./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu --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 f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:40,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:40,452 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:57:40,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:40,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:40,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:40,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:40,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:40,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:40,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:40,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:40,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:40,517 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:40,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:40,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:40,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:40,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:40,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:40,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:40,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:40,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:40,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:40,524 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:57:40,525 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:40,525 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:40,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:40,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:40,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:40,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:40,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:40,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:40,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:40,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:40,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:40,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:40,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:40,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:40,532 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:40,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:40,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:40,532 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:40,533 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_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 [2023-11-19 07:57:40,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:40,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:40,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:40,886 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:40,887 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:40,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2023-11-19 07:57:44,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:44,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:44,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2023-11-19 07:57:44,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/data/463660e05/cd63111e92fe4f6a9a76693da439b572/FLAG5440f40e0 [2023-11-19 07:57:44,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/data/463660e05/cd63111e92fe4f6a9a76693da439b572 [2023-11-19 07:57:44,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:44,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:44,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:44,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:44,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:44,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb32dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44, skipping insertion in model container [2023-11-19 07:57:44,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:44,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:44,541 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:44,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:44,586 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:44,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44 WrapperNode [2023-11-19 07:57:44,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:44,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:44,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:44,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:44,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,677 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-11-19 07:57:44,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:44,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:44,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:44,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:44,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:44,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:44,723 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:44,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:44,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (1/1) ... [2023-11-19 07:57:44,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:44,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:44,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:44,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:44,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:44,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:44,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:57:44,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:57:44,897 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:44,901 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:45,850 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:45,863 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:45,863 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:57:45,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:45 BoogieIcfgContainer [2023-11-19 07:57:45,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:45,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:45,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:45,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:45,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:44" (1/3) ... [2023-11-19 07:57:45,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fdb147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:45, skipping insertion in model container [2023-11-19 07:57:45,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:44" (2/3) ... [2023-11-19 07:57:45,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fdb147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:45, skipping insertion in model container [2023-11-19 07:57:45,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:45" (3/3) ... [2023-11-19 07:57:45,881 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_unwindbound2.c [2023-11-19 07:57:45,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:45,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 140 error locations. [2023-11-19 07:57:46,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:46,034 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;@7dc5ad57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:46,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2023-11-19 07:57:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 306 states, 153 states have (on average 1.9411764705882353) internal successors, (297), 293 states have internal predecessors, (297), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:57:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:57:46,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:46,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:57:46,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:46,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:46,054 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2023-11-19 07:57:46,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:46,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76620773] [2023-11-19 07:57:46,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:46,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:46,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:46,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76620773] [2023-11-19 07:57:46,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76620773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:46,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:46,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:46,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278622741] [2023-11-19 07:57:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:46,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:46,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:46,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:46,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:46,333 INFO L87 Difference]: Start difference. First operand has 306 states, 153 states have (on average 1.9411764705882353) internal successors, (297), 293 states have internal predecessors, (297), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:57:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:46,447 INFO L93 Difference]: Finished difference Result 606 states and 654 transitions. [2023-11-19 07:57:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:46,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:57:46,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:46,462 INFO L225 Difference]: With dead ends: 606 [2023-11-19 07:57:46,462 INFO L226 Difference]: Without dead ends: 296 [2023-11-19 07:57:46,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:46,475 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 4 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:46,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 909 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:57:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-19 07:57:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-11-19 07:57:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 152 states have (on average 1.881578947368421) internal successors, (286), 284 states have internal predecessors, (286), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:57:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 306 transitions. [2023-11-19 07:57:46,546 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 306 transitions. Word has length 4 [2023-11-19 07:57:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:46,547 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 306 transitions. [2023-11-19 07:57:46,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 07:57:46,548 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 306 transitions. [2023-11-19 07:57:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:57:46,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:46,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:46,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:46,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:46,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:46,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812487, now seen corresponding path program 1 times [2023-11-19 07:57:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:46,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729124313] [2023-11-19 07:57:46,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:46,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:46,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:46,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729124313] [2023-11-19 07:57:46,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729124313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:46,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:46,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:46,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171548365] [2023-11-19 07:57:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:46,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:46,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:46,615 INFO L87 Difference]: Start difference. First operand 296 states and 306 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 07:57:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:46,808 INFO L93 Difference]: Finished difference Result 564 states and 584 transitions. [2023-11-19 07:57:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:57:46,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:46,818 INFO L225 Difference]: With dead ends: 564 [2023-11-19 07:57:46,819 INFO L226 Difference]: Without dead ends: 544 [2023-11-19 07:57:46,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:46,826 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 237 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:46,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 613 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:46,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-19 07:57:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 354. [2023-11-19 07:57:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 205 states have (on average 1.7902439024390244) internal successors, (367), 337 states have internal predecessors, (367), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 07:57:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 397 transitions. [2023-11-19 07:57:46,872 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 397 transitions. Word has length 7 [2023-11-19 07:57:46,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:46,872 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 397 transitions. [2023-11-19 07:57:46,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-19 07:57:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 397 transitions. [2023-11-19 07:57:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 07:57:46,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:46,876 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] [2023-11-19 07:57:46,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:46,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:46,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:46,877 INFO L85 PathProgramCache]: Analyzing trace with hash -133892695, now seen corresponding path program 1 times [2023-11-19 07:57:46,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:46,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659414108] [2023-11-19 07:57:46,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:46,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:46,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:46,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145115341] [2023-11-19 07:57:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:46,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:46,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:46,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:46,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:47,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:47,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:47,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:47,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659414108] [2023-11-19 07:57:47,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145115341] [2023-11-19 07:57:47,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145115341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:47,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:47,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:47,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235504828] [2023-11-19 07:57:47,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:47,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:47,306 INFO L87 Difference]: