./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/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_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/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_f212f24c-153d-43fb-8747-28a1e3e300f3/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 deafb53b6c5560bead535ea0c1ac7bb85be5c959b9a13b21177e05987440264a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:51:55,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:51:55,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 23:51:55,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:51:55,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:51:55,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:51:55,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:51:55,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:51:55,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:51:55,174 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:51:55,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:51:55,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:51:55,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:51:55,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:51:55,176 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:51:55,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:51:55,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:51:55,178 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:51:55,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:51:55,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:51:55,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:51:55,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:51:55,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:51:55,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:51:55,181 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 23:51:55,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:51:55,181 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:51:55,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:51:55,182 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:51:55,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:51:55,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:51:55,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:51:55,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:51:55,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:51:55,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:51:55,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:51:55,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:51:55,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:51:55,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:51:55,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:51:55,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:51:55,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:51:55,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:51:55,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:51:55,186 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_f212f24c-153d-43fb-8747-28a1e3e300f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deafb53b6c5560bead535ea0c1ac7bb85be5c959b9a13b21177e05987440264a [2023-11-28 23:51:55,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:51:55,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:51:55,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:51:55,417 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:51:55,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:51:55,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c [2023-11-28 23:51:58,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:51:58,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:51:58,326 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound2.c [2023-11-28 23:51:58,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/data/abb317117/811b015d077744668a72e579324dfff9/FLAGbccf23e34 [2023-11-28 23:51:58,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/data/abb317117/811b015d077744668a72e579324dfff9 [2023-11-28 23:51:58,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:51:58,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:51:58,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:51:58,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:51:58,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:51:58,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46352eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58, skipping insertion in model container [2023-11-28 23:51:58,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:51:58,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:51:58,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:51:58,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:51:58,595 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:51:58,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58 WrapperNode [2023-11-28 23:51:58,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:51:58,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:51:58,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:51:58,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:51:58,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,636 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-11-28 23:51:58,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:51:58,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:51:58,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:51:58,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:51:58,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,664 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 23:51:58,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:51:58,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:51:58,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:51:58,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:51:58,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (1/1) ... [2023-11-28 23:51:58,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:51:58,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:51:58,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:51:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:51:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:51:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:51:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:51:58,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:51:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:51:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:51:58,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:51:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:51:58,804 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:51:58,806 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:51:59,112 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:51:59,138 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:51:59,138 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:51:59,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:51:59 BoogieIcfgContainer [2023-11-28 23:51:59,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:51:59,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:51:59,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:51:59,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:51:59,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:51:58" (1/3) ... [2023-11-28 23:51:59,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5259ba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:51:59, skipping insertion in model container [2023-11-28 23:51:59,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:51:58" (2/3) ... [2023-11-28 23:51:59,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5259ba41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:51:59, skipping insertion in model container [2023-11-28 23:51:59,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:51:59" (3/3) ... [2023-11-28 23:51:59,148 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound2.c [2023-11-28 23:51:59,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:51:59,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-28 23:51:59,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:51:59,216 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;@6731d204, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:51:59,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-28 23:51:59,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-28 23:51:59,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-28 23:51:59,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:51:59,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:51:59,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:51:59,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:51:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash -639812028, now seen corresponding path program 1 times [2023-11-28 23:51:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:51:59,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162102700] [2023-11-28 23:51:59,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:51:59,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:51:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:51:59,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:51:59,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162102700] [2023-11-28 23:51:59,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-28 23:51:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996238720] [2023-11-28 23:51:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:51:59,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:51:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:51:59,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:51:59,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:51:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:51:59,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:51:59,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:51:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 23:51:59,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:51:59,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996238720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:51:59,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:51:59,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:51:59,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317155398] [2023-11-28 23:51:59,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:51:59,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:51:59,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:51:59,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:51:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:51:59,475 INFO L87 Difference]: Start difference. First operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:51:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:51:59,506 INFO L93 Difference]: Finished difference Result 214 states and 241 transitions. [2023-11-28 23:51:59,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:51:59,508 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-28 23:51:59,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:51:59,516 INFO L225 Difference]: With dead ends: 214 [2023-11-28 23:51:59,517 INFO L226 Difference]: Without dead ends: 105 [2023-11-28 23:51:59,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:51:59,523 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:51:59,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:51:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-28 23:51:59,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-28 23:51:59,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-28 23:51:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2023-11-28 23:51:59,563 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2023-11-28 23:51:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:51:59,564 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2023-11-28 23:51:59,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:51:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2023-11-28 23:51:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-28 23:51:59,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:51:59,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:51:59,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:51:59,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 23:51:59,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:51:59,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:51:59,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1469837050, now seen corresponding path program 1 times [2023-11-28 23:51:59,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:51:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557433736] [2023-11-28 23:51:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:51:59,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:51:59,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:51:59,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335096418] [2023-11-28 23:51:59,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:51:59,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:51:59,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:51:59,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:51:59,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:51:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:51:59,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:51:59,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:51:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:51:59,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:00,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:00,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557433736] [2023-11-28 23:52:00,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:00,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335096418] [2023-11-28 23:52:00,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335096418] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:00,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:00,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:52:00,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043971083] [2023-11-28 23:52:00,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:00,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:00,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:00,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:00,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:52:00,166 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:00,488 INFO L93 Difference]: Finished difference Result 154 states and 167 transitions. [2023-11-28 23:52:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:00,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-28 23:52:00,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:00,491 INFO L225 Difference]: With dead ends: 154 [2023-11-28 23:52:00,491 INFO L226 Difference]: Without dead ends: 145 [2023-11-28 23:52:00,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:52:00,493 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 307 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:00,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 201 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:52:00,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-28 23:52:00,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 127. [2023-11-28 23:52:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 78 states have (on average 1.705128205128205) internal successors, (133), 117 states have internal predecessors, (133), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-28 23:52:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2023-11-28 23:52:00,509 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 20 [2023-11-28 23:52:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:00,510 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2023-11-28 23:52:00,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2023-11-28 23:52:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-28 23:52:00,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:00,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:00,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:52:00,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-28 23:52:00,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:00,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:00,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1679691756, now seen corresponding path program 1 times [2023-11-28 23:52:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976365387] [2023-11-28 23:52:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:00,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:00,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314305568] [2023-11-28 23:52:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:00,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:00,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:00,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:00,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:52:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:00,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 23:52:00,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:00,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:01,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:01,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976365387] [2023-11-28 23:52:01,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:01,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314305568] [2023-11-28 23:52:01,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314305568] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:01,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:01,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-28 23:52:01,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405638211] [2023-11-28 23:52:01,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:01,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:52:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:52:01,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:52:01,021 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:01,339 INFO L93 Difference]: Finished difference Result 186 states and 213 transitions. [2023-11-28 23:52:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:52:01,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-28 23:52:01,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:01,342 INFO L225 Difference]: With dead ends: 186 [2023-11-28 23:52:01,342 INFO L226 Difference]: Without dead ends: 168 [2023-11-28 23:52:01,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:52:01,344 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 177 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:01,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 209 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:52:01,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-28 23:52:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 152. [2023-11-28 23:52:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6153846153846154) internal successors, (168), 141 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-28 23:52:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 184 transitions. [2023-11-28 23:52:01,360 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 184 transitions. Word has length 21 [2023-11-28 23:52:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:01,361 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 184 transitions. [2023-11-28 23:52:01,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 184 transitions. [2023-11-28 23:52:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-28 