./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/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_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/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_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/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 83ea03e3a970ed9a04e84a7095cded72c8faa028a8061c6de69ab7c540d420f5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:25:00,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:25:00,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:25:00,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:25:00,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:25:00,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:25:00,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:25:00,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:25:00,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:25:00,217 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:25:00,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:25:00,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:25:00,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:25:00,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:25:00,220 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:25:00,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:25:00,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:25:00,221 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:25:00,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:25:00,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:25:00,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:25:00,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:25:00,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:25:00,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:25:00,225 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:25:00,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:25:00,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:25:00,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:25:00,226 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:25:00,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:25:00,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:25:00,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:25:00,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:25:00,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:25:00,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:25:00,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:25:00,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:25:00,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:25:00,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:25:00,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:25:00,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:25:00,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:25:00,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:25:00,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:25:00,230 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_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83ea03e3a970ed9a04e84a7095cded72c8faa028a8061c6de69ab7c540d420f5 [2023-11-29 05:25:00,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:25:00,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:25:00,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:25:00,483 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:25:00,483 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:25:00,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c [2023-11-29 05:25:03,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:25:03,375 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:25:03,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound100.c [2023-11-29 05:25:03,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/data/32f72a581/204cab46b7134e2dbaac9f2999060757/FLAGa8b0ae5f7 [2023-11-29 05:25:03,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/data/32f72a581/204cab46b7134e2dbaac9f2999060757 [2023-11-29 05:25:03,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:25:03,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:25:03,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:25:03,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:25:03,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:25:03,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4874b4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03, skipping insertion in model container [2023-11-29 05:25:03,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:25:03,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:25:03,643 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:25:03,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:25:03,682 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:25:03,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03 WrapperNode [2023-11-29 05:25:03,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:25:03,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:25:03,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:25:03,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:25:03,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,726 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-29 05:25:03,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:25:03,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:25:03,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:25:03,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:25:03,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,755 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 05:25:03,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:25:03,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:25:03,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:25:03,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:25:03,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (1/1) ... [2023-11-29 05:25:03,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:25:03,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:03,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:25:03,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:25:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:25:03,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:25:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:25:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:25:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:25:03,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 05:25:03,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 05:25:03,917 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:25:03,918 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:25:04,183 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:25:04,217 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:25:04,217 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 05:25:04,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:25:04 BoogieIcfgContainer [2023-11-29 05:25:04,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:25:04,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:25:04,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:25:04,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:25:04,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:25:03" (1/3) ... [2023-11-29 05:25:04,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac177a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:25:04, skipping insertion in model container [2023-11-29 05:25:04,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:25:03" (2/3) ... [2023-11-29 05:25:04,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac177a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:25:04, skipping insertion in model container [2023-11-29 05:25:04,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:25:04" (3/3) ... [2023-11-29 05:25:04,227 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound100.c [2023-11-29 05:25:04,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:25:04,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 05:25:04,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:25:04,294 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;@58d03724, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:25:04,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 05:25:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 05:25:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 05:25:04,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:04,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 05:25:04,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:04,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2023-11-29 05:25:04,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804803357] [2023-11-29 05:25:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:04,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:25:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804803357] [2023-11-29 05:25:04,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804803357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:04,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:04,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:04,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235058707] [2023-11-29 05:25:04,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:04,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:04,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:04,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:04,550 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:04,633 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-11-29 05:25:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:04,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 05:25:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:04,643 INFO L225 Difference]: With dead ends: 157 [2023-11-29 05:25:04,643 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 05:25:04,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 05:25:04,649 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:04,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 05:25:04,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 05:25:04,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:25:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-11-29 05:25:04,688 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2023-11-29 05:25:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:04,688 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-11-29 05:25:04,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-11-29 05:25:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 05:25:04,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:04,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:04,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:25:04,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:04,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2023-11-29 05:25:04,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:04,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089786126] [2023-11-29 05:25:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:04,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:04,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:04,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950822563] [2023-11-29 05:25:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:04,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:04,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:04,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:04,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:25:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:04,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:04,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:04,864 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 05:25:04,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:04,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:04,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089786126] [2023-11-29 05:25:04,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:04,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950822563] [2023-11-29 05:25:04,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950822563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:04,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:04,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:04,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557057406] [2023-11-29 05:25:04,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:04,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:04,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:04,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:04,870 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:25:04,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:04,959 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2023-11-29 05:25:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:04,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-29 05:25:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:04,962 INFO L225 Difference]: With dead ends: 171 [2023-11-29 05:25:04,962 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 05:25:04,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 05:25:04,965 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:04,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 05:25:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-11-29 05:25:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.721311475409836) internal successors, (105), 88 states have internal predecessors, (105), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:25:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-11-29 05:25:04,981 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 16 [2023-11-29 05:25:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:04,982 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-11-29 05:25:04,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:25:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-11-29 05:25:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 05:25:04,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:04,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:04,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:05,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 05:25:05,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:05,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -679338954, now seen corresponding path program 1 times [2023-11-29 05:25:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063934576] [2023-11-29 05:25:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:05,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:05,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042384405] [2023-11-29 05:25:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:05,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:05,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:05,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:25:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:05,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:05,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:05,301 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 05:25:05,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:05,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063934576] [2023-11-29 05:25:05,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042384405] [2023-11-29 05:25:05,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042384405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:05,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:05,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:05,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709372401] [2023-11-29 05:25:05,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:05,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:05,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:05,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:05,305 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:25:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:05,372 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2023-11-29 05:25:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:05,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 05:25:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:05,374 INFO L225 Difference]: With dead ends: 118 [2023-11-29 05:25:05,374 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 05:25:05,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 05:25:05,376 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:05,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 120 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:05,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 05:25:05,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2023-11-29 05:25:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:25:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2023-11-29 05:25:05,390 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 17 [2023-11-29 05:25:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:05,390 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2023-11-29 05:25:05,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 05:25:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2023-11-29 05:25:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 05:25:05,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:05,392 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:05,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:25:05,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:05,598 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:05,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:05,598 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2023-11-29 05:25:05,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:05,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860606044] [2023-11-29 05:25:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:05,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:05,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157376291] [2023-11-29 05:25:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:05,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:05,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:05,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:25:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:05,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:25:05,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:05,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860606044] [2023-11-29 05:25:05,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157376291] [2023-11-29 05:25:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157376291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:05,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:05,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894575377] [2023-11-29 05:25:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:05,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:05,710 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:05,759 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2023-11-29 05:25:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:05,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-29 05:25:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:05,761 INFO L225 Difference]: With dead ends: 132 [2023-11-29 05:25:05,762 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 05:25:05,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 05:25:05,763 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:05,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 05:25:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-29 05:25:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 99 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:25:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2023-11-29 05:25:05,777 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 24 [2023-11-29 05:25:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2023-11-29 05:25:05,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2023-11-29 05:25:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:25:05,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:05,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:05,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:25:05,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:05,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:05,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2023-11-29 05:25:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498151113] [2023-11-29 05:25:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:05,998 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:05,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020672192] [2023-11-29 05:25:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:05,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:05,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:06,000 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:06,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:25:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:06,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:06,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:06,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498151113] [2023-11-29 05:25:06,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:06,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020672192] [2023-11-29 05:25:06,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020672192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:06,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415067523] [2023-11-29 05:25:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:06,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:06,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:06,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:06,108 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:06,175 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2023-11-29 05:25:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:25:06,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 05:25:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:06,177 INFO L225 Difference]: With dead ends: 113 [2023-11-29 05:25:06,178 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 05:25:06,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:25:06,179 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:06,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 195 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 05:25:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 05:25:06,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.63013698630137) internal successors, (119), 97 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:25:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2023-11-29 05:25:06,192 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 25 [2023-11-29 05:25:06,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:06,192 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2023-11-29 05:25:06,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2023-11-29 05:25:06,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 05:25:06,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:06,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:06,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:25:06,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:06,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:06,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash -660978842, now seen corresponding path program 1 times [2023-11-29 05:25:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:06,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342285714] [2023-11-29 05:25:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:06,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:06,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842881995] [2023-11-29 05:25:06,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:06,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:06,412 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:06,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:25:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:06,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:25:06,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:06,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342285714] [2023-11-29 05:25:06,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842881995] [2023-11-29 05:25:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842881995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:06,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:06,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971005000] [2023-11-29 05:25:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:06,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:06,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:06,482 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:06,529 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2023-11-29 05:25:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:06,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 05:25:06,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:06,531 INFO L225 Difference]: With dead ends: 125 [2023-11-29 05:25:06,531 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 05:25:06,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 05:25:06,533 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 25 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:06,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 05:25:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2023-11-29 05:25:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 97 states have internal predecessors, (118), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:25:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2023-11-29 05:25:06,545 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 25 [2023-11-29 05:25:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:06,546 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2023-11-29 05:25:06,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2023-11-29 05:25:06,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 05:25:06,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:06,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:06,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:25:06,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:06,748 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:06,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:06,749 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2023-11-29 05:25:06,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:06,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889461552] [2023-11-29 05:25:06,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:06,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:06,760 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:06,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706769648] [2023-11-29 05:25:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:06,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:06,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:06,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:06,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:25:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:06,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:06,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:06,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:06,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889461552] [2023-11-29 05:25:06,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706769648] [2023-11-29 05:25:06,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706769648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:06,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:06,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:06,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297306645] [2023-11-29 05:25:06,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:06,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:06,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:06,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:06,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:06,873 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:06,955 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2023-11-29 05:25:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:25:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-29 05:25:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:06,957 INFO L225 Difference]: With dead ends: 128 [2023-11-29 05:25:06,957 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 05:25:06,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 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 05:25:06,959 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 16 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:06,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 288 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 05:25:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2023-11-29 05:25:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 100 states have internal predecessors, (119), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 05:25:06,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2023-11-29 05:25:06,971 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 26 [2023-11-29 05:25:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:06,971 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2023-11-29 05:25:06,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:06,972 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2023-11-29 05:25:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 05:25:06,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:06,973 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:06,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:25:07,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 05:25:07,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:07,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581515, now seen corresponding path program 1 times [2023-11-29 05:25:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605561478] [2023-11-29 05:25:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:07,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984965441] [2023-11-29 05:25:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:07,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:07,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:07,189 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:07,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:25:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:07,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:07,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:07,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:07,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:07,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605561478] [2023-11-29 05:25:07,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:07,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984965441] [2023-11-29 05:25:07,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984965441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:07,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:07,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:07,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686867412] [2023-11-29 05:25:07,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:07,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:07,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:07,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:07,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:07,306 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:07,389 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2023-11-29 05:25:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:07,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-29 