Start difference. First operand 354 states and 397 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-19 07:57:48,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:48,104 INFO L93 Difference]: Finished difference Result 552 states and 572 transitions. [2023-11-19 07:57:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:48,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 40 [2023-11-19 07:57:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:48,111 INFO L225 Difference]: With dead ends: 552 [2023-11-19 07:57:48,111 INFO L226 Difference]: Without dead ends: 497 [2023-11-19 07:57:48,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,113 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 172 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:48,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 412 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:57:48,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-19 07:57:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 439. [2023-11-19 07:57:48,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6491228070175439) internal successors, (470), 417 states have internal predecessors, (470), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 510 transitions. [2023-11-19 07:57:48,169 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 510 transitions. Word has length 40 [2023-11-19 07:57:48,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:48,169 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 510 transitions. [2023-11-19 07:57:48,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-19 07:57:48,170 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 510 transitions. [2023-11-19 07:57:48,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 07:57:48,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,172 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] [2023-11-19 07:57:48,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:57:48,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:48,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:48,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 178141835, now seen corresponding path program 1 times [2023-11-19 07:57:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59804028] [2023-11-19 07:57:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:48,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:48,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625838041] [2023-11-19 07:57:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:48,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:48,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:48,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:57:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:48,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:48,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:48,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:48,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59804028] [2023-11-19 07:57:48,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:48,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625838041] [2023-11-19 07:57:48,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625838041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:48,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:48,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:48,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954171403] [2023-11-19 07:57:48,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:48,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:48,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:48,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:48,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:48,602 INFO L87 Difference]: Start difference. First operand 439 states and 510 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-19 07:57:49,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:49,150 INFO L93 Difference]: Finished difference Result 492 states and 517 transitions. [2023-11-19 07:57:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:49,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 42 [2023-11-19 07:57:49,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:49,155 INFO L225 Difference]: With dead ends: 492 [2023-11-19 07:57:49,156 INFO L226 Difference]: Without dead ends: 487 [2023-11-19 07:57:49,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,157 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 160 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:49,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 507 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:49,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-19 07:57:49,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 439. [2023-11-19 07:57:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.631578947368421) internal successors, (465), 417 states have internal predecessors, (465), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 505 transitions. [2023-11-19 07:57:49,193 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 505 transitions. Word has length 42 [2023-11-19 07:57:49,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:49,194 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 505 transitions. [2023-11-19 07:57:49,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-19 07:57:49,197 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 505 transitions. [2023-11-19 07:57:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:57:49,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:49,202 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] [2023-11-19 07:57:49,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:49,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,424 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:49,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1227429682, now seen corresponding path program 1 times [2023-11-19 07:57:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:49,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764606590] [2023-11-19 07:57:49,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:49,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:49,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454997724] [2023-11-19 07:57:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:49,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:49,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:49,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:49,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:57:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:49,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:49,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:49,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:49,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764606590] [2023-11-19 07:57:49,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:49,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454997724] [2023-11-19 07:57:49,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454997724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:49,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:49,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62176202] [2023-11-19 07:57:49,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:49,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:49,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:49,568 INFO L87 Difference]: Start difference. First operand 439 states and 505 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-19 07:57:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,466 INFO L93 Difference]: Finished difference Result 492 states and 512 transitions. [2023-11-19 07:57:50,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:50,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 43 [2023-11-19 07:57:50,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,470 INFO L225 Difference]: With dead ends: 492 [2023-11-19 07:57:50,470 INFO L226 Difference]: Without dead ends: 487 [2023-11-19 07:57:50,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:50,472 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 157 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 524 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:57:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-19 07:57:50,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 439. [2023-11-19 07:57:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6140350877192982) internal successors, (460), 417 states have internal predecessors, (460), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 500 transitions. [2023-11-19 07:57:50,499 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 500 transitions. Word has length 43 [2023-11-19 07:57:50,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,507 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 500 transitions. [2023-11-19 07:57:50,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-19 07:57:50,507 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 500 transitions. [2023-11-19 07:57:50,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 07:57:50,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,508 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] [2023-11-19 07:57:50,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:50,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,720 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:50,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,721 INFO L85 PathProgramCache]: Analyzing trace with hash -604385427, now seen corresponding path program 1 times [2023-11-19 07:57:50,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:50,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055281268] [2023-11-19 07:57:50,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:50,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:50,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186255223] [2023-11-19 07:57:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:50,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:50,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:50,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:57:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:50,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:50,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:50,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:50,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:50,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055281268] [2023-11-19 07:57:50,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:50,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186255223] [2023-11-19 07:57:50,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186255223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:50,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:50,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:50,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266705056] [2023-11-19 07:57:50,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:50,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:50,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:50,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:50,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:50,949 INFO L87 Difference]: Start difference. First operand 439 states and 500 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-19 07:57:52,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:52,041 INFO L93 Difference]: Finished difference Result 487 states and 507 transitions. [2023-11-19 07:57:52,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:52,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 44 [2023-11-19 07:57:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:52,045 INFO L225 Difference]: With dead ends: 487 [2023-11-19 07:57:52,045 INFO L226 Difference]: Without dead ends: 485 [2023-11-19 07:57:52,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:52,047 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 330 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:52,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 427 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:57:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-11-19 07:57:52,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 439. [2023-11-19 07:57:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6070175438596492) internal successors, (458), 417 states have internal predecessors, (458), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 498 transitions. [2023-11-19 07:57:52,071 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 498 transitions. Word has length 44 [2023-11-19 07:57:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:52,071 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 498 transitions. [2023-11-19 07:57:52,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-19 07:57:52,072 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 498 transitions. [2023-11-19 07:57:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:57:52,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:52,073 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] [2023-11-19 07:57:52,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:52,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:52,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:52,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1556078956, now seen corresponding path program 1 times [2023-11-19 07:57:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:52,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669641469] [2023-11-19 07:57:52,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:52,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:52,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025445066] [2023-11-19 07:57:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:52,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:52,304 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:52,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:57:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:52,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:52,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:52,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:52,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669641469] [2023-11-19 07:57:52,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:52,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025445066] [2023-11-19 07:57:52,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025445066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:52,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:52,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:52,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728978669] [2023-11-19 07:57:52,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:52,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:52,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:52,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:52,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:52,484 INFO L87 Difference]: Start difference. First operand 439 states and 498 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2023-11-19 07:57:54,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:54,659 INFO L93 Difference]: Finished difference Result 485 states and 505 transitions. [2023-11-19 07:57:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:54,659 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), 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 45 [2023-11-19 07:57:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:54,663 INFO L225 Difference]: With dead ends: 485 [2023-11-19 07:57:54,663 INFO L226 Difference]: Without dead ends: 