./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:11,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:11,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:58:11,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:11,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:11,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:11,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:11,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:11,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:11,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:11,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:11,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:11,740 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:11,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:11,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:11,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:58:11,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:11,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:58:11,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:11,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:11,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:11,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:11,748 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:58:11,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:11,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:11,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:11,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:11,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:11,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:11,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:11,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:11,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:11,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:11,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:11,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:11,758 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:11,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:11,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:11,760 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:11,760 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_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5f43b3e9ff1d4598a5a525fe9e716f863331c4c517b4b8adb0491943243286 [2023-11-06 21:58:12,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:12,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:12,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:12,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:12,147 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:12,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2023-11-06 21:58:15,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:16,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:16,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c [2023-11-06 21:58:16,042 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/data/a759be954/932168bcffb643618991344438832e5a/FLAG9d5452a38 [2023-11-06 21:58:16,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/data/a759be954/932168bcffb643618991344438832e5a [2023-11-06 21:58:16,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:16,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:16,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:16,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:16,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:16,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3a54a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16, skipping insertion in model container [2023-11-06 21:58:16,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:16,318 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2023-11-06 21:58:16,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:16,365 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:16,381 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/sv-benchmarks/c/loops-crafted-1/mono-crafted_10.c[319,332] [2023-11-06 21:58:16,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:16,403 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:16,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16 WrapperNode [2023-11-06 21:58:16,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:16,406 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:16,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:16,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:16,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,449 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2023-11-06 21:58:16,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:16,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:16,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:16,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:16,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:16,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:16,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:16,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:16,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (1/1) ... [2023-11-06 21:58:16,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:16,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:16,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:16,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:16,671 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:16,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:16,861 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:16,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:16,869 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:58:16,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:16 BoogieIcfgContainer [2023-11-06 21:58:16,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:16,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:16,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:16,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:16,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:16" (1/3) ... [2023-11-06 21:58:16,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64437a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:16, skipping insertion in model container [2023-11-06 21:58:16,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:16" (2/3) ... [2023-11-06 21:58:16,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64437a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:16, skipping insertion in model container [2023-11-06 21:58:16,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:16" (3/3) ... [2023-11-06 21:58:16,884 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_10.c [2023-11-06 21:58:16,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:16,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:58:16,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:16,977 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=LoopsAndPotentialCycles, 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;@49d105c2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:16,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:58:16,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-11-06 21:58:16,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 21:58:16,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:16,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:58:16,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:17,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash 889968487, now seen corresponding path program 1 times [2023-11-06 21:58:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:17,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14523946] [2023-11-06 21:58:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:17,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:17,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14523946] [2023-11-06 21:58:17,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14523946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:17,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:17,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:17,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915045603] [2023-11-06 21:58:17,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:17,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:58:17,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:17,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:58:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:17,340 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-06 21:58:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:17,362 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2023-11-06 21:58:17,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:58:17,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-06 21:58:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:17,378 INFO L225 Difference]: With dead ends: 21 [2023-11-06 21:58:17,378 INFO L226 Difference]: Without dead ends: 9 [2023-11-06 21:58:17,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:17,390 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:17,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-06 21:58:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-06 21:58:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2023-11-06 21:58:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-06 21:58:17,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2023-11-06 21:58:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:17,438 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-06 21:58:17,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-06 21:58:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-06 21:58:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 21:58:17,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:17,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:58:17,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:17,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:17,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:17,443 INFO L85 PathProgramCache]: Analyzing trace with hash 889640786, now seen corresponding path program 1 times [2023-11-06 21:58:17,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:17,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048117274] [2023-11-06 21:58:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:17,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:17,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048117274] [2023-11-06 21:58:17,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048117274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:17,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:17,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:17,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262861047] [2023-11-06 21:58:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:17,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:17,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:17,851 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-06 21:58:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:17,886 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2023-11-06 21:58:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-06 21:58:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:17,888 INFO L225 Difference]: With dead ends: 19 [2023-11-06 21:58:17,888 INFO L226 Difference]: Without dead ends: 12 [2023-11-06 21:58:17,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:17,891 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:17,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-06 21:58:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-06 21:58:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2023-11-06 21:58:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-06 21:58:17,907 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2023-11-06 21:58:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:17,909 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-06 21:58:17,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-06 21:58:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-06 21:58:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 21:58:17,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:17,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:17,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:17,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:17,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:17,916 INFO L85 PathProgramCache]: Analyzing trace with hash 641725625, now seen corresponding path program 1 times [2023-11-06 21:58:17,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:17,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886791530] [2023-11-06 21:58:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:17,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:18,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:18,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886791530] [2023-11-06 21:58:18,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886791530] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:18,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019576595] [2023-11-06 