23:52:01,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:01,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:01,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:52:01,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:01,567 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:01,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash 530836936, now seen corresponding path program 1 times [2023-11-28 23:52:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:01,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310641851] [2023-11-28 23:52:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:01,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:01,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:01,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96715660] [2023-11-28 23:52:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:01,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:01,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:01,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:01,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:52:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:01,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 23:52:01,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:01,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:01,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:01,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310641851] [2023-11-28 23:52:01,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:01,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96715660] [2023-11-28 23:52:01,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96715660] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:01,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:01,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:52:01,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478696620] [2023-11-28 23:52:01,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:01,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:01,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:01,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:52:01,865 INFO L87 Difference]: Start difference. First operand 152 states and 184 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:02,086 INFO L93 Difference]: Finished difference Result 163 states and 191 transitions. [2023-11-28 23:52:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:02,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-11-28 23:52:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:02,088 INFO L225 Difference]: With dead ends: 163 [2023-11-28 23:52:02,088 INFO L226 Difference]: Without dead ends: 162 [2023-11-28 23:52:02,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:52:02,090 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:02,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 237 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:52:02,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-28 23:52:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 152. [2023-11-28 23:52:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6057692307692308) internal successors, (167), 141 states have internal predecessors, (167), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-28 23:52:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2023-11-28 23:52:02,117 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2023-11-28 23:52:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:02,117 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2023-11-28 23:52:02,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:52:02,118 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2023-11-28 23:52:02,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-28 23:52:02,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:02,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:02,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:52:02,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:02,324 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:02,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:02,324 INFO L85 PathProgramCache]: Analyzing trace with hash -723924114, now seen corresponding path program 1 times [2023-11-28 23:52:02,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:02,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924248014] [2023-11-28 23:52:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:02,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:02,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:02,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524126747] [2023-11-28 23:52:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:02,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:02,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:02,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:52:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:02,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:52:02,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:02,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:02,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924248014] [2023-11-28 23:52:02,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:02,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524126747] [2023-11-28 23:52:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524126747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:02,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:02,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:02,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375898274] [2023-11-28 23:52:02,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:02,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:02,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:02,411 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-28 23:52:02,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:02,778 INFO L93 Difference]: Finished difference Result 239 states and 275 transitions. [2023-11-28 23:52:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:02,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 23 [2023-11-28 23:52:02,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:02,781 INFO L225 Difference]: With dead ends: 239 [2023-11-28 23:52:02,781 INFO L226 Difference]: Without dead ends: 234 [2023-11-28 23:52:02,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:02,782 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 76 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:02,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 138 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:52:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-28 23:52:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 196. [2023-11-28 23:52:02,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 147 states have (on average 1.6666666666666667) internal successors, (245), 184 states have internal predecessors, (245), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 23:52:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 263 transitions. [2023-11-28 23:52:02,802 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 263 transitions. Word has length 23 [2023-11-28 23:52:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:02,802 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 263 transitions. [2023-11-28 23:52:02,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-28 23:52:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 263 transitions. [2023-11-28 23:52:02,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-28 23:52:02,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:02,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:02,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 23:52:03,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:03,004 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:03,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash -966810998, now seen corresponding path program 1 times [2023-11-28 23:52:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:03,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091582845] [2023-11-28 23:52:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:03,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884852660] [2023-11-28 23:52:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:03,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:03,018 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:03,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:52:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:03,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:03,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:03,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:03,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:03,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091582845] [2023-11-28 23:52:03,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:03,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884852660] [2023-11-28 23:52:03,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884852660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:03,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:03,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:03,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368923774] [2023-11-28 23:52:03,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:03,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:03,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:03,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:03,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:03,084 INFO L87 Difference]: Start difference. First operand 196 states and 263 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2023-11-28 23:52:03,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:03,507 INFO L93 Difference]: Finished difference Result 310 states and 398 transitions. [2023-11-28 23:52:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:03,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2023-11-28 23:52:03,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:03,510 INFO L225 Difference]: With dead ends: 310 [2023-11-28 23:52:03,510 INFO L226 Difference]: Without dead ends: 309 [2023-11-28 23:52:03,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:03,511 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 116 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:03,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 146 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:52:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-28 23:52:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 219. [2023-11-28 23:52:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 169 states have (on average 1.650887573964497) internal successors, (279), 206 states have internal predecessors, (279), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:03,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 299 transitions. [2023-11-28 23:52:03,528 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 299 transitions. Word has length 24 [2023-11-28 23:52:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:03,528 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 299 transitions. [2023-11-28 23:52:03,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2023-11-28 23:52:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 299 transitions. [2023-11-28 23:52:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-28 23:52:03,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:03,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:03,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 23:52:03,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:03,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:03,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash 93630192, now seen corresponding path program 1 times [2023-11-28 23:52:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104663588] [2023-11-28 23:52:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:03,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573668814] [2023-11-28 23:52:03,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:03,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:03,748 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:03,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:52:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:03,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:03,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:03,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:03,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104663588] [2023-11-28 23:52:03,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573668814] [2023-11-28 23:52:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573668814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:03,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:03,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231247565] [2023-11-28 23:52:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:03,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:03,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:03,818 INFO L87 Difference]: Start difference. First operand 219 states and 299 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2023-11-28 23:52:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:04,520 INFO L93 Difference]: Finished difference Result 309 states and 396 transitions. [2023-11-28 23:52:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:04,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 [2023-11-28 23:52:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:04,523 INFO L225 Difference]: With dead ends: 309 [2023-11-28 23:52:04,523 INFO L226 Difference]: Without dead ends: 308 [2023-11-28 23:52:04,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:04,524 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 111 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:04,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 155 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:52:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-28 23:52:04,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 219. [2023-11-28 23:52:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 169 states have (on average 1.6390532544378698) internal successors, (277), 206 states have internal predecessors, (277), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 297 transitions. [2023-11-28 23:52:04,541 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 297 transitions. Word has length 25 [2023-11-28 23:52:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:04,541 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 297 transitions. [2023-11-28 23:52:04,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2023-11-28 23:52:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 297 transitions. [2023-11-28 23:52:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-28 23:52:04,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:04,543 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:04,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 23:52:04,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-28 23:52:04,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:04,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:04,746 INFO L85 PathProgramCache]: Analyzing trace with hash 591387408, now seen corresponding path program 1 times [2023-11-28 23:52:04,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:04,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284427050] [2023-11-28 23:52:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:04,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:04,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:04,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745259994] [2023-11-28 23:52:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:04,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:04,759 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:04,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 23:52:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:04,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:52:04,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:04,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:04,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:04,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284427050] [2023-11-28 23:52:04,878 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:04,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745259994] [2023-11-28 23:52:04,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745259994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:04,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:04,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:52:04,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422567681] [2023-11-28 23:52:04,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:04,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:52:04,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:04,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:52:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:52:04,880 INFO L87 Difference]: Start difference. First operand 219 states and 297 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:05,121 INFO L93 Difference]: Finished difference Result 235 states and 302 transitions. [2023-11-28 23:52:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:52:05,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2023-11-28 23:52:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:05,123 INFO L225 Difference]: With dead ends: 235 [2023-11-28 23:52:05,123 INFO L226 Difference]: Without dead ends: 234 [2023-11-28 23:52:05,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:52:05,124 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:05,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 250 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:52:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-11-28 23:52:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 219. [2023-11-28 23:52:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 169 states have (on average 1.6331360946745561) internal successors, (276), 206 states have internal predecessors, (276), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 296 transitions. [2023-11-28 23:52:05,149 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 296 transitions. Word has length 38 [2023-11-28 23:52:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:05,150 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 296 transitions. [2023-11-28 23:52:05,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 296 transitions. [2023-11-28 23:52:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-28 23:52:05,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:05,151 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:05,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 23:52:05,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-28 23:52:05,356 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:05,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:05,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1166531614, now seen corresponding path program 1 times [2023-11-28 23:52:05,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:05,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190645875] [2023-11-28 23:52:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:05,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:05,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:05,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867467849] [2023-11-28 