483 [2023-11-19 07:57:54,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:54,664 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 174 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:54,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 494 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:57:54,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-19 07:57:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 439. [2023-11-19 07:57:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 285 states have (on average 1.6) internal successors, (456), 417 states have internal predecessors, (456), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 496 transitions. [2023-11-19 07:57:54,685 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 496 transitions. Word has length 45 [2023-11-19 07:57:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:54,685 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 496 transitions. [2023-11-19 07:57:54,685 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), 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) [2023-11-19 07:57:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 496 transitions. [2023-11-19 07:57:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:57:54,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:54,687 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] [2023-11-19 07:57:54,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:54,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 07:57:54,912 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:54,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1566054095, now seen corresponding path program 1 times [2023-11-19 07:57:54,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904558680] [2023-11-19 07:57:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:54,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:54,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803129845] [2023-11-19 07:57:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:54,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:54,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:54,930 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:54,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:57:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:54,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:57:54,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:55,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:55,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:55,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904558680] [2023-11-19 07:57:55,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803129845] [2023-11-19 07:57:55,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803129845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:55,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:55,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:55,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608596996] [2023-11-19 07:57:55,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:55,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:55,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:55,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:55,225 INFO L87 Difference]: Start difference. First operand 439 states and 496 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:57:55,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:55,745 INFO L93 Difference]: Finished difference Result 483 states and 503 transitions. [2023-11-19 07:57:55,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:55,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 48 [2023-11-19 07:57:55,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:55,749 INFO L225 Difference]: With dead ends: 483 [2023-11-19 07:57:55,749 INFO L226 Difference]: Without dead ends: 469 [2023-11-19 07:57:55,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:55,750 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 134 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:55,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 279 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:57:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-19 07:57:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 442. [2023-11-19 07:57:55,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 288 states have (on average 1.5555555555555556) internal successors, (448), 420 states have internal predecessors, (448), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 488 transitions. [2023-11-19 07:57:55,769 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 488 transitions. Word has length 48 [2023-11-19 07:57:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:55,769 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 488 transitions. [2023-11-19 07:57:55,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:57:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 488 transitions. [2023-11-19 07:57:55,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:57:55,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:55,771 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, 1] [2023-11-19 07:57:55,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:57:55,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:57:55,990 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:55,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1303036584, now seen corresponding path program 1 times [2023-11-19 07:57:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:55,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182757086] [2023-11-19 07:57:55,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:56,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:56,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832835861] [2023-11-19 07:57:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:56,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:56,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:56,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:56,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:57:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:56,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:57:56,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:56,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182757086] [2023-11-19 07:57:56,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832835861] [2023-11-19 07:57:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832835861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:56,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:56,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:56,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041090598] [2023-11-19 07:57:56,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:56,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:56,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:56,219 INFO L87 Difference]: Start difference. First operand 442 states and 488 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2023-11-19 07:57:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:57,447 INFO L93 Difference]: Finished difference Result 469 states and 489 transitions. [2023-11-19 07:57:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:57,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 49 [2023-11-19 07:57:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:57,451 INFO L225 Difference]: With dead ends: 469 [2023-11-19 07:57:57,451 INFO L226 Difference]: Without dead ends: 466 [2023-11-19 07:57:57,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:57,452 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 285 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:57,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 359 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 07:57:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-19 07:57:57,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 442. [2023-11-19 07:57:57,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 288 states have (on average 1.5451388888888888) internal successors, (445), 420 states have internal predecessors, (445), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:57:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 485 transitions. [2023-11-19 07:57:57,472 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 485 transitions. Word has length 49 [2023-11-19 07:57:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:57,474 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 485 transitions. [2023-11-19 07:57:57,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2023-11-19 07:57:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 485 transitions. [2023-11-19 07:57:57,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:57:57,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:57,477 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, 1, 1, 1, 1, 1] [2023-11-19 07:57:57,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:57,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:57,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:57,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:57,692 INFO L85 PathProgramCache]: Analyzing trace with hash -528933860, now seen corresponding path program 1 times [2023-11-19 07:57:57,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:57,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005790406] [2023-11-19 07:57:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:57,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:57,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:57,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523507182] [2023-11-19 07:57:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:57,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:57,713 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:57,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:57:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:57,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:57,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 07:57:58,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:58,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005790406] [2023-11-19 07:57:58,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:58,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523507182] [2023-11-19 07:57:58,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523507182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:58,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:58,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:58,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18959919] [2023-11-19 07:57:58,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:58,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:58,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:58,082 INFO L87 Difference]: Start difference. First operand 442 states and 485 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-19 07:57:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:58,876 INFO L93 Difference]: Finished difference Result 466 states and 486 transitions. [2023-11-19 07:57:58,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:58,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 53 [2023-11-19 07:57:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:58,880 INFO L225 Difference]: With dead ends: 466 [2023-11-19 07:57:58,880 INFO L226 Difference]: Without dead ends: 432 [2023-11-19 07:57:58,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:58,881 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 269 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:58,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 361 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:57:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-19 07:57:58,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 413. [2023-11-19 07:57:58,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 393 states have internal predecessors, (414), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:57:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 450 transitions. [2023-11-19 07:57:58,898 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 450 transitions. Word has length 53 [2023-11-19 07:57:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:58,898 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 450 transitions. [2023-11-19 07:57:58,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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) [2023-11-19 07:57:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 450 transitions. [2023-11-19 07:57:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 07:57:58,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:58,901 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:58,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:59,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:59,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:57:59,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1162037022, now seen corresponding path program 1 times [2023-11-19 07:57:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:59,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634156587] [2023-11-19 07:57:59,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:59,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:57:59,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303037801] [2023-11-19 07:57:59,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:59,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:59,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:59,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:59,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:57:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:59,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:59,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:57:59,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:59,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634156587] [2023-11-19 07:57:59,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:57:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303037801] [2023-11-19 07:57:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303037801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:59,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:59,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:59,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406206974] [2023-11-19 07:57:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:59,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:59,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:59,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:59,290 INFO L87 Difference]: Start difference. First operand 413 states and 450 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:58:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:00,378 INFO L93 Difference]: Finished difference Result 413 states and 450 transitions. [2023-11-19 07:58:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2023-11-19 07:58:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:00,381 INFO L225 Difference]: With dead ends: 413 [2023-11-19 07:58:00,381 INFO L226 Difference]: Without dead ends: 409 [2023-11-19 07:58:00,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:00,383 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 247 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:00,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:58:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-19 07:58:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-11-19 07:58:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 261 states have (on average 1.5708812260536398) internal successors, (410), 389 states have internal