03,936 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:19:03,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2023-11-29 07:19:04,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:04,136 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:19:04,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:04,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1071611496, now seen corresponding path program 1 times [2023-11-29 07:19:04,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:19:04,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265032658] [2023-11-29 07:19:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:19:04,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:19:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554146334] [2023-11-29 07:19:04,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:04,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:04,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:19:04,153 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:19:04,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2023-11-29 07:19:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:04,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 07:19:04,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 07:19:05,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:06,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:19:06,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265032658] [2023-11-29 07:19:06,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:19:06,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554146334] [2023-11-29 07:19:06,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554146334] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:06,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:19:06,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 07:19:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79144432] [2023-11-29 07:19:06,368 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:06,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 07:19:06,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 07:19:06,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:19:06,369 INFO L87 Difference]: Start difference. First operand 14885 states and 23544 transitions. Second operand has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:11,618 INFO L93 Difference]: Finished difference Result 15157 states and 23928 transitions. [2023-11-29 07:19:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:19:11,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 261 [2023-11-29 07:19:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:11,635 INFO L225 Difference]: With dead ends: 15157 [2023-11-29 07:19:11,635 INFO L226 Difference]: Without dead ends: 15156 [2023-11-29 07:19:11,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:19:11,637 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 503 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:11,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1050 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 07:19:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15156 states. [2023-11-29 07:19:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15156 to 14885. [2023-11-29 07:19:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14885 states, 13786 states have (on average 1.5610764543740026) internal successors, (21521), 13849 states have internal predecessors, (21521), 1011 states have call successors, (1011), 29 states have call predecessors, (1011), 29 states have return successors, (1011), 1006 states have call predecessors, (1011), 1011 states have call successors, (1011) [2023-11-29 07:19:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14885 states to 14885 states and 23543 transitions. [2023-11-29 07:19:13,522 INFO L78 Accepts]: Start accepts. Automaton has 14885 states and 23543 transitions. Word has length 261 [2023-11-29 07:19:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:13,522 INFO L495 AbstractCegarLoop]: Abstraction has 14885 states and 23543 transitions. [2023-11-29 07:19:13,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:13,522 INFO L276 IsEmpty]: Start isEmpty. Operand 14885 states and 23543 transitions. [2023-11-29 07:19:13,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 07:19:13,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:13,523 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:19:13,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2023-11-29 07:19:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:13,724 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:19:13,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1139782085, now seen corresponding path program 1 times [2023-11-29 07:19:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:19:13,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502992746] [2023-11-29 07:19:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:19:13,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:19:13,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802527610] [2023-11-29 07:19:13,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:13,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:19:13,739 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:19:13,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2023-11-29 07:19:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:13,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:19:13,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 0 proven. 195 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 07:19:15,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:15,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:19:15,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502992746] [2023-11-29 07:19:15,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:19:15,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802527610] [2023-11-29 07:19:15,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802527610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:15,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:19:15,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:19:15,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631394488] [2023-11-29 07:19:15,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:15,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:19:15,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:15,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:19:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:19:15,127 INFO L87 Difference]: Start difference. First operand 14885 states and 23543 transitions. Second operand has 12 states, 11 states have (on average 16.636363636363637) internal successors, (183), 12 states have internal predecessors, (183), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:20,473 INFO L93 Difference]: Finished difference Result 15124 states and 23871 transitions. [2023-11-29 07:19:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:19:20,473 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.636363636363637) internal successors, (183), 12 states have internal predecessors, (183), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 262 [2023-11-29 07:19:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:20,491 INFO L225 Difference]: With dead ends: 15124 [2023-11-29 07:19:20,492 INFO L226 Difference]: Without dead ends: 15123 [2023-11-29 07:19:20,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-11-29 07:19:20,494 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 446 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:20,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1278 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 07:19:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15123 states. [2023-11-29 07:19:22,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15123 to 14885. [2023-11-29 07:19:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14885 states, 13786 states have (on average 1.5610039170172638) internal successors, (21520), 13849 states have internal predecessors, (21520), 1011 states have call successors, (1011), 29 states have call predecessors, (1011), 29 states have return successors, (1011), 1006 states have call predecessors, (1011), 1011 states have call successors, (1011) [2023-11-29 07:19:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14885 states to 14885 states and 23542 transitions. [2023-11-29 07:19:22,424 INFO L78 Accepts]: Start accepts. Automaton has 14885 states and 23542 transitions. Word has length 262 [2023-11-29 07:19:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:22,424 INFO L495 AbstractCegarLoop]: Abstraction has 14885 states and 23542 transitions. [2023-11-29 07:19:22,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.636363636363637) internal successors, (183), 12 states have internal predecessors, (183), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 14885 states and 23542 transitions. [2023-11-29 07:19:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-29 07:19:22,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:22,426 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:19:22,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2023-11-29 07:19:22,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:22,626 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:19:22,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:22,627 INFO L85 PathProgramCache]: Analyzing trace with hash 973506362, now seen corresponding path program 1 times [2023-11-29 07:19:22,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:19:22,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240595319] [2023-11-29 07:19:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:22,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:19:22,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:19:22,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479752105] [2023-11-29 07:19:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:22,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:22,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:19:22,638 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:19:22,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2023-11-29 07:19:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:22,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:19:22,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 07:19:23,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:24,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:19:24,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240595319] [2023-11-29 