05:25:07,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:07,391 INFO L225 Difference]: With dead ends: 160 [2023-11-29 05:25:07,391 INFO L226 Difference]: Without dead ends: 159 [2023-11-29 05:25:07,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 05:25:07,392 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 51 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:07,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 83 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-29 05:25:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2023-11-29 05:25:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 116 states have internal predecessors, (146), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 05:25:07,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2023-11-29 05:25:07,404 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 28 [2023-11-29 05:25:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:07,405 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2023-11-29 05:25:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2023-11-29 05:25:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 05:25:07,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:07,406 INFO L195 NwaCegarLoop]: trace histogram [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 05:25:07,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:25:07,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 05:25:07,608 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:07,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1587288683, now seen corresponding path program 1 times [2023-11-29 05:25:07,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:07,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009779621] [2023-11-29 05:25:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:07,619 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:07,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582544511] [2023-11-29 05:25:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:07,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:07,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:07,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:07,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:25:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:07,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:07,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:07,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:07,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:07,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009779621] [2023-11-29 05:25:07,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:07,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582544511] [2023-11-29 05:25:07,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582544511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:07,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:07,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:07,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285342226] [2023-11-29 05:25:07,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:07,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:07,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:07,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:07,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:07,753 INFO L87 Difference]: Start difference. First operand 133 states and 174 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:07,814 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2023-11-29 05:25:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-29 05:25:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:07,816 INFO L225 Difference]: With dead ends: 159 [2023-11-29 05:25:07,816 INFO L226 Difference]: Without dead ends: 158 [2023-11-29 05:25:07,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 05:25:07,817 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 49 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:07,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 84 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-29 05:25:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 133. [2023-11-29 05:25:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5543478260869565) internal successors, (143), 116 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 05:25:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 171 transitions. [2023-11-29 05:25:07,829 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 171 transitions. Word has length 29 [2023-11-29 05:25:07,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:07,830 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 171 transitions. [2023-11-29 05:25:07,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 171 transitions. [2023-11-29 05:25:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 05:25:07,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:07,831 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:07,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:25:08,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 05:25:08,036 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:08,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:08,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1961309005, now seen corresponding path program 1 times [2023-11-29 05:25:08,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:08,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037252983] [2023-11-29 05:25:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:08,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:08,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379748626] [2023-11-29 05:25:08,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:08,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:08,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:08,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:08,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:25:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:08,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:08,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:08,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:08,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037252983] [2023-11-29 05:25:08,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379748626] [2023-11-29 05:25:08,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379748626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:08,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:08,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65234340] [2023-11-29 05:25:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:08,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:08,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:08,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:08,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:08,173 INFO L87 Difference]: Start difference. First operand 133 states and 171 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:08,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:08,230 INFO L93 Difference]: Finished difference Result 154 states and 182 transitions. [2023-11-29 05:25:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:08,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 05:25:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:08,232 INFO L225 Difference]: With dead ends: 154 [2023-11-29 05:25:08,232 INFO L226 Difference]: Without dead ends: 150 [2023-11-29 05:25:08,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 05:25:08,233 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:08,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 90 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:08,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-29 05:25:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2023-11-29 05:25:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 05:25:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 171 transitions. [2023-11-29 05:25:08,244 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 171 transitions. Word has length 30 [2023-11-29 05:25:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:08,244 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 171 transitions. [2023-11-29 05:25:08,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 171 transitions. [2023-11-29 05:25:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 05:25:08,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:08,246 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:08,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:25:08,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:08,452 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:08,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2023-11-29 05:25:08,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:08,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179500095] [2023-11-29 05:25:08,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:08,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:08,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:08,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802667303] [2023-11-29 05:25:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:08,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:08,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:08,462 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:08,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:25:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:08,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:08,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:08,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:08,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179500095] [2023-11-29 05:25:08,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:08,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802667303] [2023-11-29 05:25:08,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802667303] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:08,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:08,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 05:25:08,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680298196] [2023-11-29 05:25:08,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:08,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:25:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:25:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:08,654 INFO L87 Difference]: Start difference. First operand 136 states and 171 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:25:08,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:08,799 INFO L93 Difference]: Finished difference Result 278 states and 347 transitions. [2023-11-29 05:25:08,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:25:08,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-11-29 05:25:08,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:08,801 INFO L225 Difference]: With dead ends: 278 [2023-11-29 05:25:08,801 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 05:25:08,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:25:08,803 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 61 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:08,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 410 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:08,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 05:25:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2023-11-29 05:25:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4841269841269842) internal successors, (187), 150 states have internal predecessors, (187), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:25:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2023-11-29 05:25:08,834 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 30 [2023-11-29 05:25:08,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:08,834 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2023-11-29 05:25:08,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:25:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2023-11-29 05:25:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 05:25:08,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:08,836 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 05:25:08,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:25:09,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:09,037 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:09,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash 671037101, now seen corresponding path program 1 times [2023-11-29 05:25:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:09,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560666908] [2023-11-29 05:25:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:09,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116230000] [2023-11-29 05:25:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:09,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:09,047 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:09,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:25:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:09,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:09,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:25:09,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:09,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:09,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560666908] [2023-11-29 05:25:09,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:09,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116230000] [2023-11-29 05:25:09,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116230000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:09,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:09,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:09,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130713544] [2023-11-29 05:25:09,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:09,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:09,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:09,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:09,192 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:09,306 INFO L93 Difference]: Finished difference Result 181 states and 231 transitions. [2023-11-29 05:25:09,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:09,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-29 05:25:09,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:09,308 INFO L225 Difference]: With dead ends: 181 [2023-11-29 05:25:09,308 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 05:25:09,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 05:25:09,309 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:09,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 149 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 05:25:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2023-11-29 05:25:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4761904761904763) internal successors, (186), 150 states have internal predecessors, (186), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:25:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 226 transitions. [2023-11-29 05:25:09,322 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 226 transitions. Word has length 31 [2023-11-29 05:25:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:09,322 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 226 transitions. [2023-11-29 05:25:09,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 226 transitions. [2023-11-29 05:25:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 05:25:09,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:09,323 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:09,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:25:09,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:09,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:09,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2023-11-29 05:25:09,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:09,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024025487] [2023-11-29 05:25:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:09,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:09,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972263094] [2023-11-29 05:25:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:09,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:09,538 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:09,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:25:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:09,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:09,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:25:09,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:09,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024025487] [2023-11-29 05:25:09,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972263094] [2023-11-29 05:25:09,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972263094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:09,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:09,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:09,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287082174] [2023-11-29 05:25:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:09,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:09,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:09,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:09,664 INFO L87 Difference]: Start difference. First operand 175 states and 226 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 05:25:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:09,742 INFO L93 Difference]: Finished difference Result 187 states and 234 transitions. [2023-11-29 05:25:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 42 [2023-11-29 05:25:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:09,744 INFO L225 Difference]: With dead ends: 187 [2023-11-29 05:25:09,744 INFO L226 Difference]: Without dead ends: 178 [2023-11-29 05:25:09,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 05:25:09,745 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:09,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 113 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:09,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-29 05:25:09,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 171. [2023-11-29 05:25:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 126 states have (on average 1.380952380952381) internal successors, (174), 146 states have internal predecessors, (174), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:25:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2023-11-29 05:25:09,761 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 42 [2023-11-29 05:25:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:09,761 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2023-11-29 05:25:09,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 05:25:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2023-11-29 05:25:09,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 05:25:09,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:09,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:09,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:25:09,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:25:09,964 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:09,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1221277835, now seen corresponding path program 1 times [2023-11-29 05:25:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:09,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915766778] [2023-11-29 05:25:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:09,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:09,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122269205] [2023-11-29 05:25:09,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:09,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:09,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:09,975 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:09,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:25:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:10,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:10,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:25:10,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:10,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:10,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915766778] [2023-11-29 05:25:10,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:10,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122269205] [2023-11-29 05:25:10,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122269205] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:10,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 05:25:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836276485] [2023-11-29 05:25:10,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:10,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:10,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:10,266 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 05:25:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:10,398 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2023-11-29 05:25:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:10,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 43 [2023-11-29 05:25:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:10,401 INFO L225 Difference]: With dead ends: 263 [2023-11-29 05:25:10,401 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 05:25:10,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:10,402 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:10,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 125 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 05:25:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 225. [2023-11-29 05:25:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 194 states have internal predecessors, (244), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:25:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 296 transitions. [2023-11-29 05:25:10,429 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 296 transitions. Word has length 43 [2023-11-29 05:25:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:10,429 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 296 transitions. [2023-11-29 05:25:10,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 05:25:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 296 transitions. [2023-11-29 05:25:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 05:25:10,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:10,431 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:25:10,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:10,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:10,632 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:10,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1982985848, now seen corresponding path program 1 times [2023-11-29 05:25:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:10,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012170722] [2023-11-29 05:25:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:10,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:10,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047508953] [2023-11-29 05:25:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:10,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:10,644 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:10,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:25:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:10,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:10,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:25:10,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:10,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:10,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012170722] [2023-11-29 05:25:10,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:10,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047508953] [2023-11-29 05:25:10,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047508953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:10,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:10,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:10,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653053078] [2023-11-29 05:25:10,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:10,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:10,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:10,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:10,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:10,800 INFO L87 Difference]: Start difference. First operand 225 states and 296 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 05:25:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:10,881 INFO L93 Difference]: Finished difference Result 230 states and 300 transitions. [2023-11-29 05:25:10,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:10,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 05:25:10,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:10,883 INFO L225 Difference]: With dead ends: 230 [2023-11-29 05:25:10,883 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 05:25:10,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:10,885 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:10,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 166 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 05:25:10,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-11-29 05:25:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4233128834355828) internal successors, (232), 183 states have internal predecessors, (232), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 05:25:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 280 transitions. [2023-11-29 05:25:10,902 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 280 transitions. Word has length 48 [2023-11-29 05:25:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:10,903 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 280 transitions. [2023-11-29 05:25:10,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 05:25:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 280 transitions. [2023-11-29 05:25:10,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 05:25:10,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:10,904 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:25:10,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:25:11,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:11,104 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:11,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash 424230821, now seen corresponding path program 1 times [2023-11-29 05:25:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207546505] [2023-11-29 05:25:11,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:11,113 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:11,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759925331] [2023-11-29 05:25:11,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:11,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:11,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:11,114 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:11,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:25:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:11,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:11,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:11,209 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:25:11,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:25:11,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:11,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207546505] [2023-11-29 05:25:11,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:11,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759925331] [2023-11-29 05:25:11,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759925331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:11,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:11,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 05:25:11,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083048669] [2023-11-29 05:25:11,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:11,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:11,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:11,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:11,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:11,273 INFO L87 Difference]: Start difference. First operand 212 states and 280 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 05:25:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:11,424 INFO L93 Difference]: Finished difference Result 353 states and 437 transitions. [2023-11-29 05:25:11,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:25:11,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 51 [2023-11-29 05:25:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:11,427 INFO L225 Difference]: With dead ends: 353 [2023-11-29 05:25:11,427 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 05:25:11,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:11,428 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 191 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:11,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 220 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:11,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 05:25:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 275. [2023-11-29 05:25:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 217 states have (on average 1.4377880184331797) internal successors, (312), 237 states have internal predecessors, (312), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 05:25:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 378 transitions. [2023-11-29 05:25:11,445 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 378 transitions. Word has length 51 [2023-11-29 05:25:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:11,445 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 378 transitions. [2023-11-29 05:25:11,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 05:25:11,445 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 378 transitions. [2023-11-29 05:25:11,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 05:25:11,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:11,446 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:25:11,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:25:11,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:25:11,648 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:11,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:11,649 INFO L85 PathProgramCache]: Analyzing trace with hash 266206954, now seen corresponding path program 1 times [2023-11-29 05:25:11,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:11,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916265144] [2023-11-29 05:25:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:11,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:11,654 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:11,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726240683] [2023-11-29 05:25:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:11,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:11,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:11,656 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:11,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:25:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:11,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:25:11,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:25:11,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:25:11,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:11,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916265144] [2023-11-29 05:25:11,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:11,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726240683] [2023-11-29 