predecessors, (410), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:58:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 446 transitions. [2023-11-19 07:58:00,399 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 446 transitions. Word has length 85 [2023-11-19 07:58:00,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:00,399 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 446 transitions. [2023-11-19 07:58:00,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:58:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 446 transitions. [2023-11-19 07:58:00,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 07:58:00,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:00,401 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:00,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:00,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:00,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:00,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:00,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1663409478, now seen corresponding path program 1 times [2023-11-19 07:58:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:00,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638096401] [2023-11-19 07:58:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:00,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:00,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796000561] [2023-11-19 07:58:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:00,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:00,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:00,650 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:00,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:58:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:00,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:00,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:00,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638096401] [2023-11-19 07:58:00,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796000561] [2023-11-19 07:58:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796000561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:00,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:00,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193371151] [2023-11-19 07:58:00,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:00,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:00,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:00,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:00,762 INFO L87 Difference]: Start difference. First operand 409 states and 446 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:58:01,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:01,753 INFO L93 Difference]: Finished difference Result 466 states and 505 transitions. [2023-11-19 07:58:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 86 [2023-11-19 07:58:01,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:01,756 INFO L225 Difference]: With dead ends: 466 [2023-11-19 07:58:01,757 INFO L226 Difference]: Without dead ends: 463 [2023-11-19 07:58:01,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:01,758 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 216 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:01,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 260 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:58:01,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-19 07:58:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 437. [2023-11-19 07:58:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 289 states have (on average 1.5986159169550174) internal successors, (462), 415 states have internal predecessors, (462), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:58:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 502 transitions. [2023-11-19 07:58:01,775 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 502 transitions. Word has length 86 [2023-11-19 07:58:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:01,776 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 502 transitions. [2023-11-19 07:58:01,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:58:01,776 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 502 transitions. [2023-11-19 07:58:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:58:01,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:01,778 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:01,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:01,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:01,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:01,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:01,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1018158765, now seen corresponding path program 1 times [2023-11-19 07:58:01,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:01,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331526274] [2023-11-19 07:58:01,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:01,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:02,032 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:02,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326942738] [2023-11-19 07:58:02,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:02,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:02,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:02,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:58:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:02,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:02,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:02,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:02,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331526274] [2023-11-19 07:58:02,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:02,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326942738] [2023-11-19 07:58:02,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326942738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:02,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:02,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:02,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947616745] [2023-11-19 07:58:02,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:02,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:02,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:02,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:02,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:02,246 INFO L87 Difference]: Start difference. First operand 437 states and 502 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:02,539 INFO L93 Difference]: Finished difference Result 437 states and 502 transitions. [2023-11-19 07:58:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 88 [2023-11-19 07:58:02,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:02,544 INFO L225 Difference]: With dead ends: 437 [2023-11-19 07:58:02,544 INFO L226 Difference]: Without dead ends: 435 [2023-11-19 07:58:02,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:02,545 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 214 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:02,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 268 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:58:02,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-19 07:58:02,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2023-11-19 07:58:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 289 states have (on average 1.5778546712802768) internal successors, (456), 413 states have internal predecessors, (456), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:58:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 496 transitions. [2023-11-19 07:58:02,581 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 496 transitions. Word has length 88 [2023-11-19 07:58:02,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:02,582 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 496 transitions. [2023-11-19 07:58:02,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:02,582 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 496 transitions. [2023-11-19 07:58:02,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:58:02,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:02,584 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:02,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:02,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:02,804 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:02,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1498150823, now seen corresponding path program 1 times [2023-11-19 07:58:02,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:02,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033599447] [2023-11-19 07:58:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:02,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:02,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:02,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564524141] [2023-11-19 07:58:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:02,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:02,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:02,827 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:02,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:58:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:02,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:02,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:02,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:02,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033599447] [2023-11-19 07:58:02,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:02,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564524141] [2023-11-19 07:58:02,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564524141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:02,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:02,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787037490] [2023-11-19 07:58:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:02,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:02,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:02,987 INFO L87 Difference]: Start difference. First operand 435 states and 496 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:58:03,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:03,790 INFO L93 Difference]: Finished difference Result 452 states and 496 transitions. [2023-11-19 07:58:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:03,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2023-11-19 07:58:03,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:03,794 INFO L225 Difference]: With dead ends: 452 [2023-11-19 07:58:03,795 INFO L226 Difference]: Without dead ends: 450 [2023-11-19 07:58:03,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:03,797 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 138 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:03,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 750 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:58:03,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2023-11-19 07:58:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 435. [2023-11-19 07:58:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 289 states have (on average 1.5709342560553634) internal successors, (454), 413 states have internal predecessors, (454), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:58:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 494 transitions. [2023-11-19 07:58:03,828 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 494 transitions. Word has length 89 [2023-11-19 07:58:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:03,829 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 494 transitions. [2023-11-19 07:58:03,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-19 07:58:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 494 transitions. [2023-11-19 07:58:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:58:03,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:03,831 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:03,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:04,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:58:04,053 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:04,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 808675432, now seen corresponding path program 1 times [2023-11-19 07:58:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:04,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163718045] [2023-11-19 07:58:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:04,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:04,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284056641] [2023-11-19 07:58:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:04,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:04,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:04,083 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:04,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:58:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:04,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:04,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:04,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:04,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:04,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163718045] [2023-11-19 07:58:04,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:04,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284056641] [2023-11-19 07:58:04,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284056641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:04,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:04,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:04,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296599250] [2023-11-19 07:58:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:04,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:04,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:04,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:04,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:04,290 INFO L87 Difference]: Start difference. First operand 435 states and 494 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:04,331 INFO L93 Difference]: Finished difference Result 435 states and 494 transitions. [2023-11-19 07:58:04,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:04,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 88 [2023-11-19 07:58:04,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:04,335 INFO L225 Difference]: With dead ends: 435 [2023-11-19 07:58:04,335 INFO L226 Difference]: Without dead ends: 434 [2023-11-19 07:58:04,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:04,338 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 225 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:04,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 859 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-19 07:58:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2023-11-19 07:58:04,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 289 states have (on average 1.5674740484429066) internal successors, (453), 412 states have internal predecessors, (453), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:58:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 493 transitions. [2023-11-19 07:58:04,359 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 493 transitions. Word has length 88 [2023-11-19 07:58:04,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:04,360 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 493 transitions. [2023-11-19 07:58:04,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 493 transitions. [2023-11-19 