21:58:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:18,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:18,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:18,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:58:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:58:18,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:18,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:18,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019576595] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:18,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:18,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2023-11-06 21:58:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744553262] [2023-11-06 21:58:18,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:18,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:58:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:18,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:58:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:58:18,798 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2023-11-06 21:58:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:18,947 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2023-11-06 21:58:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:58:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 9 [2023-11-06 21:58:18,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:18,956 INFO L225 Difference]: With dead ends: 26 [2023-11-06 21:58:18,956 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 21:58:18,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:58:18,966 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:18,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 21:58:18,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 21:58:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-11-06 21:58:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-06 21:58:18,982 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2023-11-06 21:58:18,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:18,983 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-06 21:58:18,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2023-11-06 21:58:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-06 21:58:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 21:58:18,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:18,985 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:18,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:19,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:19,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1171899538, now seen corresponding path program 2 times [2023-11-06 21:58:19,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:19,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891376319] [2023-11-06 21:58:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:19,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:19,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:19,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891376319] [2023-11-06 21:58:19,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891376319] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:19,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159162989] [2023-11-06 21:58:19,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:19,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:19,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:19,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:19,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:58:19,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:58:19,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:19,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:58:19,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:19,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:20,193 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:20,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159162989] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:20,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:20,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 20 [2023-11-06 21:58:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580265889] [2023-11-06 21:58:20,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:20,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 21:58:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 21:58:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2023-11-06 21:58:20,196 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 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) [2023-11-06 21:58:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:23,123 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2023-11-06 21:58:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 21:58:23,124 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 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 18 [2023-11-06 21:58:23,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:23,126 INFO L225 Difference]: With dead ends: 57 [2023-11-06 21:58:23,126 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 21:58:23,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2023-11-06 21:58:23,129 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 39 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:23,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 25 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 21:58:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 21:58:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-11-06 21:58:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 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) [2023-11-06 21:58:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-11-06 21:58:23,143 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 18 [2023-11-06 21:58:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:23,144 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-11-06 21:58:23,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 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) [2023-11-06 21:58:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-06 21:58:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-06 21:58:23,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:23,146 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:23,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 21:58:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:23,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:23,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:23,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1843997196, now seen corresponding path program 1 times [2023-11-06 21:58:23,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992199834] [2023-11-06 21:58:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:23,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:23,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:23,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992199834] [2023-11-06 21:58:23,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992199834] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:23,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468540320] [2023-11-06 21:58:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:23,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:23,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:23,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:23,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:58:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:23,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 21:58:23,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:23,643 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 11 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468540320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:23,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:23,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-06 21:58:23,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608925914] [2023-11-06 21:58:23,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:23,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 21:58:23,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:23,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 21:58:23,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2023-11-06 21:58:23,866 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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) [2023-11-06 21:58:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:25,071 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2023-11-06 21:58:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 21:58:25,072 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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 24 [2023-11-06 21:58:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:25,074 INFO L225 Difference]: With dead ends: 60 [2023-11-06 21:58:25,074 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 21:58:25,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=150, Invalid=230, Unknown=0, NotChecked=0, Total=380 [2023-11-06 21:58:25,076 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:25,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 23 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:58:25,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 21:58:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2023-11-06 21:58:25,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.0930232558139534) internal successors, (47), 43 states have internal predecessors, (47), 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) [2023-11-06 21:58:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2023-11-06 21:58:25,092 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 24 [2023-11-06 21:58:25,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:25,092 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2023-11-06 21:58:25,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 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) [2023-11-06 21:58:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2023-11-06 21:58:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-06 21:58:25,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:25,095 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:25,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:25,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:25,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:25,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash -51731342, now seen corresponding path program 3 times [2023-11-06 21:58:25,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:25,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396582986] [2023-11-06 21:58:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:25,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:25,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:25,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396582986] [2023-11-06 21:58:25,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396582986] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:25,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974326989] [2023-11-06 21:58:25,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:58:25,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:25,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:25,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:25,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:58:26,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 21:58:26,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:26,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:58:26,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-06 21:58:26,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:26,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974326989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:26,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:26,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2023-11-06 21:58:26,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759765783] [2023-11-06 21:58:26,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:26,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:26,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:26,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:26,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-06 21:58:26,221 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-06 21:58:26,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:26,303 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2023-11-06 21:58:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:26,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 36 [2023-11-06 21:58:26,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:26,305 INFO L225 Difference]: With dead ends: 53 [2023-11-06 21:58:26,305 INFO L226 Difference]: Without dead ends: 49 [2023-11-06 21:58:26,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2023-11-06 21:58:26,307 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:26,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-06 