05:25:11,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726240683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:11,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:11,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 05:25:11,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110515687] [2023-11-29 05:25:11,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:11,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:25:11,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:11,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:25:11,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:25:11,894 INFO L87 Difference]: Start difference. First operand 275 states and 378 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 05:25:12,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:12,146 INFO L93 Difference]: Finished difference Result 321 states and 420 transitions. [2023-11-29 05:25:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 05:25:12,147 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 52 [2023-11-29 05:25:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:12,150 INFO L225 Difference]: With dead ends: 321 [2023-11-29 05:25:12,150 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 05:25:12,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-29 05:25:12,151 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 89 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:12,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 551 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:12,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 05:25:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 297. [2023-11-29 05:25:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 237 states have (on average 1.409282700421941) internal successors, (334), 257 states have internal predecessors, (334), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 05:25:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 400 transitions. [2023-11-29 05:25:12,174 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 400 transitions. Word has length 52 [2023-11-29 05:25:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:12,175 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 400 transitions. [2023-11-29 05:25:12,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 05:25:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 400 transitions. [2023-11-29 05:25:12,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:25:12,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:12,176 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 05:25:12,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:12,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 05:25:12,377 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:12,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801452, now seen corresponding path program 1 times [2023-11-29 05:25:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:12,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131534620] [2023-11-29 05:25:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:12,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:12,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200475097] [2023-11-29 05:25:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:12,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:12,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:12,389 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:12,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:25:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:12,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:12,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:12,528 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:25:12,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:12,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:12,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131534620] [2023-11-29 05:25:12,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:12,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200475097] [2023-11-29 05:25:12,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200475097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:12,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:12,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:12,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190765347] [2023-11-29 05:25:12,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:12,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:12,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:12,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:12,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:12,531 INFO L87 Difference]: Start difference. First operand 297 states and 400 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:12,593 INFO L93 Difference]: Finished difference Result 321 states and 425 transitions. [2023-11-29 05:25:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:12,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2023-11-29 05:25:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:12,598 INFO L225 Difference]: With dead ends: 321 [2023-11-29 05:25:12,598 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 05:25:12,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 05:25:12,599 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 31 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:12,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 82 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:12,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 05:25:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 294. [2023-11-29 05:25:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 234 states have (on average 1.3547008547008548) internal successors, (317), 254 states have internal predecessors, (317), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 05:25:12,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 383 transitions. [2023-11-29 05:25:12,621 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 383 transitions. Word has length 57 [2023-11-29 05:25:12,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:12,621 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 383 transitions. [2023-11-29 05:25:12,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 05:25:12,622 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 383 transitions. [2023-11-29 05:25:12,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 05:25:12,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:12,623 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 05:25:12,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:12,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 05:25:12,823 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:12,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1114975756, now seen corresponding path program 2 times [2023-11-29 05:25:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813300283] [2023-11-29 05:25:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:12,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:12,829 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:12,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806417610] [2023-11-29 05:25:12,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:12,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:12,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:12,831 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:12,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:25:12,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:25:12,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:12,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:25:12,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:13,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:13,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:13,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813300283] [2023-11-29 05:25:13,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:13,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806417610] [2023-11-29 05:25:13,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806417610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:13,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:13,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:25:13,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037800170] [2023-11-29 05:25:13,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:13,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:13,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:13,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:25:13,102 INFO L87 Difference]: Start difference. First operand 294 states and 383 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 05:25:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:13,242 INFO L93 Difference]: Finished difference Result 430 states and 544 transitions. [2023-11-29 05:25:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:13,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 69 [2023-11-29 05:25:13,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:13,245 INFO L225 Difference]: With dead ends: 430 [2023-11-29 05:25:13,245 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 05:25:13,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:25:13,246 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 163 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:13,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 157 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 05:25:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 308. [2023-11-29 05:25:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 246 states have (on average 1.329268292682927) internal successors, (327), 266 states have internal predecessors, (327), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:25:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 397 transitions. [2023-11-29 05:25:13,272 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 397 transitions. Word has length 69 [2023-11-29 05:25:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:13,272 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 397 transitions. [2023-11-29 05:25:13,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 05:25:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 397 transitions. [2023-11-29 05:25:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 05:25:13,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:13,274 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:13,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:13,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:13,474 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:13,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1868200099, now seen corresponding path program 1 times [2023-11-29 05:25:13,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:13,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126136054] [2023-11-29 05:25:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:13,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:13,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:13,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006235868] [2023-11-29 05:25:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:13,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:13,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:13,484 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:13,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 05:25:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:13,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:25:13,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 05:25:13,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:13,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126136054] [2023-11-29 05:25:13,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006235868] [2023-11-29 05:25:13,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006235868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:13,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:13,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:25:13,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489995596] [2023-11-29 05:25:13,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:13,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:13,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:13,543 INFO L87 Difference]: Start difference. First operand 308 states and 397 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:13,578 INFO L93 Difference]: Finished difference Result 308 states and 397 transitions. [2023-11-29 05:25:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:13,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2023-11-29 05:25:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:13,580 INFO L225 Difference]: With dead ends: 308 [2023-11-29 05:25:13,580 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 05:25:13,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 05:25:13,581 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:13,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 05:25:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-11-29 05:25:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 246 states have (on average 1.3130081300813008) internal successors, (323), 265 states have internal predecessors, (323), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:25:13,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 393 transitions. [2023-11-29 05:25:13,599 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 393 transitions. Word has length 76 [2023-11-29 05:25:13,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:13,600 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 393 transitions. [2023-11-29 05:25:13,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:13,600 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 393 transitions. [2023-11-29 05:25:13,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 05:25:13,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:13,601 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:13,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 05:25:13,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:13,801 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:13,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2079628105, now seen corresponding path program 1 times [2023-11-29 05:25:13,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:13,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796940427] [2023-11-29 05:25:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:13,811 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:13,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34965129] [2023-11-29 05:25:13,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:13,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:13,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:13,813 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 05:25:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:13,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:25:13,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:14,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:14,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796940427] [2023-11-29 05:25:14,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:14,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34965129] [2023-11-29 05:25:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34965129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:14,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96505813] [2023-11-29 05:25:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:14,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:14,052 INFO L87 Difference]: Start difference. First operand 307 states and 393 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, (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 05:25:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:14,149 INFO L93 Difference]: Finished difference Result 443 states and 577 transitions. [2023-11-29 05:25:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:14,150 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, (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 77 [2023-11-29 05:25:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:14,153 INFO L225 Difference]: With dead ends: 443 [2023-11-29 05:25:14,153 INFO L226 Difference]: Without dead ends: 441 [2023-11-29 05:25:14,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 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 05:25:14,154 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:14,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 125 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-29 05:25:14,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 415. [2023-11-29 05:25:14,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 342 states have (on average 1.3391812865497077) internal successors, (458), 361 states have internal predecessors, (458), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 05:25:14,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 552 transitions. [2023-11-29 05:25:14,185 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 552 transitions. Word has length 77 [2023-11-29 05:25:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:14,186 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 552 transitions. [2023-11-29 05:25:14,186 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, (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 05:25:14,186 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 552 transitions. [2023-11-29 05:25:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 05:25:14,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:14,187 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 05:25:14,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 05:25:14,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:14,388 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:14,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:14,388 INFO L85 PathProgramCache]: Analyzing trace with hash -43961697, now seen corresponding path program 1 times [2023-11-29 05:25:14,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:14,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974580368] [2023-11-29 05:25:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:14,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:14,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62901960] [2023-11-29 05:25:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:14,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:14,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 05:25:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:14,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:14,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 05:25:14,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:14,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:14,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974580368] [2023-11-29 05:25:14,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:14,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62901960] [2023-11-29 05:25:14,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62901960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:14,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:14,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:14,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713742474] [2023-11-29 05:25:14,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:14,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:14,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:14,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:14,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:14,625 INFO L87 Difference]: Start difference. First operand 415 states and 552 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:14,766 INFO L93 Difference]: Finished difference Result 438 states and 573 transitions. [2023-11-29 05:25:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:14,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2023-11-29 05:25:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:14,772 INFO L225 Difference]: With dead ends: 438 [2023-11-29 05:25:14,772 INFO L226 Difference]: Without dead ends: 437 [2023-11-29 05:25:14,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:14,773 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 82 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:14,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 146 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:14,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-29 05:25:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 424. [2023-11-29 05:25:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 370 states have internal predecessors, (466), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 05:25:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 560 transitions. [2023-11-29 05:25:14,832 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 560 transitions. Word has length 78 [2023-11-29 05:25:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:14,833 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 560 transitions. [2023-11-29 05:25:14,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 560 transitions. [2023-11-29 05:25:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 05:25:14,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:14,834 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:14,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 05:25:15,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 05:25:15,035 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:15,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1362812487, now seen corresponding path program 1 times [2023-11-29 05:25:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453906185] [2023-11-29 05:25:15,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:15,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:15,045 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485538350] [2023-11-29 05:25:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:15,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:15,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:15,047 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:15,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 05:25:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:15,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:15,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 05:25:15,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453906185] [2023-11-29 05:25:15,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485538350] [2023-11-29 05:25:15,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485538350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:15,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:15,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:15,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603284353] [2023-11-29 05:25:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:15,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:15,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:15,230 INFO L87 Difference]: Start difference. First operand 424 states and 560 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:15,323 INFO L93 Difference]: Finished difference Result 434 states and 566 transitions. [2023-11-29 05:25:15,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2023-11-29 05:25:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:15,327 INFO L225 Difference]: With dead ends: 434 [2023-11-29 05:25:15,327 INFO L226 Difference]: Without dead ends: 432 [2023-11-29 05:25:15,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 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 05:25:15,328 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 36 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:15,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 113 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-29 05:25:15,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2023-11-29 05:25:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 354 states have (on average 1.3022598870056497) internal successors, (461), 373 states have internal predecessors, (461), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 05:25:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 555 transitions. [2023-11-29 05:25:15,367 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 555 transitions. Word has length 79 [2023-11-29 05:25:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:15,367 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 555 transitions. [2023-11-29 05:25:15,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 555 transitions. [2023-11-29 05:25:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 05:25:15,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:15,369 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 05:25:15,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 05:25:15,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 05:25:15,569 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:15,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383490, now seen corresponding path program 1 times [2023-11-29 05:25:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:15,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472203586] [2023-11-29 05:25:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:15,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248193491] [2023-11-29 05:25:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:15,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:15,581 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:15,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 05:25:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:15,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:25:15,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:25:15,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:15,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472203586] [2023-11-29 05:25:15,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248193491] [2023-11-29 05:25:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248193491] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:15,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:15,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 05:25:15,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135575793] [2023-11-29 05:25:15,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:15,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:25:15,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:25:15,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:25:15,947 INFO L87 Difference]: Start difference. First operand 427 states and 555 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 05:25:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:16,310 INFO L93 Difference]: Finished difference Result 776 states and 985 transitions. [2023-11-29 05:25:16,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 05:25:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 84 [2023-11-29 05:25:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:16,314 INFO L225 Difference]: With dead ends: 776 [2023-11-29 05:25:16,314 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 05:25:16,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 05:25:16,317 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 168 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:16,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 715 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:16,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 05:25:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 524. [2023-11-29 05:25:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 441 states have (on average 1.2789115646258504) internal successors, (564), 460 states have internal predecessors, (564), 55 states have call successors, (55), 8 states have call predecessors, (55), 8 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 05:25:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 674 transitions. [2023-11-29 05:25:16,359 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 674 transitions. Word has length 84 [2023-11-29 05:25:16,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:16,359 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 674 transitions. [2023-11-29 05:25:16,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 05:25:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 674 transitions. [2023-11-29 05:25:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 05:25:16,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:16,361 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:16,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 05:25:16,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 05:25:16,561 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:16,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:16,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383508, now seen corresponding path program 1 times [2023-11-29 05:25:16,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:16,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371476449] [2023-11-29 05:25:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:16,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:16,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:16,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682254388] [2023-11-29 05:25:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:16,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:16,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:16,572 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:16,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 05:25:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:16,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 05:25:16,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:16,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:17,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:17,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371476449] [2023-11-29 05:25:17,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:17,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682254388] [2023-11-29 05:25:17,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682254388] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:17,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:17,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 05:25:17,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588995071] [2023-11-29 05:25:17,739 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:17,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:25:17,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:17,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:25:17,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:17,741 INFO L87 Difference]: Start difference. First operand 524 states and 674 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 05:25:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:18,067 INFO L93 Difference]: Finished difference Result 607 states and 758 transitions. [2023-11-29 05:25:18,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:25:18,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 84 [2023-11-29 05:25:18,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:18,069 INFO L225 Difference]: With dead ends: 607 [2023-11-29 05:25:18,069 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 05:25:18,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:25:18,070 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 80 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:18,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:25:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 05:25:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2023-11-29 05:25:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.2767123287671234) internal successors, (466), 384 states have internal predecessors, (466), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 05:25:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 564 transitions. [2023-11-29 05:25:18,100 