07:58:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:58:04,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:04,362 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:04,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:04,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:58:04,583 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:04,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash -801964561, now seen corresponding path program 1 times [2023-11-19 07:58:04,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:04,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477216190] [2023-11-19 07:58:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:04,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:04,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092391544] [2023-11-19 07:58:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:04,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:04,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:04,612 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:04,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:58:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:04,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:04,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:04,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:04,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:04,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477216190] [2023-11-19 07:58:04,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092391544] [2023-11-19 07:58:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092391544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:04,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:04,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539265753] [2023-11-19 07:58:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:04,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:04,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:04,769 INFO L87 Difference]: Start difference. First operand 434 states and 493 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:05,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:05,073 INFO L93 Difference]: Finished difference Result 449 states and 493 transitions. [2023-11-19 07:58:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:05,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 90 [2023-11-19 07:58:05,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:05,077 INFO L225 Difference]: With dead ends: 449 [2023-11-19 07:58:05,077 INFO L226 Difference]: Without dead ends: 441 [2023-11-19 07:58:05,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:05,078 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 60 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:05,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 477 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:58:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-19 07:58:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 434. [2023-11-19 07:58:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 289 states have (on average 1.5397923875432526) internal successors, (445), 412 states have internal predecessors, (445), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-19 07:58:05,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 485 transitions. [2023-11-19 07:58:05,098 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 485 transitions. Word has length 90 [2023-11-19 07:58:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:05,098 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 485 transitions. [2023-11-19 07:58:05,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 07:58:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 485 transitions. [2023-11-19 07:58:05,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:58:05,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:05,100 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:05,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:05,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:58:05,321 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:05,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:05,322 INFO L85 PathProgramCache]: Analyzing trace with hash -700865343, now seen corresponding path program 1 times [2023-11-19 07:58:05,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:05,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025197670] [2023-11-19 07:58:05,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:05,368 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:05,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356563019] [2023-11-19 07:58:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:05,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:05,370 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:05,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:58:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:05,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:05,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:05,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:05,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:05,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025197670] [2023-11-19 07:58:05,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:05,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356563019] [2023-11-19 07:58:05,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356563019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:05,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:05,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:05,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262975507] [2023-11-19 07:58:05,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:05,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:05,578 INFO L87 Difference]: Start difference. First operand 434 states and 485 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:05,683 INFO L93 Difference]: Finished difference Result 573 states and 601 transitions. [2023-11-19 07:58:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2023-11-19 07:58:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:05,687 INFO L225 Difference]: With dead ends: 573 [2023-11-19 07:58:05,687 INFO L226 Difference]: Without dead ends: 572 [2023-11-19 07:58:05,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:58:05,689 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 221 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:05,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1503 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:05,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-11-19 07:58:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 480. [2023-11-19 07:58:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 332 states have (on average 1.5813253012048192) internal successors, (525), 455 states have internal predecessors, (525), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:58:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 571 transitions. [2023-11-19 07:58:05,713 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 571 transitions. Word has length 89 [2023-11-19 07:58:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:05,713 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 571 transitions. [2023-11-19 07:58:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 571 transitions. [2023-11-19 07:58:05,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:58:05,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:05,715 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:05,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-19 07:58:05,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:58:05,932 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:05,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash 778272323, now seen corresponding path program 1 times [2023-11-19 07:58:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:05,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297257569] [2023-11-19 07:58:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:05,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [761219210] [2023-11-19 07:58:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:05,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:05,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:05,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:58:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:06,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:06,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:06,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:06,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:06,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297257569] [2023-11-19 07:58:06,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:06,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761219210] [2023-11-19 07:58:06,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761219210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:06,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:06,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:06,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540452359] [2023-11-19 07:58:06,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:06,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:06,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:06,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:06,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:06,118 INFO L87 Difference]: Start difference. First operand 480 states and 571 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:06,251 INFO L93 Difference]: Finished difference Result 487 states and 571 transitions. [2023-11-19 07:58:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:06,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2023-11-19 07:58:06,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:06,257 INFO L225 Difference]: With dead ends: 487 [2023-11-19 07:58:06,257 INFO L226 Difference]: Without dead ends: 479 [2023-11-19 07:58:06,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:06,258 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 311 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:06,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 419 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:58:06,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-19 07:58:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 472. [2023-11-19 07:58:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 332 states have (on average 1.5512048192771084) internal successors, (515), 447 states have internal predecessors, (515), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:58:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 561 transitions. [2023-11-19 07:58:06,281 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 561 transitions. Word has length 91 [2023-11-19 07:58:06,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:06,282 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 561 transitions. [2023-11-19 07:58:06,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-19 07:58:06,282 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 561 transitions. [2023-11-19 07:58:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:58:06,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:06,283 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:06,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:06,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:58:06,500 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:06,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1643361713, now seen corresponding path program 1 times [2023-11-19 07:58:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:06,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606487283] [2023-11-19 07:58:06,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:06,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:06,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499055208] [2023-11-19 07:58:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:06,533 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:06,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 07:58:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:06,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:58:06,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:06,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606487283] [2023-11-19 07:58:06,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499055208] [2023-11-19 07:58:06,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499055208] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:06,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:06,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:58:06,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874209103] [2023-11-19 07:58:06,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:06,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:06,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:06,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:06,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:06,848 INFO L87 Difference]: Start difference. First operand 472 states and 561 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:58:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:07,079 INFO L93 Difference]: Finished difference Result 829 states and 997 transitions. [2023-11-19 07:58:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:58:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-19 07:58:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:07,085 INFO L225 Difference]: With dead ends: 829 [2023-11-19 07:58:07,085 INFO L226 Difference]: Without dead ends: 821 [2023-11-19 07:58:07,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:07,087 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 884 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:07,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 798 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:58:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-11-19 07:58:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 545. [2023-11-19 07:58:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 405 states have (on average 1.525925925925926) internal successors, (618), 515 states have internal predecessors, (618), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 674 transitions. [2023-11-19 07:58:07,120 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 674 transitions. Word has length 92 [2023-11-19 07:58:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:07,120 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 674 transitions. [2023-11-19 07:58:07,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 07:58:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 674 transitions. [2023-11-19 07:58:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:58:07,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:07,122 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:07,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:07,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:07,341 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:07,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:07,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1996328184, now seen corresponding path program 1 times [2023-11-19 07:58:07,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:07,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905480012] [2023-11-19 07:58:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:07,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:07,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:07,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136969886] [2023-11-19 