07:19:24,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:19:24,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479752105] [2023-11-29 07:19:24,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479752105] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:24,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:19:24,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 07:19:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768711111] [2023-11-29 07:19:24,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 07:19:24,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:24,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 07:19:24,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:19:24,287 INFO L87 Difference]: Start difference. First operand 14885 states and 23542 transitions. Second operand has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 12 states have internal predecessors, (184), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:29,929 INFO L93 Difference]: Finished difference Result 15123 states and 23870 transitions. [2023-11-29 07:19:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 07:19:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 12 states have internal predecessors, (184), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 263 [2023-11-29 07:19:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:29,945 INFO L225 Difference]: With dead ends: 15123 [2023-11-29 07:19:29,945 INFO L226 Difference]: Without dead ends: 15122 [2023-11-29 07:19:29,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:19:29,947 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 445 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:29,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1264 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 07:19:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15122 states. [2023-11-29 07:19:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15122 to 15081. [2023-11-29 07:19:31,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15081 states, 13966 states have (on average 1.561076901045396) internal successors, (21802), 14029 states have internal predecessors, (21802), 1027 states have call successors, (1027), 29 states have call predecessors, (1027), 29 states have return successors, (1027), 1022 states have call predecessors, (1027), 1027 states have call successors, (1027) [2023-11-29 07:19:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15081 states to 15081 states and 23856 transitions. [2023-11-29 07:19:31,866 INFO L78 Accepts]: Start accepts. Automaton has 15081 states and 23856 transitions. Word has length 263 [2023-11-29 07:19:31,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:31,866 INFO L495 AbstractCegarLoop]: Abstraction has 15081 states and 23856 transitions. [2023-11-29 07:19:31,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 12 states have internal predecessors, (184), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 07:19:31,866 INFO L276 IsEmpty]: Start isEmpty. Operand 15081 states and 23856 transitions. [2023-11-29 07:19:31,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 07:19:31,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:31,868 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:19:31,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2023-11-29 07:19:32,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2023-11-29 07:19:32,068 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:19:32,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash -763253540, now seen corresponding path program 1 times [2023-11-29 07:19:32,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:19:32,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182818106] [2023-11-29 07:19:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:32,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:19:32,081 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:19:32,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562475647] [2023-11-29 07:19:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:32,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:32,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:19:32,082 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:19:32,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2023-11-29 07:19:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:32,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 07:19:32,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-29 07:19:33,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:33,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:19:33,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182818106] [2023-11-29 07:19:33,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:19:33,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562475647] [2023-11-29 07:19:33,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562475647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:33,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:19:33,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 07:19:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739555082] [2023-11-29 07:19:33,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:33,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:19:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:19:33,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:19:33,510 INFO L87 Difference]: Start difference. First operand 15081 states and 23856 transitions. Second operand has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:19:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:19:37,940 INFO L93 Difference]: Finished difference Result 23005 states and 36846 transitions. [2023-11-29 07:19:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:19:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 265 [2023-11-29 07:19:37,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:19:37,965 INFO L225 Difference]: With dead ends: 23005 [2023-11-29 07:19:37,966 INFO L226 Difference]: Without dead ends: 22974 [2023-11-29 07:19:37,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:19:37,969 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 363 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:19:37,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 622 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 07:19:37,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22974 states. [2023-11-29 07:19:40,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22974 to 22619. [2023-11-29 07:19:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22619 states, 20946 states have (on average 1.5475031032177982) internal successors, (32414), 21013 states have internal predecessors, (32414), 1585 states have call successors, (1585), 29 states have call predecessors, (1585), 29 states have return successors, (1585), 1576 states have call predecessors, (1585), 1585 states have call successors, (1585) [2023-11-29 07:19:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22619 states to 22619 states and 35584 transitions. [2023-11-29 07:19:40,933 INFO L78 Accepts]: Start accepts. Automaton has 22619 states and 35584 transitions. Word has length 265 [2023-11-29 07:19:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:19:40,934 INFO L495 AbstractCegarLoop]: Abstraction has 22619 states and 35584 transitions. [2023-11-29 07:19:40,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 07:19:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 22619 states and 35584 transitions. [2023-11-29 07:19:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-29 07:19:40,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:19:40,935 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:19:40,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2023-11-29 07:19:41,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2023-11-29 07:19:41,135 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2023-11-29 07:19:41,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:19:41,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1658689127, now seen corresponding path program 2 times [2023-11-29 07:19:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:19:41,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276508700] [2023-11-29 07:19:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:19:41,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:19:41,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 07:19:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413745773] [2023-11-29 07:19:41,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:19:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:19:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:19:41,147 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:19:41,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fb7f015-a2b3-48f1-aa91-3f9c3bb657ea/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2023-11-29 07:19:41,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:19:41,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:19:41,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 07:19:41,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 53 proven. 172 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 07:19:49,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:57,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:19:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276508700] [2023-11-29 07:19:57,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:19:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413745773] [2023-11-29 07:19:57,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413745773] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:57,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:19:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 07:19:57,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859665024] [2023-11-29 07:19:57,123 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:57,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 07:19:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:19:57,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 07:19:57,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=250, Unknown=2, NotChecked=0, Total=306 [2023-11-29 07:19:57,123 INFO L87 Difference]: Start difference. First operand 22619 states and 35584 transitions. Second operand has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 07:20:02,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:04,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:06,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:09,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:20:13,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]