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 564 transitions. Word has length 84 [2023-11-29 05:25:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:18,100 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 564 transitions. [2023-11-29 05:25:18,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 05:25:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 564 transitions. [2023-11-29 05:25:18,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 05:25:18,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:18,102 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 05:25:18,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 05:25:18,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:25:18,306 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:18,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash 803215874, now seen corresponding path program 1 times [2023-11-29 05:25:18,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:18,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341168463] [2023-11-29 05:25:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:18,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:18,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:18,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188871052] [2023-11-29 05:25:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:18,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:18,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:18,317 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:18,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 05:25:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:18,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:25:18,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:18,655 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:18,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:19,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:19,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341168463] [2023-11-29 05:25:19,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:19,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188871052] [2023-11-29 05:25:19,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188871052] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:19,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:19,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:25:19,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727501479] [2023-11-29 05:25:19,151 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:19,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:19,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:19,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:19,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:25:19,153 INFO L87 Difference]: Start difference. First operand 442 states and 564 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 05:25:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:19,289 INFO L93 Difference]: Finished difference Result 458 states and 571 transitions. [2023-11-29 05:25:19,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 85 [2023-11-29 05:25:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:19,292 INFO L225 Difference]: With dead ends: 458 [2023-11-29 05:25:19,292 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 05:25:19,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:25:19,293 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:19,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 154 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 05:25:19,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 442. [2023-11-29 05:25:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.273972602739726) internal successors, (465), 384 states have internal predecessors, (465), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 05:25:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 563 transitions. [2023-11-29 05:25:19,328 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 563 transitions. Word has length 85 [2023-11-29 05:25:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:19,329 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 563 transitions. [2023-11-29 05:25:19,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 05:25:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 563 transitions. [2023-11-29 05:25:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 05:25:19,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:19,330 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:19,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 05:25:19,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:25:19,531 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:19,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash -870111594, now seen corresponding path program 1 times [2023-11-29 05:25:19,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:19,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965497547] [2023-11-29 05:25:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:19,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:19,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872753611] [2023-11-29 05:25:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:19,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:19,539 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:19,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 05:25:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:19,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:19,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 05:25:19,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:19,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965497547] [2023-11-29 05:25:19,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:19,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872753611] [2023-11-29 05:25:19,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872753611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:19,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:19,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736937025] [2023-11-29 05:25:19,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:19,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:19,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:19,619 INFO L87 Difference]: Start difference. First operand 442 states and 563 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:19,883 INFO L93 Difference]: Finished difference Result 472 states and 594 transitions. [2023-11-29 05:25:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:25:19,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2023-11-29 05:25:19,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:19,886 INFO L225 Difference]: With dead ends: 472 [2023-11-29 05:25:19,886 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 05:25:19,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:25:19,887 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 78 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:19,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 05:25:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2023-11-29 05:25:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 380 states have (on average 1.2605263157894737) internal successors, (479), 398 states have internal predecessors, (479), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 05:25:19,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 577 transitions. [2023-11-29 05:25:19,938 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 577 transitions. Word has length 86 [2023-11-29 05:25:19,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:19,938 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 577 transitions. [2023-11-29 05:25:19,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:19,939 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 577 transitions. [2023-11-29 05:25:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 05:25:19,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:19,940 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-29 05:25:19,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 05:25:20,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 05:25:20,140 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:20,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:20,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1203655548, now seen corresponding path program 1 times [2023-11-29 05:25:20,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:20,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878602708] [2023-11-29 05:25:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:20,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:20,149 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:20,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220481613] [2023-11-29 05:25:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:20,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:20,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:20,150 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:20,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 05:25:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:20,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:25:20,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 05:25:20,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:20,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878602708] [2023-11-29 05:25:20,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:20,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220481613] [2023-11-29 05:25:20,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220481613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:20,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:20,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 05:25:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568578318] [2023-11-29 05:25:20,800 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:20,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:25:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:25:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:25:20,801 INFO L87 Difference]: Start difference. First operand 456 states and 577 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 05:25:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:21,061 INFO L93 Difference]: Finished difference Result 465 states and 584 transitions. [2023-11-29 05:25:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:25:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 87 [2023-11-29 05:25:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:21,064 INFO L225 Difference]: With dead ends: 465 [2023-11-29 05:25:21,064 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 05:25:21,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:25:21,065 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 57 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:21,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 272 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 05:25:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-11-29 05:25:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 383 states have (on average 1.2584856396866841) internal successors, (482), 401 states have internal predecessors, (482), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 05:25:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 580 transitions. [2023-11-29 05:25:21,102 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 580 transitions. Word has length 87 [2023-11-29 05:25:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:21,103 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 580 transitions. [2023-11-29 05:25:21,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 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 05:25:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 580 transitions. [2023-11-29 05:25:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 05:25:21,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:21,104 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 05:25:21,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:21,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 05:25:21,304 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:21,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash 2118101939, now seen corresponding path program 3 times [2023-11-29 05:25:21,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:21,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099312301] [2023-11-29 05:25:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:21,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:21,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688950441] [2023-11-29 05:25:21,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:25:21,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:21,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:21,314 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:21,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 05:25:21,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:25:21,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:21,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:21,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-29 05:25:21,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:21,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:21,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099312301] [2023-11-29 05:25:21,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:21,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688950441] [2023-11-29 05:25:21,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688950441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:21,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:21,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766077560] [2023-11-29 05:25:21,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:21,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:21,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:21,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:21,445 INFO L87 Difference]: Start difference. First operand 459 states and 580 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 05:25:21,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:21,502 INFO L93 Difference]: Finished difference Result 459 states and 580 transitions. [2023-11-29 05:25:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:21,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 95 [2023-11-29 05:25:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:21,505 INFO L225 Difference]: With dead ends: 459 [2023-11-29 05:25:21,505 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 05:25:21,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 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 05:25:21,506 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:21,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 54 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:21,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 05:25:21,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2023-11-29 05:25:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2142857142857142) internal successors, (357), 309 states have internal predecessors, (357), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 05:25:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 435 transitions. [2023-11-29 05:25:21,538 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 435 transitions. Word has length 95 [2023-11-29 05:25:21,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:21,539 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 435 transitions. [2023-11-29 05:25:21,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 05:25:21,539 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 435 transitions. [2023-11-29 05:25:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 05:25:21,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:21,541 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 05:25:21,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 05:25:21,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 05:25:21,744 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:21,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1494603811, now seen corresponding path program 1 times [2023-11-29 05:25:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797237221] [2023-11-29 05:25:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:21,754 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824358961] [2023-11-29 05:25:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:21,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:21,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:21,756 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:21,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 05:25:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:21,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:25:21,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 05:25:22,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:23,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797237221] [2023-11-29 05:25:23,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:23,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824358961] [2023-11-29 05:25:23,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824358961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:23,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:23,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 05:25:23,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153231505] [2023-11-29 05:25:23,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:23,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:25:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:25:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:25:23,510 INFO L87 Difference]: Start difference. First operand 357 states and 435 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:25:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:23,811 INFO L93 Difference]: Finished difference Result 359 states and 435 transitions. [2023-11-29 05:25:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:25:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2023-11-29 05:25:23,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:23,813 INFO L225 Difference]: With dead ends: 359 [2023-11-29 05:25:23,813 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 05:25:23,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:25:23,814 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 13 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:23,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 234 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:25:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 05:25:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-29 05:25:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2108843537414966) internal successors, (356), 309 states have internal predecessors, (356), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 05:25:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 434 transitions. [2023-11-29 05:25:23,844 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 434 transitions. Word has length 101 [2023-11-29 05:25:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:23,845 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 434 transitions. [2023-11-29 05:25:23,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:25:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 434 transitions. [2023-11-29 05:25:23,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 05:25:23,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:23,846 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 05:25:23,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 05:25:24,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:24,047 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:24,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:24,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1795189669, now seen corresponding path program 1 times [2023-11-29 05:25:24,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:24,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130757866] [2023-11-29 05:25:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:24,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:24,057 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123574362] [2023-11-29 05:25:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:24,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:24,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:24,059 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:24,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 05:25:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:24,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:24,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-29 05:25:24,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:24,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:24,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130757866] [2023-11-29 05:25:24,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:24,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123574362] [2023-11-29 05:25:24,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123574362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:24,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:24,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187470900] [2023-11-29 05:25:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:24,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:24,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:24,166 INFO L87 Difference]: Start difference. First operand 357 states and 434 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 05:25:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:24,342 INFO L93 Difference]: Finished difference Result 361 states and 434 transitions. [2023-11-29 05:25:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:25:24,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 103 [2023-11-29 05:25:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:24,344 INFO L225 Difference]: With dead ends: 361 [2023-11-29 05:25:24,344 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 05:25:24,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:25:24,345 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:24,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 223 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 05:25:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2023-11-29 05:25:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 254 states have (on average 1.236220472440945) internal successors, (314), 268 states have internal predecessors, (314), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 05:25:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 384 transitions. [2023-11-29 05:25:24,362 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 384 transitions. Word has length 103 [2023-11-29 05:25:24,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:24,362 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 384 transitions. [2023-11-29 05:25:24,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 05:25:24,363 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 384 transitions. [2023-11-29 05:25:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 05:25:24,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:24,363 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2023-11-29 05:25:24,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 05:25:24,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:24,564 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:24,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1390862043, now seen corresponding path program 1 times [2023-11-29 05:25:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:24,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379430783] [2023-11-29 05:25:24,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:24,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:24,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979629163] [2023-11-29 05:25:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:24,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:24,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:24,575 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:24,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 05:25:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:24,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:24,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 05:25:24,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 05:25:24,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379430783] [2023-11-29 05:25:24,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979629163] [2023-11-29 05:25:24,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979629163] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:24,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:24,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 05:25:24,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896911866] [2023-11-29 05:25:24,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:24,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:25:24,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:24,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:25:24,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:24,779 INFO L87 Difference]: Start difference. First operand 310 states and 384 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 05:25:25,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:25,011 INFO L93 Difference]: Finished difference Result 832 states and 1013 transitions. [2023-11-29 05:25:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:25:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 105 [2023-11-29 05:25:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:25,016 INFO L225 Difference]: With dead ends: 832 [2023-11-29 05:25:25,016 INFO L226 Difference]: Without dead ends: 831 [2023-11-29 05:25:25,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:25,018 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 397 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:25,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 400 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-11-29 05:25:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 368. [2023-11-29 05:25:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 300 states have (on average 1.2533333333333334) internal successors, (376), 314 states have internal predecessors, (376), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 05:25:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 470 transitions. [2023-11-29 05:25:25,059 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 470 transitions. Word has length 105 [2023-11-29 05:25:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:25,059 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 470 transitions. [2023-11-29 05:25:25,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 05:25:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 470 transitions. [2023-11-29 05:25:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 05:25:25,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:25,060 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 05:25:25,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:25,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:25,261 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:25,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:25,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1621581694, now seen corresponding path program 2 times [2023-11-29 05:25:25,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:25,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118349114] [2023-11-29 05:25:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:25,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:25,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:25,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12672935] [2023-11-29 05:25:25,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:25,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:25,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:25,269 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:25,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 05:25:25,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:25:25,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:25,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:25:25,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 05:25:25,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 05:25:25,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:25,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118349114] [2023-11-29 05:25:25,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:25,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12672935] [2023-11-29 05:25:25,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12672935] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:25,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 05:25:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418266899] [2023-11-29 05:25:25,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:25,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 05:25:25,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 05:25:25,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:25:25,660 INFO L87 Difference]: Start difference. First operand 368 states and 470 transitions. Second operand has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 05:25:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:26,032 INFO L93 Difference]: Finished difference Result 554 states and 681 transitions. [2023-11-29 05:25:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 05:25:26,032 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 108 [2023-11-29 05:25:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:26,035 INFO L225 Difference]: With dead ends: 554 [2023-11-29 05:25:26,035 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 05:25:26,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 05:25:26,037 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 154 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:26,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 661 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:26,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 05:25:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 405. [2023-11-29 05:25:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.2279635258358663) internal successors, (404), 343 states have internal predecessors, (404), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 05:25:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 504 transitions. [2023-11-29 05:25:26,078 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 504 transitions. Word has length 108 [2023-11-29 05:25:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:26,078 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 504 transitions. [2023-11-29 05:25:26,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 05:25:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 504 transitions. [2023-11-29 05:25:26,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 05:25:26,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:26,080 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 05:25:26,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 05:25:26,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:26,281 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:26,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:26,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2049797835, now seen corresponding path program 2 times [2023-11-29 05:25:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:26,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479747740] [2023-11-29 05:25:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:26,288 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:26,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402655020] [2023-11-29 