23:52:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:05,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:05,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:05,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 23:52:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:05,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 23:52:05,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:05,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:05,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190645875] [2023-11-28 23:52:05,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867467849] [2023-11-28 23:52:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867467849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:05,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:52:05,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128590550] [2023-11-28 23:52:05,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:05,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:05,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:05,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:05,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:52:05,633 INFO L87 Difference]: Start difference. First operand 219 states and 296 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:06,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:06,172 INFO L93 Difference]: Finished difference Result 252 states and 345 transitions. [2023-11-28 23:52:06,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:06,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2023-11-28 23:52:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:06,174 INFO L225 Difference]: With dead ends: 252 [2023-11-28 23:52:06,174 INFO L226 Difference]: Without dead ends: 247 [2023-11-28 23:52:06,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:52:06,175 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 183 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:06,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 117 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:52:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-28 23:52:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 210. [2023-11-28 23:52:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 165 states have (on average 1.5515151515151515) internal successors, (256), 197 states have internal predecessors, (256), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 276 transitions. [2023-11-28 23:52:06,188 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 276 transitions. Word has length 39 [2023-11-28 23:52:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:06,188 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 276 transitions. [2023-11-28 23:52:06,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:06,189 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 276 transitions. [2023-11-28 23:52:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-28 23:52:06,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:06,190 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:06,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:06,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-28 23:52:06,396 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:06,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:06,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1153140560, now seen corresponding path program 1 times [2023-11-28 23:52:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:06,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246881880] [2023-11-28 23:52:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:06,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:06,406 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:06,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929650207] [2023-11-28 23:52:06,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:06,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:06,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:06,407 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:06,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 23:52:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:06,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 23:52:06,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:06,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:06,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:06,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246881880] [2023-11-28 23:52:06,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:06,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929650207] [2023-11-28 23:52:06,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929650207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:06,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:06,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:06,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969841667] [2023-11-28 23:52:06,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:06,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:06,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:06,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:06,523 INFO L87 Difference]: Start difference. First operand 210 states and 276 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:07,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:07,015 INFO L93 Difference]: Finished difference Result 240 states and 276 transitions. [2023-11-28 23:52:07,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2023-11-28 23:52:07,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:07,018 INFO L225 Difference]: With dead ends: 240 [2023-11-28 23:52:07,018 INFO L226 Difference]: Without dead ends: 236 [2023-11-28 23:52:07,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:52:07,019 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 202 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:07,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 88 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:52:07,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-28 23:52:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 207. [2023-11-28 23:52:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 194 states have internal predecessors, (248), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 268 transitions. [2023-11-28 23:52:07,029 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 268 transitions. Word has length 39 [2023-11-28 23:52:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:07,029 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 268 transitions. [2023-11-28 23:52:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 268 transitions. [2023-11-28 23:52:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 23:52:07,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:07,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:07,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 23:52:07,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:07,235 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:07,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:07,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1802741779, now seen corresponding path program 1 times [2023-11-28 23:52:07,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:07,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841996681] [2023-11-28 23:52:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:07,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:07,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:07,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774941163] [2023-11-28 23:52:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:07,244 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:07,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 23:52:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:07,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 23:52:07,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:07,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:07,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:07,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841996681] [2023-11-28 23:52:07,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:07,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774941163] [2023-11-28 23:52:07,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774941163] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:07,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:07,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-28 23:52:07,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218227390] [2023-11-28 23:52:07,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:07,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:07,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:07,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-28 23:52:07,597 INFO L87 Difference]: Start difference. First operand 207 states and 268 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:08,227 INFO L93 Difference]: Finished difference Result 250 states and 291 transitions. [2023-11-28 23:52:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:08,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 40 [2023-11-28 23:52:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:08,229 INFO L225 Difference]: With dead ends: 250 [2023-11-28 23:52:08,229 INFO L226 Difference]: Without dead ends: 246 [2023-11-28 23:52:08,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:52:08,230 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 215 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:08,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 192 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:52:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-28 23:52:08,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 207. [2023-11-28 23:52:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 162 states have (on average 1.5061728395061729) internal successors, (244), 194 states have internal predecessors, (244), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 264 transitions. [2023-11-28 23:52:08,239 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 264 transitions. Word has length 40 [2023-11-28 23:52:08,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:08,239 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 264 transitions. [2023-11-28 23:52:08,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:08,239 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 264 transitions. [2023-11-28 23:52:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-28 23:52:08,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:08,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:08,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 23:52:08,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:08,441 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:08,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1387619090, now seen corresponding path program 1 times [2023-11-28 23:52:08,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:08,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929602847] [2023-11-28 23:52:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:08,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:08,449 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639145105] [2023-11-28 23:52:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:08,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:08,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:08,450 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:08,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 23:52:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:08,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:08,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:08,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:08,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:08,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929602847] [2023-11-28 23:52:08,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:08,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639145105] [2023-11-28 23:52:08,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639145105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:08,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:08,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516883233] [2023-11-28 23:52:08,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:08,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:08,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:08,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:08,526 INFO L87 Difference]: Start difference. First operand 207 states and 264 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:09,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:09,153 INFO L93 Difference]: Finished difference Result 295 states and 360 transitions. [2023-11-28 23:52:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:09,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-28 23:52:09,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:09,155 INFO L225 Difference]: With dead ends: 295 [2023-11-28 23:52:09,155 INFO L226 Difference]: Without dead ends: 294 [2023-11-28 23:52:09,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:09,156 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 64 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:09,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 191 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:52:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-28 23:52:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 219. [2023-11-28 23:52:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 174 states have (on average 1.5) internal successors, (261), 206 states have internal predecessors, (261), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 23:52:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 281 transitions. [2023-11-28 23:52:09,164 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 281 transitions. Word has length 40 [2023-11-28 23:52:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:09,165 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 281 transitions. [2023-11-28 23:52:09,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 281 transitions. [2023-11-28 23:52:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:52:09,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:09,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:09,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 23:52:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:09,366 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:09,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash 464588800, now seen corresponding path program 1 times [2023-11-28 23:52:09,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:09,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172222086] [2023-11-28 23:52:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:09,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:09,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:09,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829693961] [2023-11-28 23:52:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:09,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:09,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:09,376 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:09,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 23:52:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:09,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:52:09,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:09,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:09,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172222086] [2023-11-28 23:52:09,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829693961] [2023-11-28 23:52:09,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829693961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:09,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:09,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:52:09,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416086065] [2023-11-28 23:52:09,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:09,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:09,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:09,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:52:09,509 INFO L87 Difference]: Start difference. First operand 219 states and 281 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:11,142 INFO L93 Difference]: Finished difference Result 427 states and 547 transitions. [2023-11-28 23:52:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2023-11-28 23:52:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:11,145 INFO L225 Difference]: With dead ends: 427 [2023-11-28 23:52:11,145 INFO L226 Difference]: Without dead ends: 422 [2023-11-28 23:52:11,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:52:11,146 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 535 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:11,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 84 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-28 23:52:11,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-11-28 23:52:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 318. [2023-11-28 23:52:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 270 states have (on average 1.5444444444444445) internal successors, (417), 302 states have internal predecessors, (417), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:52:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 443 transitions. [2023-11-28 23:52:11,160 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 443 transitions. Word has length 41 [2023-11-28 23:52:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:11,160 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 443 transitions. [2023-11-28 23:52:11,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 443 transitions. [2023-11-28 23:52:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:52:11,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:11,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:11,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 23:52:11,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-28 23:52:11,364 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:11,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:11,364 INFO L85 PathProgramCache]: Analyzing trace with hash 50420416, now seen corresponding path program 1 times [2023-11-28 23:52:11,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:11,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97958290] [2023-11-28 23:52:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:11,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:11,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:11,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346068737] [2023-11-28 23:52:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:11,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:11,374 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:11,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 23:52:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:11,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:11,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:11,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97958290] [2023-11-28 23:52:11,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346068737] [2023-11-28 23:52:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346068737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:11,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:11,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029129919] [2023-11-28 23:52:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:11,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:11,453 