07:58:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:07,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:07,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:07,369 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:07,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 07:58:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:07,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:58:07,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:58:07,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:07,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:07,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905480012] [2023-11-19 07:58:07,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:07,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136969886] [2023-11-19 07:58:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136969886] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:07,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:07,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 6 [2023-11-19 07:58:07,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530709601] [2023-11-19 07:58:07,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:07,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:07,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:07,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:07,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:07,734 INFO L87 Difference]: Start difference. First operand 545 states and 674 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:58:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:07,815 INFO L93 Difference]: Finished difference Result 722 states and 846 transitions. [2023-11-19 07:58:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:58:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2023-11-19 07:58:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:07,820 INFO L225 Difference]: With dead ends: 722 [2023-11-19 07:58:07,820 INFO L226 Difference]: Without dead ends: 556 [2023-11-19 07:58:07,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 192 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:07,821 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 76 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:07,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 943 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:58:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-11-19 07:58:07,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 549. [2023-11-19 07:58:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 408 states have (on average 1.5196078431372548) internal successors, (620), 518 states have internal predecessors, (620), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 676 transitions. [2023-11-19 07:58:07,847 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 676 transitions. Word has length 101 [2023-11-19 07:58:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 676 transitions. [2023-11-19 07:58:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:58:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 676 transitions. [2023-11-19 07:58:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 07:58:07,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:07,849 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:07,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-19 07:58:08,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:08,064 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:08,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1885573092, now seen corresponding path program 1 times [2023-11-19 07:58:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:08,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720770932] [2023-11-19 07:58:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:08,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:08,076 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:08,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51047847] [2023-11-19 07:58:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:08,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:08,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:08,078 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:08,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:58:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:08,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:58:08,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:08,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 07:58:08,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:08,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720770932] [2023-11-19 07:58:08,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:08,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51047847] [2023-11-19 07:58:08,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51047847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:08,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:08,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:58:08,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217854584] [2023-11-19 07:58:08,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:08,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:08,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:08,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:08,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:08,455 INFO L87 Difference]: Start difference. First operand 549 states and 676 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:58:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:08,739 INFO L93 Difference]: Finished difference Result 915 states and 1015 transitions. [2023-11-19 07:58:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:58:08,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2023-11-19 07:58:08,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:08,745 INFO L225 Difference]: With dead ends: 915 [2023-11-19 07:58:08,745 INFO L226 Difference]: Without dead ends: 909 [2023-11-19 07:58:08,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:58:08,747 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1035 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:08,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1257 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:58:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2023-11-19 07:58:08,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 549. [2023-11-19 07:58:08,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 412 states have (on average 1.4927184466019416) internal successors, (615), 517 states have internal predecessors, (615), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:58:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 673 transitions. [2023-11-19 07:58:08,785 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 673 transitions. Word has length 103 [2023-11-19 07:58:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:08,788 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 673 transitions. [2023-11-19 07:58:08,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:58:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 673 transitions. [2023-11-19 07:58:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:58:08,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:08,790 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:08,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:09,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-19 07:58:09,010 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:09,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:09,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1519996851, now seen corresponding path program 1 times [2023-11-19 07:58:09,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:09,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171085763] [2023-11-19 07:58:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:09,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:09,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25395895] [2023-11-19 07:58:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:09,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:09,031 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:09,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 07:58:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:09,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:09,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:58:09,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171085763] [2023-11-19 07:58:09,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25395895] [2023-11-19 07:58:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25395895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:09,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:09,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799002591] [2023-11-19 07:58:09,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:09,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:09,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:09,243 INFO L87 Difference]: Start difference. First operand 549 states and 673 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:58:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:09,548 INFO L93 Difference]: Finished difference Result 556 states and 673 transitions. [2023-11-19 07:58:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2023-11-19 07:58:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:09,552 INFO L225 Difference]: With dead ends: 556 [2023-11-19 07:58:09,552 INFO L226 Difference]: Without dead ends: 555 [2023-11-19 07:58:09,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:09,553 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 161 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:09,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 325 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:58:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2023-11-19 07:58:09,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 549. [2023-11-19 07:58:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 412 states have (on average 1.4902912621359223) internal successors, (614), 517 states have internal predecessors, (614), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:58:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 672 transitions. [2023-11-19 07:58:09,587 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 672 transitions. Word has length 105 [2023-11-19 07:58:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:09,587 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 672 transitions. [2023-11-19 07:58:09,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:58:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 672 transitions. [2023-11-19 07:58:09,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:58:09,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:09,589 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:09,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:09,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:58:09,810 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:09,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -124737670, now seen corresponding path program 1 times [2023-11-19 07:58:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:09,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842475407] [2023-11-19 07:58:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:09,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:09,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797079019] [2023-11-19 07:58:09,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:09,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:09,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:09,827 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:09,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-19 07:58:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:09,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:58:09,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:58:10,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842475407] [2023-11-19 07:58:10,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797079019] [2023-11-19 07:58:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797079019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:10,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82766063] [2023-11-19 07:58:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:10,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:10,213 INFO L87 Difference]: Start difference. First operand 549 states and 672 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:58:10,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:10,753 INFO L93 Difference]: Finished difference Result 555 states and 672 transitions. [2023-11-19 07:58:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:58:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2023-11-19 07:58:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:10,758 INFO L225 Difference]: With dead ends: 555 [2023-11-19 07:58:10,758 INFO L226 Difference]: Without dead ends: 554 [2023-11-19 07:58:10,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:10,759 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:10,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 363 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:58:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-19 07:58:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 549. [2023-11-19 07:58:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 412 states have (on average 1.4878640776699028) internal successors, (613), 517 states have internal predecessors, (613), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:58:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 671 transitions. [2023-11-19 07:58:10,789 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 671 transitions. Word has length 106 [2023-11-19 07:58:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:10,790 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 671 transitions. [2023-11-19 07:58:10,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:58:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 671 transitions. [2023-11-19 07:58:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:58:10,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:10,792 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:10,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-19 07:58:11,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:58:11,013 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:11,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:11,013 INFO L85 PathProgramCache]: Analyzing trace with hash 263146541, now seen corresponding path program 1 times [2023-11-19 07:58:11,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:11,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724348105] [2023-11-19 07:58:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:11,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:11,025 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:11,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048220976] [2023-11-19 07:58:11,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:11,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:11,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:11,027 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:11,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-19 07:58:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:11,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:58:11,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:11,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:58:11,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:11,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724348105] [2023-11-19 