05:25:26,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:26,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:26,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:26,290 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:26,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 05:25:26,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:25:26,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:26,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:25:26,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 05:25:26,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:27,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:27,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479747740] [2023-11-29 05:25:27,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:27,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402655020] [2023-11-29 05:25:27,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402655020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:27,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:27,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 05:25:27,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931380150] [2023-11-29 05:25:27,182 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:27,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:27,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:27,183 INFO L87 Difference]: Start difference. First operand 405 states and 504 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:27,358 INFO L93 Difference]: Finished difference Result 490 states and 607 transitions. [2023-11-29 05:25:27,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:25:27,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2023-11-29 05:25:27,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:27,361 INFO L225 Difference]: With dead ends: 490 [2023-11-29 05:25:27,361 INFO L226 Difference]: Without dead ends: 489 [2023-11-29 05:25:27,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:25:27,362 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 131 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:27,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 100 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-29 05:25:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 405. [2023-11-29 05:25:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.221884498480243) internal successors, (402), 343 states have internal predecessors, (402), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 05:25:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 502 transitions. [2023-11-29 05:25:27,398 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 502 transitions. Word has length 110 [2023-11-29 05:25:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:27,399 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 502 transitions. [2023-11-29 05:25:27,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:27,399 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 502 transitions. [2023-11-29 05:25:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 05:25:27,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:27,400 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 05:25:27,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 05:25:27,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:27,600 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:27,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash 880776641, now seen corresponding path program 2 times [2023-11-29 05:25:27,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:27,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923184445] [2023-11-29 05:25:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:27,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:27,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:27,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305891354] [2023-11-29 05:25:27,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:27,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:27,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:27,609 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:27,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 05:25:27,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:25:27,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:27,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:25:27,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 05:25:27,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:28,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923184445] [2023-11-29 05:25:28,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305891354] [2023-11-29 05:25:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305891354] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:28,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 05:25:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291089989] [2023-11-29 05:25:28,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:28,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:28,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:28,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:25:28,111 INFO L87 Difference]: Start difference. First operand 405 states and 502 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:28,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:28,274 INFO L93 Difference]: Finished difference Result 409 states and 502 transitions. [2023-11-29 05:25:28,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:28,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-11-29 05:25:28,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:28,277 INFO L225 Difference]: With dead ends: 409 [2023-11-29 05:25:28,277 INFO L226 Difference]: Without dead ends: 408 [2023-11-29 05:25:28,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:25:28,278 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 64 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:28,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 98 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:25:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-11-29 05:25:28,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2023-11-29 05:25:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 329 states have (on average 1.209726443768997) internal successors, (398), 342 states have internal predecessors, (398), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 05:25:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 498 transitions. [2023-11-29 05:25:28,322 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 498 transitions. Word has length 111 [2023-11-29 05:25:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:28,323 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 498 transitions. [2023-11-29 05:25:28,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:25:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 498 transitions. [2023-11-29 05:25:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 05:25:28,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:28,324 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 05:25:28,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 05:25:28,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 05:25:28,525 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:28,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash 317797507, now seen corresponding path program 2 times [2023-11-29 05:25:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:28,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389107184] [2023-11-29 05:25:28,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:28,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:28,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:28,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730206420] [2023-11-29 05:25:28,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:28,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:28,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:28,533 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:28,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 05:25:28,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:25:28,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:28,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 05:25:28,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 05:25:29,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:34,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389107184] [2023-11-29 05:25:34,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:34,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730206420] [2023-11-29 05:25:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730206420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:34,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:25:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:25:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195083576] [2023-11-29 05:25:34,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:34,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:25:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:25:34,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 05:25:34,128 INFO L87 Difference]: Start difference. First operand 404 states and 498 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 05:25:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:34,689 INFO L93 Difference]: Finished difference Result 509 states and 619 transitions. [2023-11-29 05:25:34,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:25:34,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2023-11-29 05:25:34,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:34,692 INFO L225 Difference]: With dead ends: 509 [2023-11-29 05:25:34,693 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 05:25:34,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=72, Invalid=269, Unknown=1, NotChecked=0, Total=342 [2023-11-29 05:25:34,693 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 88 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:34,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 475 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:25:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 05:25:34,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 458. [2023-11-29 05:25:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.2015915119363396) internal successors, (453), 390 states have internal predecessors, (453), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 05:25:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 565 transitions. [2023-11-29 05:25:34,731 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 565 transitions. Word has length 113 [2023-11-29 05:25:34,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:34,731 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 565 transitions. [2023-11-29 05:25:34,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 05:25:34,732 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 565 transitions. [2023-11-29 05:25:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 05:25:34,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:34,733 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 05:25:34,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 05:25:34,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:34,936 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:34,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash 203159010, now seen corresponding path program 2 times [2023-11-29 05:25:34,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:34,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825331536] [2023-11-29 05:25:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:34,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:34,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:34,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [280052987] [2023-11-29 05:25:34,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:34,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:34,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:34,946 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:34,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 05:25:35,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:25:35,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:35,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:25:35,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:35,101 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:35,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825331536] [2023-11-29 05:25:35,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:35,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280052987] [2023-11-29 05:25:35,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280052987] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:35,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-29 05:25:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385009404] [2023-11-29 05:25:35,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:35,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:35,214 INFO L87 Difference]: Start difference. First operand 458 states and 565 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 05:25:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:35,307 INFO L93 Difference]: Finished difference Result 476 states and 577 transitions. [2023-11-29 05:25:35,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:35,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-29 05:25:35,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:35,310 INFO L225 Difference]: With dead ends: 476 [2023-11-29 05:25:35,310 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 05:25:35,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:35,311 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 62 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:35,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 176 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:35,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 05:25:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 458. [2023-11-29 05:25:35,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.193633952254642) internal successors, (450), 390 states have internal predecessors, (450), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 05:25:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 562 transitions. [2023-11-29 05:25:35,360 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 562 transitions. Word has length 127 [2023-11-29 05:25:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:35,361 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 562 transitions. [2023-11-29 05:25:35,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 05:25:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 562 transitions. [2023-11-29 05:25:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 05:25:35,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:35,362 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2023-11-29 05:25:35,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 05:25:35,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:35,568 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:35,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash 465088482, now seen corresponding path program 2 times [2023-11-29 05:25:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:35,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077837120] [2023-11-29 05:25:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:35,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:35,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267856417] [2023-11-29 05:25:35,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:35,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:35,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:35,580 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:35,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 05:25:35,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:25:35,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:35,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:25:35,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:25:35,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:25:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:35,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077837120] [2023-11-29 05:25:35,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267856417] [2023-11-29 05:25:35,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267856417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:35,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:35,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:25:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590120934] [2023-11-29 05:25:35,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:35,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:25:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:35,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:25:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:25:35,890 INFO L87 Difference]: Start difference. First operand 458 states and 562 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 05:25:36,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:36,506 INFO L93 Difference]: Finished difference Result 1197 states and 1481 transitions. [2023-11-29 05:25:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:25:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 129 [2023-11-29 05:25:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:36,511 INFO L225 Difference]: With dead ends: 1197 [2023-11-29 05:25:36,511 INFO L226 Difference]: Without dead ends: 1195 [2023-11-29 05:25:36,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:25:36,512 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 558 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:36,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 421 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:25:36,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-11-29 05:25:36,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 496. [2023-11-29 05:25:36,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 410 states have (on average 1.1829268292682926) internal successors, (485), 423 states have internal predecessors, (485), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 05:25:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 607 transitions. [2023-11-29 05:25:36,557 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 607 transitions. Word has length 129 [2023-11-29 05:25:36,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:36,557 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 607 transitions. [2023-11-29 05:25:36,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 05:25:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 607 transitions. [2023-11-29 05:25:36,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 05:25:36,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:36,558 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 05:25:36,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 05:25:36,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:36,759 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:36,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1532794445, now seen corresponding path program 2 times [2023-11-29 05:25:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724113699] [2023-11-29 05:25:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:36,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:36,765 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:36,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616649312] [2023-11-29 05:25:36,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:25:36,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:36,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:36,767 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:36,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 05:25:36,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 05:25:36,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:36,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:25:36,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2023-11-29 05:25:36,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:25:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724113699] [2023-11-29 05:25:36,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616649312] [2023-11-29 05:25:36,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616649312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:36,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:36,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80363616] [2023-11-29 05:25:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:36,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:36,839 INFO L87 Difference]: Start difference. First operand 496 states and 607 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:25:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:36,930 INFO L93 Difference]: Finished difference Result 509 states and 620 transitions. [2023-11-29 05:25:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:25:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 130 [2023-11-29 05:25:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:36,933 INFO L225 Difference]: With dead ends: 509 [2023-11-29 05:25:36,933 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 05:25:36,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 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 05:25:36,934 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 15 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:36,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 201 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:25:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 05:25:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 506. [2023-11-29 05:25:36,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 419 states have (on average 1.1789976133651552) internal successors, (494), 432 states have internal predecessors, (494), 61 states have call successors, (61), 12 states have call predecessors, (61), 12 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 05:25:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2023-11-29 05:25:36,971 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 130 [2023-11-29 05:25:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:36,971 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2023-11-29 05:25:36,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 05:25:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2023-11-29 05:25:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 05:25:36,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:36,973 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 05:25:36,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 05:25:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 05:25:37,173 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:37,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:37,173 INFO L85 PathProgramCache]: Analyzing trace with hash -168836972, now seen corresponding path program 1 times [2023-11-29 05:25:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:37,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208007341] [2023-11-29 05:25:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:37,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:37,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:37,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551745872] [2023-11-29 05:25:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:37,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:37,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:37,181 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 05:25:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:37,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:25:37,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:37,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:37,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208007341] [2023-11-29 05:25:37,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:37,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551745872] [2023-11-29 05:25:37,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551745872] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:37,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:37,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 05:25:37,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895907864] [2023-11-29 05:25:37,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:37,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:25:37,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:37,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:25:37,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:25:37,871 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:38,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:38,146 INFO L93 Difference]: Finished difference Result 639 states and 778 transitions. [2023-11-29 05:25:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:25:38,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 129 [2023-11-29 05:25:38,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:38,149 INFO L225 Difference]: With dead ends: 639 [2023-11-29 05:25:38,150 INFO L226 Difference]: Without dead ends: 637 [2023-11-29 05:25:38,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:25:38,151 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:38,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 296 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-11-29 05:25:38,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 534. [2023-11-29 05:25:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 443 states have (on average 1.1941309255079007) internal successors, (529), 456 states have internal predecessors, (529), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-29 05:25:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 659 transitions. [2023-11-29 05:25:38,209 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 659 transitions. Word has length 129 [2023-11-29 05:25:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:38,209 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 659 transitions. [2023-11-29 05:25:38,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 659 transitions. [2023-11-29 05:25:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 05:25:38,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:38,210 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 05:25:38,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:38,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 05:25:38,411 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:38,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash -938721521, now seen corresponding path program 1 times [2023-11-29 05:25:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:38,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436640388] [2023-11-29 05:25:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:38,418 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:38,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122607373] [2023-11-29 05:25:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:38,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:38,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:38,420 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:38,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 05:25:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:38,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 05:25:38,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:38,634 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 326 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 05:25:38,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:38,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:38,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436640388] [2023-11-29 05:25:38,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:38,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122607373] [2023-11-29 05:25:38,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122607373] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:38,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:38,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-29 05:25:38,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680769417] [2023-11-29 05:25:38,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:38,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 05:25:38,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:38,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 05:25:38,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:25:38,844 INFO L87 Difference]: Start difference. First operand 534 states and 659 transitions. Second operand has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 05:25:39,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:39,383 INFO L93 Difference]: Finished difference Result 963 states and 1182 transitions. [2023-11-29 05:25:39,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 05:25:39,384 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 130 [2023-11-29 05:25:39,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:39,388 INFO L225 Difference]: With dead ends: 963 [2023-11-29 05:25:39,388 INFO L226 Difference]: Without dead ends: 955 [2023-11-29 05:25:39,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 05:25:39,390 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 276 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:39,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 715 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:39,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-29 05:25:39,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 905. [2023-11-29 05:25:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 775 states have (on average 1.1961290322580644) internal successors, (927), 788 states have internal predecessors, (927), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 05:25:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1125 transitions. [2023-11-29 05:25:39,462 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1125 transitions. Word has length 130 [2023-11-29 05:25:39,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:39,463 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1125 transitions. [2023-11-29 05:25:39,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 05:25:39,463 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1125 transitions. [2023-11-29 05:25:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 05:25:39,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:39,464 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 05:25:39,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 05:25:39,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 05:25:39,664 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:39,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:39,665 INFO L85 PathProgramCache]: Analyzing trace with hash -687537624, now seen corresponding path program 1 times [2023-11-29 05:25:39,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:39,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884470921] [2023-11-29 05:25:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:39,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:39,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:39,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950061020] [2023-11-29 05:25:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:39,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:39,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:39,673 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:39,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 05:25:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:39,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 05:25:39,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:39,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:43,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:43,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884470921] [2023-11-29 