INFO L87 Difference]: Start difference. First operand 318 states and 443 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:11,800 INFO L93 Difference]: Finished difference Result 375 states and 494 transitions. [2023-11-28 23:52:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:11,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-28 23:52:11,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:11,802 INFO L225 Difference]: With dead ends: 375 [2023-11-28 23:52:11,803 INFO L226 Difference]: Without dead ends: 374 [2023-11-28 23:52:11,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:11,803 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 54 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:11,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 215 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:52:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-28 23:52:11,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 329. [2023-11-28 23:52:11,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 281 states have (on average 1.5338078291814947) internal successors, (431), 313 states have internal predecessors, (431), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:52:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 457 transitions. [2023-11-28 23:52:11,816 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 457 transitions. Word has length 41 [2023-11-28 23:52:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:11,816 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 457 transitions. [2023-11-28 23:52:11,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 457 transitions. [2023-11-28 23:52:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-28 23:52:11,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:11,817 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:11,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 23:52:12,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:12,018 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:12,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash 66518930, now seen corresponding path program 1 times [2023-11-28 23:52:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:12,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58648130] [2023-11-28 23:52:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:12,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:12,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651018065] [2023-11-28 23:52:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:12,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:12,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:12,025 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:12,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 23:52:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:12,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:12,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:12,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58648130] [2023-11-28 23:52:12,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651018065] [2023-11-28 23:52:12,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651018065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:12,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:12,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:12,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870898093] [2023-11-28 23:52:12,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:12,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:12,093 INFO L87 Difference]: Start difference. First operand 329 states and 457 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:12,513 INFO L93 Difference]: Finished difference Result 374 states and 492 transitions. [2023-11-28 23:52:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:12,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-28 23:52:12,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:12,515 INFO L225 Difference]: With dead ends: 374 [2023-11-28 23:52:12,516 INFO L226 Difference]: Without dead ends: 373 [2023-11-28 23:52:12,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:12,516 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 52 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:12,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 203 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:52:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-28 23:52:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 331. [2023-11-28 23:52:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 283 states have (on average 1.530035335689046) internal successors, (433), 315 states have internal predecessors, (433), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:52:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 459 transitions. [2023-11-28 23:52:12,535 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 459 transitions. Word has length 41 [2023-11-28 23:52:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:12,535 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 459 transitions. [2023-11-28 23:52:12,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 459 transitions. [2023-11-28 23:52:12,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-28 23:52:12,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:12,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:12,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 23:52:12,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:12,736 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:12,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1517351043, now seen corresponding path program 1 times [2023-11-28 23:52:12,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:12,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891374222] [2023-11-28 23:52:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:12,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:12,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:12,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28556054] [2023-11-28 23:52:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:12,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:12,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:12,747 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:12,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 23:52:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:12,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:52:12,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:12,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:12,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:12,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891374222] [2023-11-28 23:52:12,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:12,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28556054] [2023-11-28 23:52:12,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28556054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:12,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:12,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 23:52:12,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282590100] [2023-11-28 23:52:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:12,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:52:12,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:12,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:52:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:52:12,892 INFO L87 Difference]: Start difference. First operand 331 states and 459 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:13,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:13,331 INFO L93 Difference]: Finished difference Result 360 states and 493 transitions. [2023-11-28 23:52:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 23:52:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-28 23:52:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:13,334 INFO L225 Difference]: With dead ends: 360 [2023-11-28 23:52:13,334 INFO L226 Difference]: Without dead ends: 352 [2023-11-28 23:52:13,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:52:13,336 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 274 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:13,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 71 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:52:13,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-28 23:52:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 323. [2023-11-28 23:52:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 283 states have (on average 1.4452296819787986) internal successors, (409), 307 states have internal predecessors, (409), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:52:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 435 transitions. [2023-11-28 23:52:13,355 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 435 transitions. Word has length 42 [2023-11-28 23:52:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:13,356 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 435 transitions. [2023-11-28 23:52:13,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:13,356 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 435 transitions. [2023-11-28 23:52:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-28 23:52:13,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:13,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:13,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 23:52:13,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 23:52:13,557 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:13,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1563033013, now seen corresponding path program 1 times [2023-11-28 23:52:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:13,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292284109] [2023-11-28 23:52:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:13,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:13,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:13,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630731015] [2023-11-28 23:52:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:13,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:13,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:13,577 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:13,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 23:52:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:13,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:52:13,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:52:13,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:52:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292284109] [2023-11-28 23:52:13,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630731015] [2023-11-28 23:52:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630731015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:52:13,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:52:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:52:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768504983] [2023-11-28 23:52:13,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:52:13,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:52:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:52:13,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:52:13,653 INFO L87 Difference]: Start difference. First operand 323 states and 435 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:14,083 INFO L93 Difference]: Finished difference Result 357 states and 462 transitions. [2023-11-28 23:52:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:52:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-28 23:52:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:14,086 INFO L225 Difference]: With dead ends: 357 [2023-11-28 23:52:14,086 INFO L226 Difference]: Without dead ends: 356 [2023-11-28 23:52:14,086 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 [2023-11-28 23:52:14,086 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 43 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:14,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 172 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:52:14,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-28 23:52:14,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 325. [2023-11-28 23:52:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 285 states have (on average 1.4421052631578948) internal successors, (411), 309 states have internal predecessors, (411), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 23:52:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 437 transitions. [2023-11-28 23:52:14,100 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 437 transitions. Word has length 42 [2023-11-28 23:52:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:14,100 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 437 transitions. [2023-11-28 23:52:14,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:52:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 437 transitions. [2023-11-28 23:52:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-28 23:52:14,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:14,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-28 23:52:14,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 23:52:14,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 23:52:14,303 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:14,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:14,303 INFO L85 PathProgramCache]: Analyzing trace with hash 352887974, now seen corresponding path program 1 times [2023-11-28 23:52:14,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:14,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990980699] [2023-11-28 23:52:14,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:14,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:14,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:14,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612443780] [2023-11-28 23:52:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:14,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:14,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:14,313 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:14,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 23:52:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:14,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:52:14,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:14,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:19,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:19,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990980699] [2023-11-28 23:52:19,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:19,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612443780] [2023-11-28 23:52:19,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612443780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:19,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:19,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 23:52:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749092959] [2023-11-28 23:52:19,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:19,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:52:19,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:19,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:52:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:52:19,556 INFO L87 Difference]: Start difference. First operand 325 states and 437 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:52:20,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:20,424 INFO L93 Difference]: Finished difference Result 453 states and 596 transitions. [2023-11-28 23:52:20,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:52:20,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 42 [2023-11-28 23:52:20,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:20,427 INFO L225 Difference]: With dead ends: 453 [2023-11-28 23:52:20,427 INFO L226 Difference]: Without dead ends: 436 [2023-11-28 23:52:20,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:52:20,428 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 182 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:20,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 213 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:52:20,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-11-28 23:52:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 409. [2023-11-28 23:52:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 365 states have (on average 1.4328767123287671) internal successors, (523), 389 states have internal predecessors, (523), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-28 23:52:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 557 transitions. [2023-11-28 23:52:20,453 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 557 transitions. Word has length 42 [2023-11-28 23:52:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:20,454 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 557 transitions. [2023-11-28 23:52:20,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:52:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 557 transitions. [2023-11-28 23:52:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-28 23:52:20,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:20,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:52:20,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-28 23:52:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 23:52:20,655 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:20,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1945374644, now seen corresponding path program 1 times [2023-11-28 23:52:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:20,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548000435] [2023-11-28 23:52:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:20,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:20,682 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345897535] [2023-11-28 23:52:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:20,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:20,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:20,684 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:20,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 23:52:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:20,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 23:52:20,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:20,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:52:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548000435] [2023-11-28 23:52:21,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:52:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345897535] [2023-11-28 23:52:21,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345897535] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:52:21,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:52:21,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 23:52:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764547194] [2023-11-28 23:52:21,986 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:52:21,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:52:21,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:52:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:52:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:52:21,987 INFO L87 Difference]: Start difference. First operand 409 states and 557 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:52:22,849 INFO L93 Difference]: Finished difference Result 911 states and 1258 transitions. [2023-11-28 23:52:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:52:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2023-11-28 