07:58:11,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:11,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048220976] [2023-11-19 07:58:11,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048220976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:11,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:11,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:11,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100734914] [2023-11-19 07:58:11,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:11,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:11,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:11,425 INFO L87 Difference]: Start difference. First operand 549 states and 671 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:13,610 INFO L93 Difference]: Finished difference Result 554 states and 671 transitions. [2023-11-19 07:58:13,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:58:13,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 124 [2023-11-19 07:58:13,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:13,615 INFO L225 Difference]: With dead ends: 554 [2023-11-19 07:58:13,615 INFO L226 Difference]: Without dead ends: 541 [2023-11-19 07:58:13,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:13,616 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 273 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:13,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 365 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:58:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-11-19 07:58:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 536. [2023-11-19 07:58:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 412 states have (on average 1.4296116504854368) internal successors, (589), 504 states have internal predecessors, (589), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-19 07:58:13,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 647 transitions. [2023-11-19 07:58:13,654 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 647 transitions. Word has length 124 [2023-11-19 07:58:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:13,655 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 647 transitions. [2023-11-19 07:58:13,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 647 transitions. [2023-11-19 07:58:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 07:58:13,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:13,657 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:13,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:13,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:58:13,877 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:13,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash -432391732, now seen corresponding path program 1 times [2023-11-19 07:58:13,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:13,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216136226] [2023-11-19 07:58:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:13,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293310150] [2023-11-19 07:58:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:13,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:13,900 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-19 07:58:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:13,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:58:13,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:14,295 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:14,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:14,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216136226] [2023-11-19 07:58:14,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293310150] [2023-11-19 07:58:14,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293310150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:14,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:14,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:58:14,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053879510] [2023-11-19 07:58:14,548 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:14,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:14,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:14,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:14,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:14,551 INFO L87 Difference]: Start difference. First operand 536 states and 647 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:15,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:15,902 INFO L93 Difference]: Finished difference Result 719 states and 804 transitions. [2023-11-19 07:58:15,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:58:15,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 125 [2023-11-19 07:58:15,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:15,907 INFO L225 Difference]: With dead ends: 719 [2023-11-19 07:58:15,907 INFO L226 Difference]: Without dead ends: 698 [2023-11-19 07:58:15,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:15,909 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 246 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:15,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 603 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:58:15,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-19 07:58:15,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 617. [2023-11-19 07:58:15,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 488 states have (on average 1.4385245901639345) internal successors, (702), 580 states have internal predecessors, (702), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:58:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 770 transitions. [2023-11-19 07:58:15,957 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 770 transitions. Word has length 125 [2023-11-19 07:58:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:15,957 INFO L495 AbstractCegarLoop]: Abstraction has 617 states and 770 transitions. [2023-11-19 07:58:15,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 07:58:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 770 transitions. [2023-11-19 07:58:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-19 07:58:15,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:15,960 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:15,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:16,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:16,173 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:16,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:16,174 INFO L85 PathProgramCache]: Analyzing trace with hash -519241713, now seen corresponding path program 1 times [2023-11-19 07:58:16,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:16,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636146634] [2023-11-19 07:58:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:16,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:16,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:16,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27367404] [2023-11-19 07:58:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:16,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:16,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:16,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-19 07:58:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:16,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:16,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:16,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:16,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636146634] [2023-11-19 07:58:16,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:16,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27367404] [2023-11-19 07:58:16,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27367404] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:16,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:16,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:58:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589818267] [2023-11-19 07:58:16,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:16,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:16,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:16,757 INFO L87 Difference]: Start difference. First operand 617 states and 770 transitions. Second operand has 6 states, 5 states have (on average 34.8) internal successors, (174), 6 states have internal predecessors, (174), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:18,162 INFO L93 Difference]: Finished difference Result 722 states and 783 transitions. [2023-11-19 07:58:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:58:18,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.8) internal successors, (174), 6 states have internal predecessors, (174), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 126 [2023-11-19 07:58:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:18,166 INFO L225 Difference]: With dead ends: 722 [2023-11-19 07:58:18,166 INFO L226 Difference]: Without dead ends: 717 [2023-11-19 07:58:18,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:18,167 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 613 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:18,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 718 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 07:58:18,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-19 07:58:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 616. [2023-11-19 07:58:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 488 states have (on average 1.4200819672131149) internal successors, (693), 579 states have internal predecessors, (693), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:58:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 761 transitions. [2023-11-19 07:58:18,201 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 761 transitions. Word has length 126 [2023-11-19 07:58:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:18,202 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 761 transitions. [2023-11-19 07:58:18,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.8) internal successors, (174), 6 states have internal predecessors, (174), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 761 transitions. [2023-11-19 07:58:18,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 07:58:18,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:18,204 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:18,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:18,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:58:18,424 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:18,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1083376174, now seen corresponding path program 1 times [2023-11-19 07:58:18,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:18,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302280611] [2023-11-19 07:58:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:18,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:18,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275872103] [2023-11-19 07:58:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:18,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:18,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:18,441 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:18,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 07:58:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:18,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:18,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:18,736 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:18,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302280611] [2023-11-19 07:58:18,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275872103] [2023-11-19 07:58:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275872103] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:18,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:18,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-19 07:58:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994426358] [2023-11-19 07:58:18,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:18,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:18,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:18,884 INFO L87 Difference]: Start difference. First operand 616 states and 761 transitions. Second operand has 6 states, 5 states have (on average 35.2) internal successors, (176), 6 states have internal predecessors, (176), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:19,739 INFO L93 Difference]: Finished difference Result 718 states and 774 transitions. [2023-11-19 07:58:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.2) internal successors, (176), 6 states have internal predecessors, (176), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2023-11-19 07:58:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:19,743 INFO L225 Difference]: With dead ends: 718 [2023-11-19 07:58:19,743 INFO L226 Difference]: Without dead ends: 713 [2023-11-19 07:58:19,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:19,745 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 553 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:19,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 600 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:58:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-19 07:58:19,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 615. [2023-11-19 07:58:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 488 states have (on average 1.401639344262295) internal successors, (684), 578 states have internal predecessors, (684), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:58:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 752 transitions. [2023-11-19 07:58:19,785 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 752 transitions. Word has length 127 [2023-11-19 07:58:19,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:19,786 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 752 transitions. [2023-11-19 07:58:19,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.2) internal successors, (176), 6 states have internal predecessors, (176), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 752 transitions. [2023-11-19 07:58:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 07:58:19,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:19,788 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:19,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:20,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:58:20,008 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:20,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash -775076879, now seen corresponding path program 1 times [2023-11-19 07:58:20,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209080841] [2023-11-19 07:58:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:20,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:20,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:20,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315376357] [2023-11-19 07:58:20,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:20,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:20,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:20,022 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:20,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-19 07:58:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:20,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:58:20,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:20,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 07:58:20,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209080841] [2023-11-19 