21:58:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2023-11-06 21:58:26,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 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) [2023-11-06 21:58:26,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2023-11-06 21:58:26,323 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 36 [2023-11-06 21:58:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:26,324 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2023-11-06 21:58:26,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-06 21:58:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2023-11-06 21:58:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 21:58:26,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:26,327 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:26,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:26,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 21:58:26,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:26,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:26,534 INFO L85 PathProgramCache]: Analyzing trace with hash 141362107, now seen corresponding path program 2 times [2023-11-06 21:58:26,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:26,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594098614] [2023-11-06 21:58:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 25 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:27,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594098614] [2023-11-06 21:58:27,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594098614] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278625453] [2023-11-06 21:58:27,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:27,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:27,133 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:27,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:58:27,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:58:27,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:27,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-06 21:58:27,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 25 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:27,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 25 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:28,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278625453] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:28,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:28,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 16] total 31 [2023-11-06 21:58:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133349680] [2023-11-06 21:58:28,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:28,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-06 21:58:28,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:28,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-06 21:58:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=645, Unknown=0, NotChecked=0, Total=930 [2023-11-06 21:58:28,492 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 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) [2023-11-06 21:58:48,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:48,075 INFO L93 Difference]: Finished difference Result 97 states and 113 transitions. [2023-11-06 21:58:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-06 21:58:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 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 45 [2023-11-06 21:58:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:48,078 INFO L225 Difference]: With dead ends: 97 [2023-11-06 21:58:48,078 INFO L226 Difference]: Without dead ends: 88 [2023-11-06 21:58:48,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=657, Invalid=1149, Unknown=0, NotChecked=0, Total=1806 [2023-11-06 21:58:48,081 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:48,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 58 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:58:48,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-06 21:58:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-06 21:58:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 87 states have internal predecessors, (89), 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) [2023-11-06 21:58:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2023-11-06 21:58:48,100 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 45 [2023-11-06 21:58:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:48,100 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2023-11-06 21:58:48,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 31 states have internal predecessors, (87), 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) [2023-11-06 21:58:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2023-11-06 21:58:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-06 21:58:48,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:48,105 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:48,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:48,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 21:58:48,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:48,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -121369253, now seen corresponding path program 3 times [2023-11-06 21:58:48,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:48,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019728949] [2023-11-06 21:58:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:48,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 53 proven. 1027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:49,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019728949] [2023-11-06 21:58:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019728949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:49,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177035257] [2023-11-06 21:58:49,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:58:49,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:49,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:49,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:49,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 21:58:49,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-06 21:58:49,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:49,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 21:58:49,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:50,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-06 21:58:50,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2023-11-06 21:58:51,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177035257] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:51,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:51,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 7, 8] total 40 [2023-11-06 21:58:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250643358] [2023-11-06 21:58:51,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:51,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-06 21:58:51,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:51,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-06 21:58:51,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1343, Unknown=0, NotChecked=0, Total=1560 [2023-11-06 21:58:51,046 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand has 40 states, 40 states have (on average 2.675) internal successors, (107), 40 states have internal predecessors, (107), 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) [2023-11-06 21:58:53,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:53,979 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2023-11-06 21:58:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-06 21:58:53,980 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.675) internal successors, (107), 40 states have internal predecessors, (107), 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 87 [2023-11-06 21:58:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:53,982 INFO L225 Difference]: With dead ends: 116 [2023-11-06 21:58:53,982 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 21:58:53,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=788, Invalid=4324, Unknown=0, NotChecked=0, Total=5112 [2023-11-06 21:58:53,987 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 87 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:53,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 64 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-06 21:58:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 21:58:54,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2023-11-06 21:58:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0476190476190477) internal successors, (110), 105 states have internal predecessors, (110), 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) [2023-11-06 21:58:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2023-11-06 21:58:54,007 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 87 [2023-11-06 21:58:54,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:54,008 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2023-11-06 21:58:54,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.675) internal successors, (107), 40 states have internal predecessors, (107), 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) [2023-11-06 21:58:54,009 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2023-11-06 21:58:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-06 21:58:54,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:54,011 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 28, 5, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:54,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:54,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:54,218 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:58:54,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:54,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1869371387, now seen corresponding path program 4 times [2023-11-06 21:58:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:54,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185247402] [2023-11-06 21:58:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:54,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 401 proven. 1190 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-06 21:58:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:55,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185247402] [2023-11-06 21:58:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185247402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585772862] [2023-11-06 21:58:55,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 21:58:55,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:55,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:55,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38fb8cf4-d909-4489-a5ba-d9682f3a66bc/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 21:58:55,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 21:58:55,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:55,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-06 21:58:55,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 326 proven. 1276 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 21:58:56,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 326 proven. 1276 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 21:58:58,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585772862] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:58,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:58,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 32, 32] total 63 [2023-11-06 21:58:58,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980939664] [2023-11-06 21:58:58,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:58,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-11-06 21:58:58,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:58,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-11-06 21:58:58,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1082, Invalid=2824, Unknown=0, NotChecked=0, Total=3906 [2023-11-06 21:58:58,475 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand has 63 states, 63 states have (on average 3.0317460317460316) internal successors, (191), 63 states have internal predecessors, (191), 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) [2023-11-06 21:59:02,067 WARN L839 $PredicateComparison]: unable to prove that (and (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 5000000) (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 5000000) (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 5000000) (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 5000000) (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 5000000) (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 5000000)) is different from false [2023-11-06 22:00:38,321 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 110 DAG size of output: 10 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:01:00,518 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 106 DAG size of output: 14 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)