23:52:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:52:22,852 INFO L225 Difference]: With dead ends: 911 [2023-11-28 23:52:22,852 INFO L226 Difference]: Without dead ends: 574 [2023-11-28 23:52:22,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:52:22,855 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 231 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:52:22,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 229 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:52:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-11-28 23:52:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 518. [2023-11-28 23:52:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 467 states have (on average 1.45610278372591) internal successors, (680), 491 states have internal predecessors, (680), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:52:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 728 transitions. [2023-11-28 23:52:22,890 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 728 transitions. Word has length 43 [2023-11-28 23:52:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:52:22,891 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 728 transitions. [2023-11-28 23:52:22,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:52:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 728 transitions. [2023-11-28 23:52:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-28 23:52:22,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:52:22,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-28 23:52:22,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 23:52:23,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:23,092 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:52:23,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:52:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash -177071768, now seen corresponding path program 1 times [2023-11-28 23:52:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:52:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036980931] [2023-11-28 23:52:23,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:23,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:52:23,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:52:23,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009730835] [2023-11-28 23:52:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:52:23,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:52:23,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:52:23,100 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:52:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 23:52:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:52:23,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-28 23:52:23,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:52:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:52:23,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:52:40,837 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:53:07,168 WARN L293 SmtUtils]: Spent 21.75s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:53:23,597 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:53:31,602 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-28 23:54:06,349 WARN L293 SmtUtils]: Spent 28.67s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-28 23:54:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036980931] [2023-11-28 23:54:13,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:13,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009730835] [2023-11-28 23:54:13,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009730835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:13,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:13,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:54:13,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386756260] [2023-11-28 23:54:13,279 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:13,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:54:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:54:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=220, Unknown=1, NotChecked=0, Total=306 [2023-11-28 23:54:13,280 INFO L87 Difference]: Start difference. First operand 518 states and 728 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:14,039 INFO L93 Difference]: Finished difference Result 547 states and 740 transitions. [2023-11-28 23:54:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2023-11-28 23:54:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:14,042 INFO L225 Difference]: With dead ends: 547 [2023-11-28 23:54:14,042 INFO L226 Difference]: Without dead ends: 545 [2023-11-28 23:54:14,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 63.0s TimeCoverageRelationStatistics Valid=183, Invalid=416, Unknown=1, NotChecked=0, Total=600 [2023-11-28 23:54:14,043 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 201 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:14,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 177 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:54:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-11-28 23:54:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 518. [2023-11-28 23:54:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 467 states have (on average 1.4389721627408993) internal successors, (672), 491 states have internal predecessors, (672), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:54:14,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 720 transitions. [2023-11-28 23:54:14,078 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 720 transitions. Word has length 44 [2023-11-28 23:54:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:14,078 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 720 transitions. [2023-11-28 23:54:14,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 720 transitions. [2023-11-28 23:54:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 23:54:14,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:14,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:14,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-28 23:54:14,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:14,280 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:14,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1125736252, now seen corresponding path program 1 times [2023-11-28 23:54:14,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:14,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221525186] [2023-11-28 23:54:14,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:14,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:14,287 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:14,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [191036022] [2023-11-28 23:54:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:14,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:14,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:14,289 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:14,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 23:54:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:14,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:54:14,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:14,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:14,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221525186] [2023-11-28 23:54:14,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191036022] [2023-11-28 23:54:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191036022] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:54:14,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:54:14,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 23:54:14,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522629587] [2023-11-28 23:54:14,686 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:14,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-28 23:54:14,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:14,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-28 23:54:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:54:14,687 INFO L87 Difference]: Start difference. First operand 518 states and 720 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-28 23:54:21,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-28 23:54:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:22,876 INFO L93 Difference]: Finished difference Result 1066 states and 1426 transitions. [2023-11-28 23:54:22,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:54:22,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 45 [2023-11-28 23:54:22,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:22,883 INFO L225 Difference]: With dead ends: 1066 [2023-11-28 23:54:22,883 INFO L226 Difference]: Without dead ends: 1059 [2023-11-28 23:54:22,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:54:22,885 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 868 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 81 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:22,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 153 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 747 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2023-11-28 23:54:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-11-28 23:54:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 626. [2023-11-28 23:54:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 570 states have (on average 1.4157894736842105) internal successors, (807), 594 states have internal predecessors, (807), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-28 23:54:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 865 transitions. [2023-11-28 23:54:22,921 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 865 transitions. Word has length 45 [2023-11-28 23:54:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:22,921 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 865 transitions. [2023-11-28 23:54:22,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-28 23:54:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 865 transitions. [2023-11-28 23:54:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 23:54:22,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:22,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:22,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-28 23:54:23,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-28 23:54:23,123 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:23,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1718887205, now seen corresponding path program 1 times [2023-11-28 23:54:23,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:23,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773733790] [2023-11-28 23:54:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:23,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:23,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:23,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673408513] [2023-11-28 23:54:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:23,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:23,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:23,131 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:23,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 23:54:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:23,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:54:23,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:23,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:23,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:25,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773733790] [2023-11-28 23:54:25,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:25,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673408513] [2023-11-28 23:54:25,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673408513] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:25,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:25,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 23:54:25,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556979496] [2023-11-28 23:54:25,559 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:25,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:54:25,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:25,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:54:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:54:25,561 INFO L87 Difference]: Start difference. First operand 626 states and 865 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:26,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:26,187 INFO L93 Difference]: Finished difference Result 1016 states and 1405 transitions. [2023-11-28 23:54:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:54:26,190 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2023-11-28 23:54:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:26,192 INFO L225 Difference]: With dead ends: 1016 [2023-11-28 23:54:26,193 INFO L226 Difference]: Without dead ends: 496 [2023-11-28 23:54:26,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:54:26,194 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 146 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:26,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 132 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:54:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-28 23:54:26,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 425. [2023-11-28 23:54:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 379 states have (on average 1.3746701846965699) internal successors, (521), 402 states have internal predecessors, (521), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-28 23:54:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 561 transitions. [2023-11-28 23:54:26,220 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 561 transitions. Word has length 45 [2023-11-28 23:54:26,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:26,220 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 561 transitions. [2023-11-28 23:54:26,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:26,220 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 561 transitions. [2023-11-28 23:54:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-28 23:54:26,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:26,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-28 23:54:26,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-28 23:54:26,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-28 23:54:26,422 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:26,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1194257458, now seen corresponding path program 1 times [2023-11-28 23:54:26,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:26,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877025934] [2023-11-28 23:54:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:26,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:26,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:26,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356655797] [2023-11-28 23:54:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:26,429 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:26,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 23:54:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:26,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-28 23:54:26,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:26,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:30,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:30,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877025934] [2023-11-28 23:54:30,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:30,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356655797] [2023-11-28 23:54:30,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356655797] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:30,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:54:30,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508544007] [2023-11-28 23:54:30,126 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:30,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:54:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:54:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-11-28 23:54:30,127 INFO L87 Difference]: Start difference. First operand 425 states and 561 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:30,832 INFO L93 Difference]: Finished difference Result 603 states and 775 transitions. [2023-11-28 23:54:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2023-11-28 23:54:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:30,835 INFO L225 Difference]: With dead ends: 603 [2023-11-28 23:54:30,835 INFO L226 Difference]: Without dead ends: 398 [2023-11-28 23:54:30,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2023-11-28 23:54:30,836 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 166 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:30,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 217 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:54:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-28 23:54:30,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 367. [2023-11-28 23:54:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 325 states have (on average 1.3723076923076922) internal successors, (446), 348 states have internal predecessors, (446), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-28 23:54:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 478 transitions. [2023-11-28 23:54:30,859 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 478 transitions. Word has length 45 [2023-11-28 23:54:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:30,859 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 478 transitions. [2023-11-28 23:54:30,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 478 transitions. [2023-11-28 23:54:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-28 23:54:30,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:30,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:30,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-28 23:54:31,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-28 23:54:31,061 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:31,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -538085305, now seen corresponding path program 1 times [2023-11-28 23:54:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939602884] [2023-11-28 23:54:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:31,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:31,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:31,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452129681] [2023-11-28 23:54:31,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:31,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:31,067 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:31,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 23:54:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:31,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-28 23:54:31,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:54:31,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:54:31,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:31,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939602884] [2023-11-28 23:54:31,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:31,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452129681] [2023-11-28 23:54:31,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452129681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:31,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:31,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-28 23:54:31,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939517053] [2023-11-28 