05:25:43,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:43,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950061020] [2023-11-29 05:25:43,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950061020] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:43,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:43,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2023-11-29 05:25:43,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337174968] [2023-11-29 05:25:43,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:43,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:25:43,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:43,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:25:43,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:25:43,293 INFO L87 Difference]: Start difference. First operand 905 states and 1125 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:43,568 INFO L93 Difference]: Finished difference Result 1161 states and 1455 transitions. [2023-11-29 05:25:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:25:43,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 134 [2023-11-29 05:25:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:43,575 INFO L225 Difference]: With dead ends: 1161 [2023-11-29 05:25:43,575 INFO L226 Difference]: Without dead ends: 1160 [2023-11-29 05:25:43,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:25:43,576 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 143 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:43,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 298 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:25:43,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2023-11-29 05:25:43,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 904. [2023-11-29 05:25:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 775 states have (on average 1.1883870967741936) internal successors, (921), 787 states have internal predecessors, (921), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 05:25:43,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1119 transitions. [2023-11-29 05:25:43,653 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1119 transitions. Word has length 134 [2023-11-29 05:25:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:43,653 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1119 transitions. [2023-11-29 05:25:43,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1119 transitions. [2023-11-29 05:25:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 05:25:43,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:43,654 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1] [2023-11-29 05:25:43,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:43,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:43,855 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:43,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 161170256, now seen corresponding path program 1 times [2023-11-29 05:25:43,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:43,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204265138] [2023-11-29 05:25:43,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:43,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:43,863 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:43,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470701221] [2023-11-29 05:25:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:43,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:43,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:43,864 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 05:25:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:43,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:25:43,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:44,228 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:46,121 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 05:25:46,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:46,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204265138] [2023-11-29 05:25:46,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:25:46,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470701221] [2023-11-29 05:25:46,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470701221] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:25:46,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:46,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 05:25:46,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937085619] [2023-11-29 05:25:46,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:25:46,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:25:46,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:46,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:25:46,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:25:46,124 INFO L87 Difference]: Start difference. First operand 904 states and 1119 transitions. Second operand has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:47,892 INFO L93 Difference]: Finished difference Result 1574 states and 1938 transitions. [2023-11-29 05:25:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 05:25:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 135 [2023-11-29 05:25:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:47,898 INFO L225 Difference]: With dead ends: 1574 [2023-11-29 05:25:47,898 INFO L226 Difference]: Without dead ends: 1315 [2023-11-29 05:25:47,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=252, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:25:47,899 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 533 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:47,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 669 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:25:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-11-29 05:25:47,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1107. [2023-11-29 05:25:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 964 states have (on average 1.2188796680497926) internal successors, (1175), 976 states have internal predecessors, (1175), 113 states have call successors, (113), 17 states have call predecessors, (113), 17 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 05:25:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1401 transitions. [2023-11-29 05:25:47,994 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1401 transitions. Word has length 135 [2023-11-29 05:25:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:47,995 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1401 transitions. [2023-11-29 05:25:47,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 05:25:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1401 transitions. [2023-11-29 05:25:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 05:25:47,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:47,996 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 05:25:48,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 05:25:48,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:48,196 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:25:48,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:48,197 INFO L85 PathProgramCache]: Analyzing trace with hash 947235778, now seen corresponding path program 3 times [2023-11-29 05:25:48,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:48,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826274237] [2023-11-29 05:25:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:48,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:48,205 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:25:48,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721644362] [2023-11-29 05:25:48,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:25:48,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:48,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:48,206 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:48,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 05:25:48,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 05:25:48,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:25:48,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:25:48,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:25:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 73 proven. 8 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 05:25:48,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:35,413 WARN L293 SmtUtils]: Spent 26.87s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:27:34,417 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:28:11,872 WARN L293 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:28:30,196 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:29:04,475 WARN L293 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:29:24,886 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:29:42,559 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:30:02,464 WARN L293 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:30:37,391 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:31:07,434 WARN L293 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:32:13,128 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:32:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 42 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 05:32:33,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:33,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826274237] [2023-11-29 05:32:33,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:33,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721644362] [2023-11-29 05:32:33,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721644362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:32:33,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:32:33,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 05:32:33,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983463570] [2023-11-29 05:32:33,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:33,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 05:32:33,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:33,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 05:32:33,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-29 05:32:33,460 INFO L87 Difference]: Start difference. First operand 1107 states and 1401 transitions. Second operand has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 05:32:41,314 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification. DAG size of input: 50 DAG size of output: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:32:42,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:42,714 INFO L93 Difference]: Finished difference Result 1391 states and 1729 transitions. [2023-11-29 05:32:42,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 05:32:42,714 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2023-11-29 05:32:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:42,723 INFO L225 Difference]: With dead ends: 1391 [2023-11-29 05:32:42,723 INFO L226 Difference]: Without dead ends: 1390 [2023-11-29 05:32:42,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:32:42,725 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 347 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:42,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 312 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 05:32:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2023-11-29 05:32:42,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1243. [2023-11-29 05:32:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1092 states have (on average 1.206959706959707) internal successors, (1318), 1104 states have internal predecessors, (1318), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 05:32:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1560 transitions. [2023-11-29 05:32:42,852 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1560 transitions. Word has length 139 [2023-11-29 05:32:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:42,852 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1560 transitions. [2023-11-29 05:32:42,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 05:32:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1560 transitions. [2023-11-29 05:32:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 05:32:42,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:42,854 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 05:32:42,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 05:32:43,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 05:32:43,055 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:32:43,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1599978083, now seen corresponding path program 3 times [2023-11-29 05:32:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:43,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728011937] [2023-11-29 05:32:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:43,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:43,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124016000] [2023-11-29 05:32:43,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:32:43,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:43,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:43,065 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:43,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 05:32:43,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-29 05:32:43,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:32:43,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:32:43,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 05:32:43,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:32:43,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728011937] [2023-11-29 05:32:43,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124016000] [2023-11-29 05:32:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124016000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:32:43,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:32:43,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:32:43,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470226682] [2023-11-29 05:32:43,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:32:43,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:32:43,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:43,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:32:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:32:43,220 INFO L87 Difference]: Start difference. First operand 1243 states and 1560 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:32:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:43,484 INFO L93 Difference]: Finished difference Result 1250 states and 1566 transitions. [2023-11-29 05:32:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:32:43,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2023-11-29 05:32:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:43,489 INFO L225 Difference]: With dead ends: 1250 [2023-11-29 05:32:43,489 INFO L226 Difference]: Without dead ends: 1249 [2023-11-29 05:32:43,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:32:43,490 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:43,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 94 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:32:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-11-29 05:32:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1242. [2023-11-29 05:32:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1092 states have (on average 1.1913919413919414) internal successors, (1301), 1103 states have internal predecessors, (1301), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 05:32:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1543 transitions. [2023-11-29 05:32:43,637 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1543 transitions. Word has length 140 [2023-11-29 05:32:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1543 transitions. [2023-11-29 05:32:43,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:32:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1543 transitions. [2023-11-29 05:32:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 05:32:43,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:43,639 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 05:32:43,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 05:32:43,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 05:32:43,840 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:32:43,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:43,840 INFO L85 PathProgramCache]: Analyzing trace with hash 734250880, now seen corresponding path program 1 times [2023-11-29 05:32:43,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:43,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885913193] [2023-11-29 05:32:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:43,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:43,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076380755] [2023-11-29 05:32:43,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:43,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:43,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:43,850 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:43,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 05:32:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:32:43,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 05:32:43,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:32:44,420 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:44,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885913193] [2023-11-29 05:32:44,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:44,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076380755] [2023-11-29 05:32:44,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076380755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:32:44,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:32:44,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 05:32:44,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444370529] [2023-11-29 05:32:44,510 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:32:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:44,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:32:44,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:32:44,511 INFO L87 Difference]: Start difference. First operand 1242 states and 1543 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 05:32:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:44,949 INFO L93 Difference]: Finished difference Result 1282 states and 1570 transitions. [2023-11-29 05:32:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:32:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 153 [2023-11-29 05:32:44,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:44,953 INFO L225 Difference]: With dead ends: 1282 [2023-11-29 05:32:44,954 INFO L226 Difference]: Without dead ends: 1007 [2023-11-29 05:32:44,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:32:44,955 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 70 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:44,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 390 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:32:44,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-11-29 05:32:45,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 999. [2023-11-29 05:32:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 869 states have (on average 1.1829689298043728) internal successors, (1028), 880 states have internal predecessors, (1028), 101 states have call successors, (101), 17 states have call predecessors, (101), 17 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-29 05:32:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1230 transitions. [2023-11-29 05:32:45,050 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1230 transitions. Word has length 153 [2023-11-29 05:32:45,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:45,051 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1230 transitions. [2023-11-29 05:32:45,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 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 05:32:45,051 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1230 transitions. [2023-11-29 05:32:45,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 05:32:45,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:45,052 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 05:32:45,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 05:32:45,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 05:32:45,253 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:32:45,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1286940930, now seen corresponding path program 1 times [2023-11-29 05:32:45,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:45,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442765922] [2023-11-29 05:32:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:45,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:45,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:45,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404871583] [2023-11-29 05:32:45,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:45,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:45,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:45,262 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:45,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 05:32:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:32:45,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 05:32:45,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:32:45,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:51,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442765922] [2023-11-29 05:32:51,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:51,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404871583] [2023-11-29 05:32:51,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404871583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:32:51,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:32:51,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 05:32:51,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434423235] [2023-11-29 05:32:51,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 05:32:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 05:32:51,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:32:51,811 INFO L87 Difference]: Start difference. First operand 999 states and 1230 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 05:32:52,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:52,250 INFO L93 Difference]: Finished difference Result 1098 states and 1344 transitions. [2023-11-29 05:32:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:32:52,251 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 154 [2023-11-29 05:32:52,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:52,254 INFO L225 Difference]: With dead ends: 1098 [2023-11-29 05:32:52,254 INFO L226 Difference]: Without dead ends: 809 [2023-11-29 05:32:52,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:32:52,256 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:52,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 378 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:32:52,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-29 05:32:52,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 806. [2023-11-29 05:32:52,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 692 states have (on average 1.170520231213873) internal successors, (810), 703 states have internal predecessors, (810), 85 states have call successors, (85), 17 states have call predecessors, (85), 17 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 05:32:52,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 980 transitions. [2023-11-29 05:32:52,340 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 980 transitions. Word has length 154 [2023-11-29 05:32:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:52,340 INFO L495 AbstractCegarLoop]: Abstraction has 806 states and 980 transitions. [2023-11-29 05:32:52,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 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 05:32:52,340 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 980 transitions. [2023-11-29 05:32:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 05:32:52,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:52,341 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 05:32:52,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 05:32:52,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 05:32:52,542 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:32:52,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:52,542 INFO L85 PathProgramCache]: Analyzing trace with hash -200343292, now seen corresponding path program 1 times [2023-11-29 05:32:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093788977] [2023-11-29 05:32:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:52,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:52,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:52,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618886610] [2023-11-29 05:32:52,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:52,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:52,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:52,553 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:52,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 05:32:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:32:52,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:32:52,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:52,893 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:32:52,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:52,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093788977] [2023-11-29 05:32:52,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618886610] [2023-11-29 05:32:52,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618886610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:32:52,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:32:52,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 05:32:52,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801810643] [2023-11-29 05:32:52,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:52,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 05:32:52,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:52,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 05:32:52,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:32:52,993 INFO L87 Difference]: Start difference. First operand 806 states and 980 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:32:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:53,494 INFO L93 Difference]: Finished difference Result 866 states and 1048 transitions. [2023-11-29 05:32:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:32:53,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 156 [2023-11-29 05:32:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:53,498 INFO L225 Difference]: With dead ends: 866 [2023-11-29 05:32:53,498 INFO L226 Difference]: Without dead ends: 843 [2023-11-29 05:32:53,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:32:53,499 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 78 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:53,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 607 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 05:32:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-29 05:32:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 833. [2023-11-29 05:32:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 717 states have (on average 1.1757322175732217) internal successors, (843), 728 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:32:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1017 transitions. [2023-11-29 05:32:53,599 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1017 transitions. Word has length 156 [2023-11-29 05:32:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:53,599 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1017 transitions. [2023-11-29 05:32:53,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 05:32:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1017 transitions. [2023-11-29 05:32:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 05:32:53,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:53,601 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 05:32:53,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 05:32:53,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 05:32:53,801 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:32:53,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:32:53,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2003738234, now seen corresponding path program 3 times [2023-11-29 05:32:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:32:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174208387] [2023-11-29 05:32:53,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:32:53,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:32:53,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:32:53,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659899461] [2023-11-29 05:32:53,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:32:53,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:32:53,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:32:53,811 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:32:53,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 05:32:53,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:32:53,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:32:53,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:32:53,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:32:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 82 proven. 