07:58:20,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:20,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315376357] [2023-11-19 07:58:20,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315376357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:20,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:20,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-19 07:58:20,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95068755] [2023-11-19 07:58:20,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:20,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:58:20,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:58:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:20,985 INFO L87 Difference]: Start difference. First operand 615 states and 752 transitions. Second operand has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:26,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 07:58:31,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:31,929 INFO L93 Difference]: Finished difference Result 746 states and 789 transitions. [2023-11-19 07:58:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:58:31,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 128 [2023-11-19 07:58:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:31,933 INFO L225 Difference]: With dead ends: 746 [2023-11-19 07:58:31,933 INFO L226 Difference]: Without dead ends: 592 [2023-11-19 07:58:31,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:58:31,934 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 989 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 118 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:31,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 588 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2073 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2023-11-19 07:58:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-19 07:58:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 507. [2023-11-19 07:58:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 388 states have (on average 1.3969072164948453) internal successors, (542), 476 states have internal predecessors, (542), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 598 transitions. [2023-11-19 07:58:31,965 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 598 transitions. Word has length 128 [2023-11-19 07:58:31,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:31,966 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 598 transitions. [2023-11-19 07:58:31,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-19 07:58:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 598 transitions. [2023-11-19 07:58:31,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-19 07:58:31,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:31,968 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:31,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:32,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:58:32,189 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:32,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:32,190 INFO L85 PathProgramCache]: Analyzing trace with hash 204081571, now seen corresponding path program 1 times [2023-11-19 07:58:32,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:32,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122314226] [2023-11-19 07:58:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:32,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:32,210 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:32,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237694923] [2023-11-19 07:58:32,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:32,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:32,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:32,212 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:32,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-19 07:58:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:32,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:32,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:58:32,508 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:58:32,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:32,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122314226] [2023-11-19 07:58:32,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:32,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237694923] [2023-11-19 07:58:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237694923] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:32,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:58:32,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-19 07:58:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941565939] [2023-11-19 07:58:32,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:32,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:58:32,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:58:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:32,744 INFO L87 Difference]: Start difference. First operand 507 states and 598 transitions. Second operand has 8 states, 7 states have (on average 34.0) internal successors, (238), 8 states have internal predecessors, (238), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:58:33,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:33,198 INFO L93 Difference]: Finished difference Result 680 states and 762 transitions. [2023-11-19 07:58:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:33,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 34.0) internal successors, (238), 8 states have internal predecessors, (238), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 173 [2023-11-19 07:58:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:33,203 INFO L225 Difference]: With dead ends: 680 [2023-11-19 07:58:33,204 INFO L226 Difference]: Without dead ends: 678 [2023-11-19 07:58:33,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:58:33,205 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 922 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:33,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 879 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:58:33,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-19 07:58:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 505. [2023-11-19 07:58:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 388 states have (on average 1.3814432989690721) internal successors, (536), 474 states have internal predecessors, (536), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 592 transitions. [2023-11-19 07:58:33,237 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 592 transitions. Word has length 173 [2023-11-19 07:58:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 592 transitions. [2023-11-19 07:58:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 34.0) internal successors, (238), 8 states have internal predecessors, (238), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-19 07:58:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 592 transitions. [2023-11-19 07:58:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 07:58:33,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:33,240 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:33,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-19 07:58:33,460 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:33,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2031561587, now seen corresponding path program 1 times [2023-11-19 07:58:33,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:33,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496512739] [2023-11-19 07:58:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:33,471 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:33,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592185711] [2023-11-19 07:58:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:33,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:33,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,473 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-19 07:58:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:33,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:58:33,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:58:34,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:34,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496512739] [2023-11-19 07:58:34,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592185711] [2023-11-19 07:58:34,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592185711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:34,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:34,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-19 07:58:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001365474] [2023-11-19 07:58:34,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:34,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:34,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:34,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:34,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:34,538 INFO L87 Difference]: Start difference. First operand 505 states and 592 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:58:35,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:35,472 INFO L93 Difference]: Finished difference Result 521 states and 592 transitions. [2023-11-19 07:58:35,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:35,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 174 [2023-11-19 07:58:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:35,475 INFO L225 Difference]: With dead ends: 521 [2023-11-19 07:58:35,475 INFO L226 Difference]: Without dead ends: 520 [2023-11-19 07:58:35,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:35,477 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 47 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:35,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 534 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:58:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-19 07:58:35,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 505. [2023-11-19 07:58:35,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 388 states have (on average 1.3788659793814433) internal successors, (535), 474 states have internal predecessors, (535), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 591 transitions. [2023-11-19 07:58:35,510 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 591 transitions. Word has length 174 [2023-11-19 07:58:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:35,511 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 591 transitions. [2023-11-19 07:58:35,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:58:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 591 transitions. [2023-11-19 07:58:35,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-19 07:58:35,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:35,513 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:35,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:35,732 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:35,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1446100059, now seen corresponding path program 1 times [2023-11-19 07:58:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972010162] [2023-11-19 07:58:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:35,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:35,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077799200] [2023-11-19 07:58:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:35,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,748 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-19 07:58:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:35,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:58:35,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:36,374 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:58:36,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:36,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:36,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972010162] [2023-11-19 07:58:36,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:58:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077799200] [2023-11-19 07:58:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077799200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:36,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:58:36,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-19 07:58:36,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392245070] [2023-11-19 07:58:36,559 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:36,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:36,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:36,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:58:36,561 INFO L87 Difference]: Start difference. First operand 505 states and 591 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:58:37,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:37,326 INFO L93 Difference]: Finished difference Result 520 states and 591 transitions. [2023-11-19 07:58:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:37,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 175 [2023-11-19 07:58:37,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:37,329 INFO L225 Difference]: With dead ends: 520 [2023-11-19 07:58:37,329 INFO L226 Difference]: Without dead ends: 519 [2023-11-19 07:58:37,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:58:37,330 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 87 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:37,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 640 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:58:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-11-19 07:58:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 505. [2023-11-19 07:58:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 388 states have (on average 1.3762886597938144) internal successors, (534), 474 states have internal predecessors, (534), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:58:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 590 transitions. [2023-11-19 07:58:37,361 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 590 transitions. Word has length 175 [2023-11-19 07:58:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:37,362 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 590 transitions. [2023-11-19 07:58:37,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 07:58:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 590 transitions. [2023-11-19 07:58:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-19 07:58:37,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:37,363 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:37,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-19 07:58:37,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-19 07:58:37,576 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-19 07:58:37,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2050273271, now seen corresponding path program 1 times [2023-11-19 07:58:37,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:37,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795536190] [2023-11-19 07:58:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:58:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433421287] [2023-11-19 07:58:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:37,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:37,591 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:37,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38e390ce-8b61-4e0d-b004-151d8799fa47/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-19 07:58:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:58:37,682 INFO L285 TraceCheckSpWp]: Computing forward predicates...