23:54:31,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:31,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:54:31,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:31,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:54:31,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:54:31,465 INFO L87 Difference]: Start difference. First operand 367 states and 478 transitions. Second operand has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:32,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:32,194 INFO L93 Difference]: Finished difference Result 557 states and 708 transitions. [2023-11-28 23:54:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:32,194 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2023-11-28 23:54:32,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:32,196 INFO L225 Difference]: With dead ends: 557 [2023-11-28 23:54:32,196 INFO L226 Difference]: Without dead ends: 250 [2023-11-28 23:54:32,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:54:32,197 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 172 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:32,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 215 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:54:32,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-28 23:54:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 230. [2023-11-28 23:54:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 193 states have (on average 1.3367875647668395) internal successors, (258), 216 states have internal predecessors, (258), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 280 transitions. [2023-11-28 23:54:32,208 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 280 transitions. Word has length 46 [2023-11-28 23:54:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:32,209 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 280 transitions. [2023-11-28 23:54:32,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 280 transitions. [2023-11-28 23:54:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-28 23:54:32,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:32,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:32,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-28 23:54:32,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-28 23:54:32,411 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:32,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash 499224870, now seen corresponding path program 1 times [2023-11-28 23:54:32,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:32,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799803988] [2023-11-28 23:54:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:32,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:32,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:32,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091043375] [2023-11-28 23:54:32,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:32,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:32,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:32,421 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:32,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 23:54:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:32,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:54:32,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:54:32,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:54:32,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799803988] [2023-11-28 23:54:32,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091043375] [2023-11-28 23:54:32,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091043375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:32,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:32,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:54:32,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354952908] [2023-11-28 23:54:32,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:32,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:54:32,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:32,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:54:32,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:54:32,513 INFO L87 Difference]: Start difference. First operand 230 states and 280 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:33,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:33,795 INFO L93 Difference]: Finished difference Result 236 states and 286 transitions. [2023-11-28 23:54:33,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:54:33,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2023-11-28 23:54:33,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:33,797 INFO L225 Difference]: With dead ends: 236 [2023-11-28 23:54:33,797 INFO L226 Difference]: Without dead ends: 235 [2023-11-28 23:54:33,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:54:33,797 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 22 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:33,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 177 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-28 23:54:33,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-28 23:54:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2023-11-28 23:54:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 195 states have (on average 1.3333333333333333) internal successors, (260), 218 states have internal predecessors, (260), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2023-11-28 23:54:33,809 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 47 [2023-11-28 23:54:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:33,810 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2023-11-28 23:54:33,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2023-11-28 23:54:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-28 23:54:33,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:33,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:33,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-28 23:54:34,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-28 23:54:34,011 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:34,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2063309992, now seen corresponding path program 1 times [2023-11-28 23:54:34,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269880588] [2023-11-28 23:54:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:34,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:34,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055353870] [2023-11-28 23:54:34,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:34,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:34,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:34,020 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:34,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 23:54:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:34,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 23:54:34,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:34,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:54:34,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:34,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269880588] [2023-11-28 23:54:34,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:34,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055353870] [2023-11-28 23:54:34,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055353870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:34,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:34,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 23:54:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550219057] [2023-11-28 23:54:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:34,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:54:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:54:34,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-28 23:54:34,939 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:36,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:36,000 INFO L93 Difference]: Finished difference Result 241 states and 290 transitions. [2023-11-28 23:54:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:54:36,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2023-11-28 23:54:36,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:36,002 INFO L225 Difference]: With dead ends: 241 [2023-11-28 23:54:36,002 INFO L226 Difference]: Without dead ends: 240 [2023-11-28 23:54:36,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:54:36,003 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 123 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:36,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 221 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:54:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-28 23:54:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2023-11-28 23:54:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 201 states have (on average 1.3233830845771144) internal successors, (266), 224 states have internal predecessors, (266), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:36,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 288 transitions. [2023-11-28 23:54:36,029 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 288 transitions. Word has length 47 [2023-11-28 23:54:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:36,029 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 288 transitions. [2023-11-28 23:54:36,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:36,030 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 288 transitions. [2023-11-28 23:54:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 23:54:36,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:36,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:36,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-28 23:54:36,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-28 23:54:36,236 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:36,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:36,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1703898071, now seen corresponding path program 1 times [2023-11-28 23:54:36,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:36,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225446291] [2023-11-28 23:54:36,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:36,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:36,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:36,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30519423] [2023-11-28 23:54:36,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:36,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:36,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:36,244 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:36,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 23:54:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:36,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:54:36,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-28 23:54:36,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:54:36,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225446291] [2023-11-28 23:54:36,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30519423] [2023-11-28 23:54:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30519423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:54:36,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:54:36,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:54:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989088922] [2023-11-28 23:54:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:54:36,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:54:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:54:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:54:36,325 INFO L87 Difference]: Start difference. First operand 238 states and 288 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:36,686 INFO L93 Difference]: Finished difference Result 241 states and 290 transitions. [2023-11-28 23:54:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:54:36,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2023-11-28 23:54:36,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:36,687 INFO L225 Difference]: With dead ends: 241 [2023-11-28 23:54:36,687 INFO L226 Difference]: Without dead ends: 240 [2023-11-28 23:54:36,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:54:36,688 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 20 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:36,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 162 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:54:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-28 23:54:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2023-11-28 23:54:36,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 202 states have (on average 1.316831683168317) internal successors, (266), 225 states have internal predecessors, (266), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 288 transitions. [2023-11-28 23:54:36,700 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 288 transitions. Word has length 48 [2023-11-28 23:54:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:36,701 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 288 transitions. [2023-11-28 23:54:36,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 23:54:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 288 transitions. [2023-11-28 23:54:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 23:54:36,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:36,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:36,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 23:54:36,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 23:54:36,902 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:36,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:36,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1526397755, now seen corresponding path program 1 times [2023-11-28 23:54:36,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:36,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444242684] [2023-11-28 23:54:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:36,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:36,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111317433] [2023-11-28 23:54:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:36,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:36,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:36,910 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:36,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 23:54:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:36,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 23:54:36,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:38,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:46,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444242684] [2023-11-28 23:54:46,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:46,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111317433] [2023-11-28 23:54:46,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111317433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:46,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:46,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-28 23:54:46,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209135302] [2023-11-28 23:54:46,403 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:46,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-28 23:54:46,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:46,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-28 23:54:46,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=111, Unknown=2, NotChecked=0, Total=156 [2023-11-28 23:54:46,404 INFO L87 Difference]: Start difference. First operand 239 states and 288 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:47,384 INFO L93 Difference]: Finished difference Result 249 states and 296 transitions. [2023-11-28 23:54:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:54:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2023-11-28 23:54:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:47,386 INFO L225 Difference]: With dead ends: 249 [2023-11-28 23:54:47,386 INFO L226 Difference]: Without dead ends: 248 [2023-11-28 23:54:47,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=88, Invalid=216, Unknown=2, NotChecked=0, Total=306 [2023-11-28 23:54:47,386 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 157 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:47,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 168 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:54:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-28 23:54:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 239. [2023-11-28 23:54:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 202 states have (on average 1.316831683168317) internal successors, (266), 225 states have internal predecessors, (266), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 288 transitions. [2023-11-28 23:54:47,399 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 288 transitions. Word has length 48 [2023-11-28 23:54:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:47,400 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 288 transitions. [2023-11-28 23:54:47,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 288 transitions. [2023-11-28 23:54:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-28 23:54:47,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:47,400 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-28 23:54:47,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 23:54:47,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 23:54:47,601 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:47,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:47,601 INFO L85 PathProgramCache]: Analyzing trace with hash 461899746, now seen corresponding path program 1 times [2023-11-28 23:54:47,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:47,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679571026] [2023-11-28 23:54:47,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:47,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:47,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:47,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20214027] [2023-11-28 23:54:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:47,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:47,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:47,609 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:47,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 23:54:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:47,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:54:47,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:47,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:48,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:48,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679571026] [2023-11-28 23:54:48,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:48,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20214027] [2023-11-28 23:54:48,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20214027] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:48,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:48,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-28 23:54:48,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201047156] [2023-11-28 23:54:48,794 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:48,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:54:48,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:48,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:54:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:54:48,794 