33 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 05:32:54,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:32:59,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:32:59,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174208387] [2023-11-29 05:32:59,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:32:59,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659899461] [2023-11-29 05:32:59,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659899461] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:32:59,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:32:59,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 05:32:59,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079633863] [2023-11-29 05:32:59,200 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:32:59,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:32:59,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:32:59,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:32:59,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:32:59,201 INFO L87 Difference]: Start difference. First operand 833 states and 1017 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:32:59,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:32:59,802 INFO L93 Difference]: Finished difference Result 903 states and 1090 transitions. [2023-11-29 05:32:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:32:59,802 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 157 [2023-11-29 05:32:59,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:32:59,807 INFO L225 Difference]: With dead ends: 903 [2023-11-29 05:32:59,807 INFO L226 Difference]: Without dead ends: 901 [2023-11-29 05:32:59,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:32:59,808 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 193 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:32:59,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 150 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:32:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-11-29 05:32:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 834. [2023-11-29 05:32:59,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 718 states have (on average 1.1740947075208914) internal successors, (843), 729 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:32:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1017 transitions. [2023-11-29 05:32:59,900 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1017 transitions. Word has length 157 [2023-11-29 05:32:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:32:59,901 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1017 transitions. [2023-11-29 05:32:59,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:32:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1017 transitions. [2023-11-29 05:32:59,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 05:32:59,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:32:59,902 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-11-29 05:32:59,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 05:33:00,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 05:33:00,102 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:00,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash 300960805, now seen corresponding path program 2 times [2023-11-29 05:33:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:00,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478806152] [2023-11-29 05:33:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:00,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:00,111 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:00,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329343505] [2023-11-29 05:33:00,111 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:33:00,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:00,112 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:00,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 05:33:00,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:33:00,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:00,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:33:00,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:00,426 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 05:33:00,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 05:33:00,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478806152] [2023-11-29 05:33:00,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329343505] [2023-11-29 05:33:00,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329343505] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:00,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2023-11-29 05:33:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041217223] [2023-11-29 05:33:00,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:00,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 05:33:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 05:33:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2023-11-29 05:33:00,701 INFO L87 Difference]: Start difference. First operand 834 states and 1017 transitions. Second operand has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 05:33:01,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:01,433 INFO L93 Difference]: Finished difference Result 1295 states and 1556 transitions. [2023-11-29 05:33:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-29 05:33:01,434 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 162 [2023-11-29 05:33:01,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:01,438 INFO L225 Difference]: With dead ends: 1295 [2023-11-29 05:33:01,438 INFO L226 Difference]: Without dead ends: 1047 [2023-11-29 05:33:01,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=939, Invalid=3093, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 05:33:01,440 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 264 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:01,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 741 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:33:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-29 05:33:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 987. [2023-11-29 05:33:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 855 states have (on average 1.1485380116959065) internal successors, (982), 866 states have internal predecessors, (982), 99 states have call successors, (99), 21 states have call predecessors, (99), 21 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 05:33:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1180 transitions. [2023-11-29 05:33:01,602 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1180 transitions. Word has length 162 [2023-11-29 05:33:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:01,602 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1180 transitions. [2023-11-29 05:33:01,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 05:33:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1180 transitions. [2023-11-29 05:33:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 05:33:01,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:01,604 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:33:01,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:01,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 05:33:01,804 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:01,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1505941158, now seen corresponding path program 1 times [2023-11-29 05:33:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040567944] [2023-11-29 05:33:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:01,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:01,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243012135] [2023-11-29 05:33:01,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:01,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:01,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:01,814 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:01,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 05:33:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:01,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:33:01,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:33:02,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:33:07,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040567944] [2023-11-29 05:33:07,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:07,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243012135] [2023-11-29 05:33:07,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243012135] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:07,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:07,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2023-11-29 05:33:07,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020717813] [2023-11-29 05:33:07,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:07,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 05:33:07,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:07,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 05:33:07,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=332, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:33:07,747 INFO L87 Difference]: Start difference. First operand 987 states and 1180 transitions. Second operand has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 05:33:11,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:11,479 INFO L93 Difference]: Finished difference Result 1418 states and 1719 transitions. [2023-11-29 05:33:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 05:33:11,480 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 163 [2023-11-29 05:33:11,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:11,485 INFO L225 Difference]: With dead ends: 1418 [2023-11-29 05:33:11,485 INFO L226 Difference]: Without dead ends: 1416 [2023-11-29 05:33:11,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=510, Invalid=822, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:33:11,486 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 557 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:11,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 787 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 05:33:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2023-11-29 05:33:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1186. [2023-11-29 05:33:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1042 states have (on average 1.1660268714011517) internal successors, (1215), 1053 states have internal predecessors, (1215), 111 states have call successors, (111), 21 states have call predecessors, (111), 21 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 05:33:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1437 transitions. [2023-11-29 05:33:11,645 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1437 transitions. Word has length 163 [2023-11-29 05:33:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:11,645 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1437 transitions. [2023-11-29 05:33:11,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 05:33:11,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1437 transitions. [2023-11-29 05:33:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 05:33:11,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:11,646 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 05:33:11,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 05:33:11,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:11,847 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:11,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash 161660851, now seen corresponding path program 4 times [2023-11-29 05:33:11,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:11,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217998715] [2023-11-29 05:33:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:11,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:11,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:11,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804879307] [2023-11-29 05:33:11,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 05:33:11,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:11,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:11,856 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:11,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 05:33:11,944 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 05:33:11,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:11,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:33:11,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:33:12,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:12,269 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 05:33:12,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:12,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217998715] [2023-11-29 05:33:12,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:12,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804879307] [2023-11-29 05:33:12,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804879307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:12,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:12,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 05:33:12,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535975789] [2023-11-29 05:33:12,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:12,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:33:12,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:33:12,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:33:12,272 INFO L87 Difference]: Start difference. First operand 1186 states and 1437 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 05:33:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:12,529 INFO L93 Difference]: Finished difference Result 1210 states and 1454 transitions. [2023-11-29 05:33:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:33:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 173 [2023-11-29 05:33:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:12,535 INFO L225 Difference]: With dead ends: 1210 [2023-11-29 05:33:12,535 INFO L226 Difference]: Without dead ends: 957 [2023-11-29 05:33:12,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:33:12,537 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 13 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:12,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 323 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:33:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-11-29 05:33:12,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 952. [2023-11-29 05:33:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 830 states have (on average 1.1722891566265061) internal successors, (973), 841 states have internal predecessors, (973), 93 states have call successors, (93), 17 states have call predecessors, (93), 17 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-11-29 05:33:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1159 transitions. [2023-11-29 05:33:12,732 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1159 transitions. Word has length 173 [2023-11-29 05:33:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:12,733 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1159 transitions. [2023-11-29 05:33:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 05:33:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1159 transitions. [2023-11-29 05:33:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 05:33:12,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:12,734 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:12,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 05:33:12,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:12,934 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:12,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:12,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1934634012, now seen corresponding path program 1 times [2023-11-29 05:33:12,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:12,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60120074] [2023-11-29 05:33:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:12,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:12,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119616825] [2023-11-29 05:33:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:12,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:12,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:12,945 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:12,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 05:33:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:13,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 05:33:13,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 72 proven. 46 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 05:33:13,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:13,801 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-11-29 05:33:13,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:13,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60120074] [2023-11-29 05:33:13,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:13,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119616825] [2023-11-29 05:33:13,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119616825] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:13,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:13,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2023-11-29 05:33:13,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384030270] [2023-11-29 05:33:13,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:13,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:33:13,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:33:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:33:13,804 INFO L87 Difference]: Start difference. First operand 952 states and 1159 transitions. Second operand has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 05:33:14,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:14,654 INFO L93 Difference]: Finished difference Result 1477 states and 1838 transitions. [2023-11-29 05:33:14,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:33:14,654 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 179 [2023-11-29 05:33:14,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:14,659 INFO L225 Difference]: With dead ends: 1477 [2023-11-29 05:33:14,659 INFO L226 Difference]: Without dead ends: 1005 [2023-11-29 05:33:14,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 349 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2023-11-29 05:33:14,661 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 392 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:14,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 442 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:33:14,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-29 05:33:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 779. [2023-11-29 05:33:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 674 states have (on average 1.1617210682492582) internal successors, (783), 684 states have internal predecessors, (783), 77 states have call successors, (77), 17 states have call predecessors, (77), 17 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-29 05:33:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 937 transitions. [2023-11-29 05:33:14,774 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 937 transitions. Word has length 179 [2023-11-29 05:33:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:14,774 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 937 transitions. [2023-11-29 05:33:14,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 05:33:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 937 transitions. [2023-11-29 05:33:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-29 05:33:14,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:14,775 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:14,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 05:33:14,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:14,976 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:14,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash 155886755, now seen corresponding path program 2 times [2023-11-29 05:33:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:14,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458504453] [2023-11-29 05:33:14,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:14,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:14,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111199317] [2023-11-29 05:33:14,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:33:14,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:14,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:14,985 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:14,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 05:33:15,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:33:15,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:15,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 05:33:15,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 05:33:15,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 05:33:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458504453] [2023-11-29 05:33:15,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:15,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111199317] [2023-11-29 05:33:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111199317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:15,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:15,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 13 [2023-11-29 05:33:15,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119380365] [2023-11-29 05:33:15,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:15,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 05:33:15,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:15,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 05:33:15,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:33:15,484 INFO L87 Difference]: Start difference. First operand 779 states and 937 transitions. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 05:33:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:15,913 INFO L93 Difference]: Finished difference Result 885 states and 1057 transitions. [2023-11-29 05:33:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:33:15,913 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 180 [2023-11-29 05:33:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:15,915 INFO L225 Difference]: With dead ends: 885 [2023-11-29 05:33:15,915 INFO L226 Difference]: Without dead ends: 879 [2023-11-29 05:33:15,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 341 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:33:15,916 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 95 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:15,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 583 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:33:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-11-29 05:33:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 820. [2023-11-29 05:33:16,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 705 states have (on average 1.1574468085106382) internal successors, (816), 715 states have internal predecessors, (816), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 05:33:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 990 transitions. [2023-11-29 05:33:16,038 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 990 transitions. Word has length 180 [2023-11-29 05:33:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:16,038 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 990 transitions. [2023-11-29 05:33:16,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 05:33:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 990 transitions. [2023-11-29 05:33:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 05:33:16,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:16,039 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 05:33:16,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 05:33:16,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 05:33:16,240 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:16,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1511388205, now seen corresponding path program 1 times [2023-11-29 05:33:16,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:16,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484130728] [2023-11-29 05:33:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:16,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:16,249 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:16,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176941454] [2023-11-29 05:33:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:16,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:16,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:16,251 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:16,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 05:33:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:16,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 05:33:16,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 05:33:16,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 05:33:22,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:22,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484130728] [2023-11-29 05:33:22,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:22,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176941454] [2023-11-29 05:33:22,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176941454] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:22,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:22,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2023-11-29 05:33:22,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194798996] [2023-11-29 05:33:22,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:22,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:33:22,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:22,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:33:22,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:33:22,393 INFO L87 Difference]: Start difference. First operand 820 states and 990 transitions. Second operand has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 05:33:25,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:25,849 INFO L93 Difference]: Finished difference Result 1463 states and 1736 transitions. [2023-11-29 05:33:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 05:33:25,849 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 187 [2023-11-29 05:33:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:25,852 INFO L225 Difference]: With dead ends: 1463 [2023-11-29 05:33:25,852 INFO L226 Difference]: Without dead ends: 1462 [2023-11-29 05:33:25,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=545, Unknown=0, NotChecked=0, Total=870 [2023-11-29 05:33:25,853 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 864 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:25,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 862 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 05:33:25,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-11-29 05:33:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1248. [2023-11-29 05:33:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1095 states have (on average 1.1479452054794521) internal successors, (1257), 1105 states have internal predecessors, (1257), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 05:33:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1507 transitions. [2023-11-29 05:33:26,070 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1507 transitions. Word has length 187 [2023-11-29 05:33:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:26,070 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1507 transitions. [2023-11-29 05:33:26,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 05:33:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1507 transitions. [2023-11-29 05:33:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 05:33:26,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:26,072 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-11-29 05:33:26,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 05:33:26,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:26,273 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:26,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:26,273 INFO L85 PathProgramCache]: Analyzing trace with hash 28653170, now seen corresponding path program 5 times [2023-11-29 05:33:26,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:26,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682877881] [2023-11-29 05:33:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:26,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:26,283 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:26,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866102703] [2023-11-29 05:33:26,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 05:33:26,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:26,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:26,284 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:26,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 05:33:26,449 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-11-29 05:33:26,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:26,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 05:33:26,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 90 proven. 207 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2023-11-29 05:33:27,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682877881] [2023-11-29 05:33:27,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866102703] [2023-11-29 05:33:27,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866102703] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:27,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:27,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 05:33:27,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001594824] [2023-11-29 05:33:27,742 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:27,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:33:27,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:33:27,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-11-29 05:33:27,744 INFO L87 Difference]: Start difference. First operand 1248 states and 1507 transitions. Second operand has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2023-11-29 05:33:28,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:28,824 INFO L93 Difference]: Finished difference Result 1371 states and 1653 transitions. [2023-11-29 05:33:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 05:33:28,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 199 [2023-11-29 05:33:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:28,827 INFO L225 Difference]: With dead ends: 1371 [2023-11-29 05:33:28,827 INFO L226 Difference]: Without dead ends: 1370 [2023-11-29 05:33:28,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-11-29 05:33:28,828 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 75 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:28,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1306 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:33:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2023-11-29 05:33:29,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1248. [2023-11-29 05:33:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1095 states have (on average 1.1470319634703197) internal successors, (1256), 1105 states have internal predecessors, (1256), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 05:33:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1506 transitions. [2023-11-29 05:33:29,037 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1506 transitions. Word has length 199 [2023-11-29 05:33:29,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:29,037 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1506 transitions. [2023-11-29 05:33:29,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2023-11-29 05:33:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1506 transitions. [2023-11-29 05:33:29,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 05:33:29,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:29,038 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:29,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 05:33:29,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:29,239 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:29,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1611827461, now seen corresponding path program 3 times [2023-11-29 05:33:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:29,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122626008] [2023-11-29 05:33:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:29,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:29,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:29,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855400955] [2023-11-29 05:33:29,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 05:33:29,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:29,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:29,248 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:29,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 05:33:29,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 05:33:29,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:29,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 05:33:29,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2023-11-29 05:33:29,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2023-11-29 05:33:29,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122626008] [2023-11-29 05:33:29,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:29,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855400955] [2023-11-29 05:33:29,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855400955] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:29,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:29,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-29 05:33:29,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735334370] [2023-11-29 05:33:29,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:33:29,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:33:29,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:29,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:33:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:33:29,893 INFO L87 Difference]: Start difference. First operand 1248 states and 1506 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 05:33:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:30,626 INFO L93 Difference]: Finished difference Result 1260 states and 1514 transitions. [2023-11-29 05:33:30,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:33:30,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 206 [2023-11-29 05:33:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:30,629 INFO L225 Difference]: With dead ends: 1260 [2023-11-29 05:33:30,629 INFO L226 Difference]: Without dead ends: 1259 [2023-11-29 05:33:30,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:33:30,630 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 152 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:30,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 113 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:33:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-11-29 05:33:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1249. [2023-11-29 05:33:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1096 states have (on average 1.1468978102189782) internal successors, (1257), 1106 states have internal predecessors, (1257), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 05:33:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1507 transitions. [2023-11-29 05:33:30,896 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1507 transitions. Word has length 206 [2023-11-29 05:33:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1507 transitions. [2023-11-29 05:33:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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 05:33:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1507 transitions. [2023-11-29 05:33:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 05:33:30,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:30,898 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:30,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:31,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:31,098 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:31,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:31,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1516999609, now seen corresponding path program 2 times [2023-11-29 05:33:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269585120] [2023-11-29 05:33:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:31,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:31,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227498076] [2023-11-29 05:33:31,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:33:31,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:31,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:31,108 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:31,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 05:33:31,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:33:31,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:31,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:33:31,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 16 proven. 