INFO L87 Difference]: Start difference. First operand 239 states and 288 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:49,579 INFO L93 Difference]: Finished difference Result 247 states and 295 transitions. [2023-11-28 23:54:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 23:54:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2023-11-28 23:54:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:49,581 INFO L225 Difference]: With dead ends: 247 [2023-11-28 23:54:49,581 INFO L226 Difference]: Without dead ends: 233 [2023-11-28 23:54:49,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:54:49,582 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 118 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:49,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 219 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:54:49,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-28 23:54:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-11-28 23:54:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 196 states have (on average 1.3214285714285714) internal successors, (259), 219 states have internal predecessors, (259), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:49,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 281 transitions. [2023-11-28 23:54:49,601 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 281 transitions. Word has length 48 [2023-11-28 23:54:49,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:49,601 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 281 transitions. [2023-11-28 23:54:49,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:49,601 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 281 transitions. [2023-11-28 23:54:49,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-28 23:54:49,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:49,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-28 23:54:49,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-28 23:54:49,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 23:54:49,803 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:49,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:49,804 INFO L85 PathProgramCache]: Analyzing trace with hash 73690207, now seen corresponding path program 1 times [2023-11-28 23:54:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:49,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522685774] [2023-11-28 23:54:49,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:49,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:49,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:49,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549341615] [2023-11-28 23:54:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:49,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:49,828 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:49,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-28 23:54:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:49,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:54:49,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:50,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522685774] [2023-11-28 23:54:50,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549341615] [2023-11-28 23:54:50,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549341615] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:50,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-28 23:54:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810066860] [2023-11-28 23:54:50,998 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:50,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-28 23:54:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:50,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-28 23:54:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-11-28 23:54:50,999 INFO L87 Difference]: Start difference. First operand 233 states and 281 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:52,110 INFO L93 Difference]: Finished difference Result 236 states and 282 transitions. [2023-11-28 23:54:52,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:52,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2023-11-28 23:54:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:52,111 INFO L225 Difference]: With dead ends: 236 [2023-11-28 23:54:52,111 INFO L226 Difference]: Without dead ends: 222 [2023-11-28 23:54:52,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:54:52,112 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 263 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:52,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 184 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:54:52,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-28 23:54:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2023-11-28 23:54:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 184 states have (on average 1.3369565217391304) internal successors, (246), 207 states have internal predecessors, (246), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 23:54:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 268 transitions. [2023-11-28 23:54:52,128 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 268 transitions. Word has length 49 [2023-11-28 23:54:52,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:52,128 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 268 transitions. [2023-11-28 23:54:52,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 268 transitions. [2023-11-28 23:54:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-28 23:54:52,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:52,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:52,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-28 23:54:52,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:52,330 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:52,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash -355734865, now seen corresponding path program 1 times [2023-11-28 23:54:52,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238831824] [2023-11-28 23:54:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:52,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:52,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:52,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713105684] [2023-11-28 23:54:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:52,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:52,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:52,358 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:52,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-28 23:54:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:52,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 23:54:52,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:53,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238831824] [2023-11-28 23:54:54,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713105684] [2023-11-28 23:54:54,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713105684] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:54,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 23:54:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669333971] [2023-11-28 23:54:54,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:54,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:54:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:54,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:54:54,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:54:54,388 INFO L87 Difference]: Start difference. First operand 221 states and 268 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:55,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:55,964 INFO L93 Difference]: Finished difference Result 342 states and 439 transitions. [2023-11-28 23:54:55,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:55,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2023-11-28 23:54:55,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:55,966 INFO L225 Difference]: With dead ends: 342 [2023-11-28 23:54:55,966 INFO L226 Difference]: Without dead ends: 325 [2023-11-28 23:54:55,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:54:55,967 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 330 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:55,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 102 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 23:54:55,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-11-28 23:54:55,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 153. [2023-11-28 23:54:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 132 states have (on average 1.143939393939394) internal successors, (151), 142 states have internal predecessors, (151), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-28 23:54:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 167 transitions. [2023-11-28 23:54:55,981 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 167 transitions. Word has length 54 [2023-11-28 23:54:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:55,981 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 167 transitions. [2023-11-28 23:54:55,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-28 23:54:55,982 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 167 transitions. [2023-11-28 23:54:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-28 23:54:55,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:55,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:55,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-28 23:54:56,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:56,183 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:56,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:56,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1857121131, now seen corresponding path program 1 times [2023-11-28 23:54:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:56,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226279442] [2023-11-28 23:54:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:56,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:56,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838712091] [2023-11-28 23:54:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:56,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:56,192 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:56,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-28 23:54:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:56,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 23:54:56,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:56,689 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-28 23:54:56,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:54:57,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:54:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226279442] [2023-11-28 23:54:57,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:54:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838712091] [2023-11-28 23:54:57,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838712091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:54:57,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:54:57,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-28 23:54:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041996654] [2023-11-28 23:54:57,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:54:57,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:54:57,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:54:57,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:54:57,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:54:57,027 INFO L87 Difference]: Start difference. First operand 153 states and 167 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:54:58,074 INFO L93 Difference]: Finished difference Result 161 states and 174 transitions. [2023-11-28 23:54:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:54:58,075 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2023-11-28 23:54:58,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:54:58,076 INFO L225 Difference]: With dead ends: 161 [2023-11-28 23:54:58,076 INFO L226 Difference]: Without dead ends: 139 [2023-11-28 23:54:58,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2023-11-28 23:54:58,077 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 197 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:54:58,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 182 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:54:58,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-28 23:54:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-11-28 23:54:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.152542372881356) internal successors, (136), 128 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-28 23:54:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 152 transitions. [2023-11-28 23:54:58,086 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 152 transitions. Word has length 55 [2023-11-28 23:54:58,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:54:58,087 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 152 transitions. [2023-11-28 23:54:58,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-28 23:54:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 152 transitions. [2023-11-28 23:54:58,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-28 23:54:58,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:54:58,087 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:54:58,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-28 23:54:58,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:58,289 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:54:58,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:54:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1725613031, now seen corresponding path program 1 times [2023-11-28 23:54:58,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:54:58,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935985941] [2023-11-28 23:54:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:58,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:54:58,299 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:54:58,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126736356] [2023-11-28 23:54:58,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:54:58,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:54:58,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:54:58,301 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:54:58,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-28 23:54:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:54:58,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-28 23:54:58,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:54:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 23:54:58,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:55:02,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:02,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935985941] [2023-11-28 23:55:02,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:55:02,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126736356] [2023-11-28 23:55:02,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126736356] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:55:02,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:55:02,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-28 23:55:02,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873448486] [2023-11-28 23:55:02,890 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-28 23:55:02,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:55:02,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:02,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:55:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=186, Unknown=1, NotChecked=0, Total=240 [2023-11-28 23:55:02,892 INFO L87 Difference]: Start difference. First operand 139 states and 152 transitions. Second operand has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-28 23:55:03,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:03,764 INFO L93 Difference]: Finished difference Result 266 states and 294 transitions. [2023-11-28 23:55:03,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 23:55:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 68 [2023-11-28 23:55:03,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:03,766 INFO L225 Difference]: With dead ends: 266 [2023-11-28 23:55:03,766 INFO L226 Difference]: Without dead ends: 181 [2023-11-28 23:55:03,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=119, Invalid=386, Unknown=1, NotChecked=0, Total=506 [2023-11-28 23:55:03,767 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 184 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:03,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 212 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:55:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-28 23:55:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 171. [2023-11-28 23:55:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 149 states have (on average 1.1543624161073827) internal successors, (172), 159 states have internal predecessors, (172), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-28 23:55:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 190 transitions. [2023-11-28 23:55:03,778 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 190 transitions. Word has length 68 [2023-11-28 23:55:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:03,778 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 190 transitions. [2023-11-28 23:55:03,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-28 23:55:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 190 transitions. [2023-11-28 23:55:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-28 23:55:03,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:03,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:03,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-28 23:55:03,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:03,981 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:55:03,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:03,982 INFO L85 PathProgramCache]: Analyzing trace with hash 614152775, now seen corresponding path program 1 times [2023-11-28 23:55:03,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:03,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843269662] [2023-11-28 23:55:03,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:03,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:04,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:55:04,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966075081] [2023-11-28 23:55:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:04,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:04,009 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:55:04,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-28 23:55:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:04,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-28 23:55:04,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-28 23:55:04,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:55:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-28 23:55:04,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843269662] [2023-11-28 23:55:04,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:55:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966075081] [2023-11-28 23:55:04,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966075081] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-28 23:55:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:55:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 15 [2023-11-28 23:55:04,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865338711] [2023-11-28 