149 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 05:33:31,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269585120] [2023-11-29 05:33:31,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:31,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227498076] [2023-11-29 05:33:31,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227498076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:33:31,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:33:31,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 05:33:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577099061] [2023-11-29 05:33:31,730 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:31,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 05:33:31,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 05:33:31,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:33:31,731 INFO L87 Difference]: Start difference. First operand 1249 states and 1507 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:33:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:32,517 INFO L93 Difference]: Finished difference Result 1364 states and 1647 transitions. [2023-11-29 05:33:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:33:32,518 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 208 [2023-11-29 05:33:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:32,520 INFO L225 Difference]: With dead ends: 1364 [2023-11-29 05:33:32,520 INFO L226 Difference]: Without dead ends: 1353 [2023-11-29 05:33:32,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2023-11-29 05:33:32,520 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 107 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:32,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 870 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:33:32,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-11-29 05:33:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1319. [2023-11-29 05:33:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1158 states have (on average 1.1468048359240068) internal successors, (1328), 1168 states have internal predecessors, (1328), 133 states have call successors, (133), 17 states have call predecessors, (133), 17 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 05:33:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1594 transitions. [2023-11-29 05:33:32,752 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1594 transitions. Word has length 208 [2023-11-29 05:33:32,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:32,752 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1594 transitions. [2023-11-29 05:33:32,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 05:33:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1594 transitions. [2023-11-29 05:33:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 05:33:32,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:32,754 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:33:32,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 05:33:32,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:32,954 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:32,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:32,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1587921210, now seen corresponding path program 1 times [2023-11-29 05:33:32,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344920432] [2023-11-29 05:33:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:32,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:32,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:32,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683459904] [2023-11-29 05:33:32,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:32,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:32,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:32,969 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:32,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 05:33:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:33,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:33:33,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 05:33:33,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 05:33:33,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:33,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344920432] [2023-11-29 05:33:33,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683459904] [2023-11-29 05:33:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683459904] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:33,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 37 [2023-11-29 05:33:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819517124] [2023-11-29 05:33:33,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:33,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 05:33:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 05:33:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:33:33,710 INFO L87 Difference]: Start difference. First operand 1319 states and 1594 transitions. Second operand has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 05:33:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:35,161 INFO L93 Difference]: Finished difference Result 2794 states and 3453 transitions. [2023-11-29 05:33:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 05:33:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) Word has length 212 [2023-11-29 05:33:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:35,167 INFO L225 Difference]: With dead ends: 2794 [2023-11-29 05:33:35,167 INFO L226 Difference]: Without dead ends: 2784 [2023-11-29 05:33:35,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1310, Invalid=4542, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 05:33:35,169 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 410 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:35,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 805 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:33:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-11-29 05:33:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2703. [2023-11-29 05:33:35,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2409 states have (on average 1.1544209215442092) internal successors, (2781), 2420 states have internal predecessors, (2781), 255 states have call successors, (255), 28 states have call predecessors, (255), 28 states have return successors, (255), 254 states have call predecessors, (255), 255 states have call successors, (255) [2023-11-29 05:33:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3291 transitions. [2023-11-29 05:33:35,651 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3291 transitions. Word has length 212 [2023-11-29 05:33:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:35,651 INFO L495 AbstractCegarLoop]: Abstraction has 2703 states and 3291 transitions. [2023-11-29 05:33:35,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 05:33:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3291 transitions. [2023-11-29 05:33:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 05:33:35,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:35,653 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-11-29 05:33:35,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:35,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:35,853 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:35,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2114717608, now seen corresponding path program 1 times [2023-11-29 05:33:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094196585] [2023-11-29 05:33:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:35,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:35,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:35,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747061687] [2023-11-29 05:33:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:35,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:35,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:35,863 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:35,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 05:33:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:33:35,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 05:33:35,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:33:36,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 05:33:36,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:36,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094196585] [2023-11-29 05:33:36,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:36,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747061687] [2023-11-29 05:33:36,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747061687] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:36,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:36,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 38 [2023-11-29 05:33:36,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625577353] [2023-11-29 05:33:36,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:36,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 05:33:36,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:36,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 05:33:36,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:33:36,602 INFO L87 Difference]: Start difference. First operand 2703 states and 3291 transitions. Second operand has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) [2023-11-29 05:33:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:33:38,173 INFO L93 Difference]: Finished difference Result 3359 states and 4098 transitions. [2023-11-29 05:33:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 05:33:38,174 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) Word has length 214 [2023-11-29 05:33:38,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:33:38,178 INFO L225 Difference]: With dead ends: 3359 [2023-11-29 05:33:38,179 INFO L226 Difference]: Without dead ends: 3152 [2023-11-29 05:33:38,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1460, Invalid=5020, Unknown=0, NotChecked=0, Total=6480 [2023-11-29 05:33:38,180 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 441 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:33:38,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 865 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:33:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2023-11-29 05:33:38,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 2997. [2023-11-29 05:33:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2673 states have (on average 1.1481481481481481) internal successors, (3069), 2683 states have internal predecessors, (3069), 281 states have call successors, (281), 32 states have call predecessors, (281), 32 states have return successors, (281), 281 states have call predecessors, (281), 281 states have call successors, (281) [2023-11-29 05:33:38,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3631 transitions. [2023-11-29 05:33:38,757 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3631 transitions. Word has length 214 [2023-11-29 05:33:38,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:33:38,757 INFO L495 AbstractCegarLoop]: Abstraction has 2997 states and 3631 transitions. [2023-11-29 05:33:38,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) [2023-11-29 05:33:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3631 transitions. [2023-11-29 05:33:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 05:33:38,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:33:38,759 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1] [2023-11-29 05:33:38,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 05:33:38,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 05:33:38,959 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:33:38,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:33:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash -56598874, now seen corresponding path program 2 times [2023-11-29 05:33:38,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:33:38,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052465987] [2023-11-29 05:33:38,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:33:38,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:33:38,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:33:38,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482983845] [2023-11-29 05:33:38,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:33:38,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:33:38,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:33:38,972 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:33:38,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 05:33:39,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:33:39,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:33:39,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 05:33:39,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:33:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 05:33:39,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:33:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 05:33:52,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:33:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052465987] [2023-11-29 05:33:52,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:33:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482983845] [2023-11-29 05:33:52,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482983845] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:33:52,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:33:52,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2023-11-29 05:33:52,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922965677] [2023-11-29 05:33:52,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:33:52,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 05:33:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:33:52,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 05:33:52,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=888, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 05:33:52,271 INFO L87 Difference]: Start difference. First operand 2997 states and 3631 transitions. Second operand has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 05:34:00,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 05:34:42,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:34:42,341 INFO L93 Difference]: Finished difference Result 4396 states and 5290 transitions. [2023-11-29 05:34:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-11-29 05:34:42,342 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) Word has length 217 [2023-11-29 05:34:42,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:34:42,349 INFO L225 Difference]: With dead ends: 4396 [2023-11-29 05:34:42,349 INFO L226 Difference]: Without dead ends: 4395 [2023-11-29 05:34:42,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 394 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3838 ImplicationChecksByTransitivity, 40.0s TimeCoverageRelationStatistics Valid=3763, Invalid=9577, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 05:34:42,351 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2414 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:34:42,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 1370 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-11-29 05:34:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2023-11-29 05:34:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3589. [2023-11-29 05:34:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3589 states, 3215 states have (on average 1.146189735614308) internal successors, (3685), 3225 states have internal predecessors, (3685), 331 states have call successors, (331), 32 states have call predecessors, (331), 32 states have return successors, (331), 331 states have call predecessors, (331), 331 states have call successors, (331) [2023-11-29 05:34:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 4347 transitions. [2023-11-29 05:34:43,123 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 4347 transitions. Word has length 217 [2023-11-29 05:34:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:34:43,123 INFO L495 AbstractCegarLoop]: Abstraction has 3589 states and 4347 transitions. [2023-11-29 05:34:43,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 05:34:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 4347 transitions. [2023-11-29 05:34:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 05:34:43,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:34:43,125 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2023-11-29 05:34:43,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 05:34:43,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-29 05:34:43,326 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:34:43,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:34:43,326 INFO L85 PathProgramCache]: Analyzing trace with hash -186534787, now seen corresponding path program 2 times [2023-11-29 05:34:43,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:34:43,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702925788] [2023-11-29 05:34:43,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:34:43,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:34:43,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:34:43,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702092899] [2023-11-29 05:34:43,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 05:34:43,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:34:43,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:34:43,336 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:34:43,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 05:34:43,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 05:34:43,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:34:43,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:34:43,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:34:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 05:34:44,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:34:52,757 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse5 (* (div |c_ULTIMATE.start_main_~d~0#1| 4) 3)) (.cse2 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse3 (* .cse0 2)) (.cse4 (* 2 |c_ULTIMATE.start_main_~d~0#1|)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 8))) (and (or (and (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_86|)) (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse0))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 (* .cse1 3) 2147483650 |c_ULTIMATE.start_main_~d~0#1|)) (<= .cse2 (+ .cse3 .cse4 .cse5 4294967299)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| 8 (* 7 (div (+ .cse0 1227133511) 4))))) (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0))) (or (< .cse2 (+ .cse3 4294967295 .cse4 .cse5)) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_86|)) (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse0 1)))) (<= .cse2 (+ .cse3 .cse4 (* 3 (div (+ (- 1) .cse0) 2)) 4294967304)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ (* 7 .cse1) 2147483654 |c_ULTIMATE.start_main_~d~0#1|)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 2147483654 (* 3 (div (+ .cse0 (- 3)) 4)) |c_ULTIMATE.start_main_~d~0#1|))))) is different from false [2023-11-29 05:35:32,722 WARN L293 SmtUtils]: Spent 25.73s on a formula simplification. DAG size of input: 39 DAG size of output: 21 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:35:52,529 WARN L293 SmtUtils]: Spent 14.28s on a formula simplification. DAG size of input: 33 DAG size of output: 19 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:36:19,277 WARN L293 SmtUtils]: Spent 13.73s on a formula simplification. DAG size of input: 22 DAG size of output: 19 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:36:35,165 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse2 (div (+ (- 1) .cse4) 2))) (let ((.cse6 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse9 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse5 (* 6 .cse2)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse3 (* 2 |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (+ (* (div (+ (- 4294967306) .cse3) 3) 2) 1)) (.cse14 (* .cse1 2)) (.cse10 (<= .cse3 (+ 4294967308 (* 3 (div (+ (- 1) .cse2) 2)) .cse5))) (.cse11 (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse2 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse2) |v_ULTIMATE.start_main_~r~0#1_86|))))) (.cse12 (<= (+ .cse9 1) .cse4)) (.cse15 (+ .cse1 1)) (.cse13 (<= (+ 7 (* .cse6 8) (* (div (* (- 1) .cse4) 2) 8)) .cse4)) (.cse7 (* .cse4 (- 3))) (.cse8 (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (.cse16 (* .cse4 (- 2)))) (and (<= .cse0 (+ (* .cse1 4) .cse2)) (or (< |c_ULTIMATE.start_main_~r~0#1| 2147483648) (< .cse3 (+ (* 3 (div (+ .cse4 (- 3)) 4)) .cse5 4294967304))) (<= .cse3 (+ (* (div (+ .cse4 (- 5)) 8) 6) (* .cse4 3) 4294967311)) (<= (* 2 .cse6) (+ .cse4 (* 2 (div (+ .cse4 (- 6)) 8)) 2)) (or (< 0 (+ |c_ULTIMATE.start_main_~d~0#1| 1)) (and (<= .cse0 (* 5 .cse1)) (<= (+ 5 (* 8 (div (+ .cse7 (- 4294967306) .cse3) 6))) .cse4)) .cse8) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ 2 .cse2)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86| 1)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 (* 7 (div (+ .cse4 (- 7)) 8)) 2147483662)) (<= .cse9 .cse4) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (and .cse10 .cse11 .cse12 .cse13 (<= .cse3 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse4 2) .cse14 4294967294)))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse15) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse14 2 |v_ULTIMATE.start_main_~r~0#1_86|)))) (or (and (<= (+ 2 (* (div (+ .cse16 (- 4294967302) .cse3) 7) 4)) .cse4) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) .cse10 .cse11 .cse12 (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse15) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86|)))) .cse13 (<= (+ (* 8 (div (+ (- 4294967303) .cse7 .cse3) 6)) 6) .cse4)) (not .cse8)) (<= (+ (* (div (+ .cse16 (- 4294967304) .cse3) 7) 4) 1) .cse4)))))) is different from false [2023-11-29 05:36:51,235 WARN L293 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:37:06,232 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (div |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 4))) (let ((.cse7 (* .cse1 2)) (.cse2 (div (+ (- 1) .cse4) 2)) (.cse6 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse8 (+ .cse1 1)) (.cse3 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse5 (* .cse4 (- 3))) (.cse9 (* .cse4 (- 2))) (.cse0 (* 2 |c_ULTIMATE.start_main_~r~0#1|))) (and (<= (+ (* (div (+ (- 4294967306) .cse0) 3) 2) 1) (+ (* .cse1 4) .cse2)) (<= (* 2 .cse3) (+ .cse4 (* 2 (div (+ .cse4 (- 6)) 8)) 2)) (<= (+ 5 (* 8 (div (+ .cse5 (- 4294967306) .cse0) 6))) .cse4) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ 2 .cse2)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86| 1)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 (* 7 (div (+ .cse4 (- 7)) 8)) 2147483662)) (<= .cse6 .cse4) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (< .cse0 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse4 2) .cse7 4294967295))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse7 2 |v_ULTIMATE.start_main_~r~0#1_86|)))) (or (and (<= (+ 2 (* (div (+ .cse9 (- 4294967302) .cse0) 7) 4)) .cse4) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse0 (+ 4294967308 (* 3 (div (+ (- 1) .cse2) 2)) (* 6 .cse2))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse2 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse2) |v_ULTIMATE.start_main_~r~0#1_86|)))) (<= (+ .cse6 1) .cse4) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86|)))) (<= (+ 7 (* .cse3 8) (* (div (* (- 1) .cse4) 2) 8)) .cse4) (<= (+ (* 8 (div (+ (- 4294967303) .cse5 .cse0) 6)) 6) .cse4)) (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0))) (<= (+ (* (div (+ .cse9 (- 4294967304) .cse0) 7) 4) 1) .cse4)))) is different from false [2023-11-29 05:37:55,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:37:55,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702925788] [2023-11-29 05:37:55,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:37:55,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702092899] [2023-11-29 05:37:55,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702092899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:37:55,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:37:55,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 05:37:55,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737678137] [2023-11-29 05:37:55,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 05:37:55,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 05:37:55,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:37:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 05:37:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=403, Unknown=3, NotChecked=138, Total=702 [2023-11-29 05:37:55,590 INFO L87 Difference]: Start difference. First operand 3589 states and 4347 transitions. Second operand has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 05:37:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:37:57,222 INFO L93 Difference]: Finished difference Result 3818 states and 4638 transitions. [2023-11-29 05:37:57,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 05:37:57,223 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 219 [2023-11-29 05:37:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:37:57,229 INFO L225 Difference]: With dead ends: 3818 [2023-11-29 05:37:57,229 INFO L226 Difference]: Without dead ends: 3817 [2023-11-29 05:37:57,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=252, Invalid=627, Unknown=3, NotChecked=174, Total=1056 [2023-11-29 05:37:57,230 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 59 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:37:57,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 718 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:37:57,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2023-11-29 05:37:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3439. [2023-11-29 05:37:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3083 states have (on average 1.1417450535192994) internal successors, (3520), 3093 states have internal predecessors, (3520), 313 states have call successors, (313), 32 states have call predecessors, (313), 32 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-29 05:37:58,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4146 transitions. [2023-11-29 05:37:58,011 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4146 transitions. Word has length 219 [2023-11-29 05:37:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:37:58,011 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 4146 transitions. [2023-11-29 05:37:58,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 05:37:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4146 transitions. [2023-11-29 05:37:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 05:37:58,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:37:58,015 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1] [2023-11-29 05:37:58,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 05:37:58,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 05:37:58,215 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 05:37:58,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:37:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1216064625, now seen corresponding path program 6 times [2023-11-29 05:37:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:37:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35593272] [2023-11-29 05:37:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:37:58,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:37:58,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:37:58,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576951459] [2023-11-29 05:37:58,226 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 05:37:58,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:37:58,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:37:58,227 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:37:58,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78e3b7b-61a7-4ff1-aa11-3c3d08bfeb90/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 05:37:58,330 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-29 05:37:58,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 05:37:58,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 05:37:58,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:37:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 268 proven. 87 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-29 05:37:59,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:38:33,733 WARN L293 SmtUtils]: Spent 17.21s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 05:38:58,040 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:39:26,149 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)