23:55:04,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:04,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:55:04,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:04,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:55:04,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-28 23:55:04,677 INFO L87 Difference]: Start difference. First operand 171 states and 190 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-28 23:55:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:04,991 INFO L93 Difference]: Finished difference Result 192 states and 215 transitions. [2023-11-28 23:55:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:55:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 73 [2023-11-28 23:55:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:04,992 INFO L225 Difference]: With dead ends: 192 [2023-11-28 23:55:04,992 INFO L226 Difference]: Without dead ends: 66 [2023-11-28 23:55:04,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:55:04,993 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 98 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:04,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 120 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:55:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-28 23:55:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-28 23:55:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 58 states have (on average 1.0) internal successors, (58), 58 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-28 23:55:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2023-11-28 23:55:05,000 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 73 [2023-11-28 23:55:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:05,000 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2023-11-28 23:55:05,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-28 23:55:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2023-11-28 23:55:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-28 23:55:05,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:05,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:05,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-11-28 23:55:05,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:05,202 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-28 23:55:05,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1804651573, now seen corresponding path program 1 times [2023-11-28 23:55:05,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:05,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175424522] [2023-11-28 23:55:05,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:05,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:05,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:55:05,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443816700] [2023-11-28 23:55:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:05,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:05,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:05,233 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:55:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-28 23:55:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:05,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-28 23:55:05,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-28 23:55:05,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:55:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-28 23:55:12,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:12,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175424522] [2023-11-28 23:55:12,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-28 23:55:12,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443816700] [2023-11-28 23:55:12,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443816700] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:55:12,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:55:12,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2023-11-28 23:55:12,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430007834] [2023-11-28 23:55:12,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 23:55:12,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 23:55:12,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:12,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 23:55:12,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2023-11-28 23:55:12,148 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 26 states, 23 states have (on average 4.565217391304348) internal successors, (105), 22 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-28 23:55:12,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:12,746 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2023-11-28 23:55:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-28 23:55:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 4.565217391304348) internal successors, (105), 22 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 77 [2023-11-28 23:55:12,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:12,747 INFO L225 Difference]: With dead ends: 66 [2023-11-28 23:55:12,747 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 23:55:12,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=277, Invalid=983, Unknown=0, NotChecked=0, Total=1260 [2023-11-28 23:55:12,748 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 198 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:12,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 156 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:55:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 23:55:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 23:55:12,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-28 23:55:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 23:55:12,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2023-11-28 23:55:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:12,749 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 23:55:12,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 4.565217391304348) internal successors, (105), 22 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-28 23:55:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 23:55:12,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 23:55:12,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2023-11-28 23:55:12,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2023-11-28 23:55:12,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 42 remaining) [2023-11-28 23:55:12,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2023-11-28 23:55:12,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2023-11-28 23:55:12,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2023-11-28 23:55:12,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2023-11-28 23:55:12,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-28 23:55:12,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-28 23:55:12,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 23:55:20,376 WARN L293 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 179 DAG size of output: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-6(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L35-7(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,855 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L895 garLoopResultBuilder]: At program point L35-8(line 35) the Hoare annotation is: (let ((.cse4 (<= |ULTIMATE.start_main_~a~0#1| 1)) (.cse9 (not (= (mod (+ |ULTIMATE.start_main_~a~0#1| 1) 2) 0))) (.cse1 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse11 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse14 (= |ULTIMATE.start_main_~a~0#1| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse13 (= |ULTIMATE.start_main_~p~0#1| 4)) (.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse12 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse8 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse0 .cse1 .cse2 .cse3 .cse10 .cse4 .cse7 .cse8 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse5 .cse6 .cse12 .cse7 .cse8) (and .cse13 .cse0 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| 0) (<= 4 |ULTIMATE.start_main_~q~0#1|) .cse14 .cse8) (let ((.cse15 (+ |ULTIMATE.start_main_~b~0#1| 1))) (and (<= 1 |ULTIMATE.start_main_~p~0#1|) .cse0 .cse2 .cse3 .cse10 .cse11 (<= 1 (mod .cse15 2)) (<= 0 .cse15) (not .cse14) (= (mod |ULTIMATE.start_main_~a~0#1| 2) 0) .cse7 .cse8)) (and .cse13 (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse2 .cse3 (= |ULTIMATE.start_main_~a~0#1| 1) .cse12 .cse8))) [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point L35-9(lines 34 55) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,856 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,857 INFO L899 garLoopResultBuilder]: For program point L53-2(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L53-3(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L53-4(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L53-5(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L53-6(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L53-7(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-28 23:55:21,858 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 54) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 34 55) the Hoare annotation is: (let ((.cse18 (+ |ULTIMATE.start_main_~a~0#1| 1))) (let ((.cse1 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse13 (<= |ULTIMATE.start_main_~a~0#1| 1)) (.cse5 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse6 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse14 (mod .cse18 2)) (.cse15 (<= 0 .cse18)) (.cse10 (= |ULTIMATE.start_main_~p~0#1| 4)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse12 (<= |ULTIMATE.start_main_~b~0#1| 1)) (.cse4 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse11 (= |ULTIMATE.start_main_~a~0#1| 0)) (.cse8 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse9 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse0 .cse2 .cse3 (= |ULTIMATE.start_main_~b~0#1| 0) (= |ULTIMATE.start_main_~q~0#1| 4) .cse11 .cse9) (and (<= 0 |ULTIMATE.start_main_~b~0#1|) .cse0 .cse1 .cse2 .cse3 .cse12 .cse13 (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1| 1) |ULTIMATE.start_main_~q~0#1|) .cse9 (not (= .cse14 0)) .cse15) (and .cse0 .cse1 (= |ULTIMATE.start_main_~q~0#1| (* |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~p~0#1|)) .cse2 .cse3 .cse13 .cse5 .cse6 .cse9 (<= 1 .cse14) .cse15) (and .cse10 (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse2 .cse3 (= |ULTIMATE.start_main_~a~0#1| 1) .cse7 .cse9) (let ((.cse16 (+ |ULTIMATE.start_main_~b~0#1| 1)) (.cse17 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|))) (and (<= 1 |ULTIMATE.start_main_~p~0#1|) .cse0 .cse2 .cse3 .cse12 .cse4 (<= 1 (mod .cse16 2)) (<= 0 .cse16) (= |ULTIMATE.start_main_~q~0#1| .cse17) (not .cse11) (= (mod |ULTIMATE.start_main_~a~0#1| 2) 0) .cse8 .cse9 (<= .cse17 9223372036854775807)))))) [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-28 23:55:21,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 54) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-28 23:55:21,861 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-28 23:55:21,862 INFO L895 garLoopResultBuilder]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~b~0#1|)) (.cse7 (<= 1 |ULTIMATE.start_main_~p~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse5 (<= 0 |ULTIMATE.start_main_~a~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~x~0#1| 2))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~p~0#1| 1) .cse2 .cse3 .cse4 (<= |ULTIMATE.start_main_~b~0#1| 2) .cse5 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~b~0#1| 0) (<= (+ |ULTIMATE.start_main_~p~0#1| (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~p~0#1|)) |ULTIMATE.start_main_~q~0#1|) .cse5 .cse6) (and .cse1 .cse3 .cse4 (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 2147483647) .cse5 (<= |ULTIMATE.start_main_~y~0#1| 2147483647) .cse6) (and .cse0 .cse7 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~b~0#1| 1) .cse4 (not (= |ULTIMATE.start_main_~a~0#1| 0)) .cse5 .cse6))) [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point L57-2(line 57) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-28 23:55:21,862 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point L49-2(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point L49-3(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-28 23:55:21,863 INFO L902 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: true [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point L58-2(line 58) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 55) no Hoare annotation was computed. [2023-11-28 23:55:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,865 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-11-28 23:55:21,865 INFO L895 garLoopResultBuilder]: At program point L26-1(line 26) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2)) [2023-11-28 23:55:21,865 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,865 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-28 23:55:21,865 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-28 23:55:21,865 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2023-11-28 23:55:21,865 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-28 23:55:21,866 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-11-28 23:55:21,866 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-28 23:55:21,867 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-28 23:55:21,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:21,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:55:21,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:55:21 BoogieIcfgContainer [2023-11-28 23:55:21,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:55:21,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:55:21,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:55:21,891 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:55:21,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:51:59" (3/4) ... [2023-11-28 23:55:21,894 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 23:55:21,897 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-28 23:55:21,897 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-28 23:55:21,903 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-28 23:55:21,904 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-28 23:55:21,904 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 23:55:21,904 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 23:55:21,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 23:55:21,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 23:55:21,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:55:22,000 INFO L158 Benchmark]: Toolchain (without parser) took 203647.42ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 119.0MB in the beginning and 84.3MB in the end (delta: 34.7MB). Peak memory consumption was 105.7MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,000 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:22,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.54ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 107.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.87ms. Allocated memory is still 148.9MB. Free memory was 107.4MB in the beginning and 105.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,001 INFO L158 Benchmark]: Boogie Preprocessor took 39.86ms. Allocated memory is still 148.9MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,001 INFO L158 Benchmark]: RCFGBuilder took 460.77ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 84.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,002 INFO L158 Benchmark]: TraceAbstraction took 202748.95ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 83.5MB in the beginning and 89.6MB in the end (delta: -6.1MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,002 INFO L158 Benchmark]: Witness Printer took 108.40ms. Allocated memory is still 218.1MB. Free memory was 89.6MB in the beginning and 84.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 23:55:22,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.54ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 107.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.87ms. Allocated memory is still 148.9MB. Free memory was 107.4MB in the beginning and 105.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.86ms. Allocated memory is still 148.9MB. Free memory was 105.9MB in the beginning and 103.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.77ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 84.3MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 202748.95ms. Allocated memory was 148.9MB in the beginning and 218.1MB in the end (delta: 69.2MB). Free memory was 83.5MB in the beginning and 89.6MB in the end (delta: -6.1MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. * Witness Printer took 108.40ms. Allocated memory is still 218.1MB. Free memory was 89.6MB in the beginning and 84.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 108 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 202.7s, OverallIterations: 35, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 6429 SdHoareTripleChecker+Valid, 26.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6383 mSDsluCounter, 6021 SdHoareTripleChecker+Invalid, 25.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4152 mSDsCounter, 493 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11331 IncrementalHoareTripleChecker+Invalid, 11825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 493 mSolverCounterUnsat, 1869 mSDtfsCounter, 11331 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2068 GetRequests, 1642 SyntacticMatches, 7 SemanticMatches, 419 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 92.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=626occurred in iteration=21, InterpolantAutomatonStates: 283, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 35 MinimizatonAttempts, 1570 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 97 PreInvPairs, 127 NumberOfFragments, 582 HoareAnnotationTreeSize, 97 FomulaSimplifications, 1176200 FormulaSimplificationTreeSizeReduction, 7.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2247 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 152.6s InterpolantComputationTime, 1502 NumberOfCodeBlocks, 1502 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1639 ConstructedInterpolants, 0 QuantifiedInterpolants, 14226 SizeOfPredicates, 90 NumberOfNonLiveVariables, 3297 ConjunctsInSsa, 470 ConjunctsInUnsatCore, 38 InterpolantComputations, 17 PerfectInterpolantSequences, 450/632 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((((((((0 <= x) && (p == 1)) && (y <= 2)) && (1 <= y)) && (a <= 2)) && (b <= 2)) && (1 <= b)) && (q == 0)) && (0 <= a)) && (x <= 2)) || ((((((((p == 4) && (0 <= x)) && (y <= 2)) && (1 <= y)) && (b == 0)) && (q == 4)) && (a == 0)) && (x <= 2))) || (((((((((((0 <= b) && (0 <= x)) && (p == 1)) && (y <= 2)) && (1 <= y)) && (b <= 1)) && (a <= 1)) && (((a + b) + 1) == q)) && (x <= 2)) && !((((a + 1) % 2) == 0))) && (0 <= (a + 1)))) || (((((((((((0 <= x) && (p == 1)) && (q == (b * p))) && (y <= 2)) && (1 <= y)) && (a <= 1)) && (b <= 2)) && (1 <= b)) && (x <= 2)) && (1 <= ((a + 1) % 2))) && (0 <= (a + 1)))) || ((((((((p == 4) && (b == 1)) && (0 <= x)) && (y <= 2)) && (1 <= y)) && (a == 1)) && (q == 0)) && (x <= 2))) || ((((((((((((((1 <= p) && (0 <= x)) && (y <= 2)) && (1 <= y)) && (b <= 1)) && (a <= 2)) && (1 <= ((b + 1) % 2))) && (0 <= (b + 1))) && (q == (a * p))) && !((a == 0))) && ((a % 2) == 0)) && (0 <= a)) && (x <= 2)) && ((a * p) <= 9223372036854775807))) RESULT: Ultimate proved your program to be correct! [2023-11-28 23:55:22,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f212f24c-153d-43fb-8747-28a1e3e300f3/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE