./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/recHanoi01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:52,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:52,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:23:52,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:52,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:52,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:52,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:52,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:52,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:52,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:52,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:52,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:52,555 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:52,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:52,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:52,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:23:52,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:52,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:23:52,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:52,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:52,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:52,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:52,561 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:23:52,562 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:23:52,562 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:23:52,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:52,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:52,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:52,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:52,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:52,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:52,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:52,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:52,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:52,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:52,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:52,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:52,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:52,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:52,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:52,570 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:52,571 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_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 [2023-11-12 02:23:52,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:52,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:52,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:52,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:52,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:52,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/recursive/recHanoi01.c [2023-11-12 02:23:56,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:56,284 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:56,284 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/sv-benchmarks/c/recursive/recHanoi01.c [2023-11-12 02:23:56,294 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/data/d4df33d03/e92fcef34b7c4a9dada2343338c18bbe/FLAG80b1148a5 [2023-11-12 02:23:56,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/data/d4df33d03/e92fcef34b7c4a9dada2343338c18bbe [2023-11-12 02:23:56,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:56,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:56,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:56,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:56,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:56,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ae28cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56, skipping insertion in model container [2023-11-12 02:23:56,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:56,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:56,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:56,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:56,547 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:56,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56 WrapperNode [2023-11-12 02:23:56,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:56,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:56,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:56,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:56,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,580 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2023-11-12 02:23:56,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:56,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:56,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:56,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:56,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:56,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:56,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:56,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:56,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (1/1) ... [2023-11-12 02:23:56,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:56,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:56,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:56,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:56,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2023-11-12 02:23:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2023-11-12 02:23:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-11-12 02:23:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-11-12 02:23:56,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:56,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:56,781 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:56,784 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:57,000 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:57,007 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:57,007 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:23:57,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:57 BoogieIcfgContainer [2023-11-12 02:23:57,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:57,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:57,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:57,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:57,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:56" (1/3) ... [2023-11-12 02:23:57,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dad708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:57, skipping insertion in model container [2023-11-12 02:23:57,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:56" (2/3) ... [2023-11-12 02:23:57,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19dad708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:57, skipping insertion in model container [2023-11-12 02:23:57,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:57" (3/3) ... [2023-11-12 02:23:57,021 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2023-11-12 02:23:57,042 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:57,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-12 02:23:57,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:57,105 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21368b85, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:57,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 02:23:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-12 02:23:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:23:57,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:57,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:57,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:57,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash -163862552, now seen corresponding path program 1 times [2023-11-12 02:23:57,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:57,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947112763] [2023-11-12 02:23:57,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:57,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:57,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:57,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947112763] [2023-11-12 02:23:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947112763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:57,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:57,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:23:57,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420459003] [2023-11-12 02:23:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:57,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:57,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:57,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:57,505 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:57,658 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-11-12 02:23:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:57,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:23:57,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:57,674 INFO L225 Difference]: With dead ends: 84 [2023-11-12 02:23:57,674 INFO L226 Difference]: Without dead ends: 66 [2023-11-12 02:23:57,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:57,686 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:57,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:57,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-12 02:23:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 47. [2023-11-12 02:23:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 40 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-12 02:23:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2023-11-12 02:23:57,751 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 7 [2023-11-12 02:23:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:57,752 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2023-11-12 02:23:57,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2023-11-12 02:23:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 02:23:57,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:57,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:57,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:57,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:57,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1441878698, now seen corresponding path program 1 times [2023-11-12 02:23:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:57,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561053124] [2023-11-12 02:23:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:57,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:57,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561053124] [2023-11-12 02:23:57,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561053124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:57,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:57,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79121963] [2023-11-12 02:23:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:57,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:23:57,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:57,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:23:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:57,930 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:58,028 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2023-11-12 02:23:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:23:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-12 02:23:58,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:58,031 INFO L225 Difference]: With dead ends: 78 [2023-11-12 02:23:58,031 INFO L226 Difference]: Without dead ends: 55 [2023-11-12 02:23:58,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:58,034 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 18 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:58,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 141 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:23:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-12 02:23:58,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2023-11-12 02:23:58,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 44 states have internal predecessors, (47), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:23:58,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2023-11-12 02:23:58,046 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 9 [2023-11-12 02:23:58,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:58,047 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2023-11-12 02:23:58,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,047 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-11-12 02:23:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:23:58,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:58,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:58,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:23:58,049 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting applyHanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:58,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1748566720, now seen corresponding path program 1 times [2023-11-12 02:23:58,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:58,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415634919] [2023-11-12 02:23:58,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:58,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:58,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415634919] [2023-11-12 02:23:58,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415634919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:58,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:58,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844189990] [2023-11-12 02:23:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:58,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:23:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:58,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:23:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:58,131 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:58,197 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2023-11-12 02:23:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:23:58,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-12 02:23:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:58,200 INFO L225 Difference]: With dead ends: 53 [2023-11-12 02:23:58,200 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 02:23:58,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:23:58,202 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:58,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 105 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:58,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 02:23:58,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-12 02:23:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 42 states have internal predecessors, (43), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:23:58,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2023-11-12 02:23:58,216 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 10 [2023-11-12 02:23:58,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:58,216 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2023-11-12 02:23:58,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2023-11-12 02:23:58,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:23:58,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:58,218 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:58,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:23:58,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:58,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash -895197661, now seen corresponding path program 1 times [2023-11-12 02:23:58,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:58,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371297676] [2023-11-12 02:23:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:58,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:58,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371297676] [2023-11-12 02:23:58,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371297676] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:23:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317685803] [2023-11-12 02:23:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:58,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:58,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:23:58,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:23:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:58,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:23:58,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:23:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:58,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:23:58,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317685803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:58,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:23:58,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-12 02:23:58,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513464788] [2023-11-12 02:23:58,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:58,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:23:58,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:58,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:23:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:23:58,619 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:58,678 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2023-11-12 02:23:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:23:58,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:23:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:58,702 INFO L225 Difference]: With dead ends: 51 [2023-11-12 02:23:58,702 INFO L226 Difference]: Without dead ends: 50 [2023-11-12 02:23:58,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:23:58,704 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 38 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:58,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 119 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:58,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-12 02:23:58,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-12 02:23:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 41 states have internal predecessors, (42), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:23:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2023-11-12 02:23:58,715 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 14 [2023-11-12 02:23:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:58,715 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2023-11-12 02:23:58,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:58,716 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-11-12 02:23:58,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:23:58,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:58,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:58,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:23:58,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:58,924 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:58,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1981323677, now seen corresponding path program 1 times [2023-11-12 02:23:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801958691] [2023-11-12 02:23:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:59,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801958691] [2023-11-12 02:23:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801958691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:23:59,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804821595] [2023-11-12 02:23:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:59,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:59,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:23:59,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:23:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:59,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 02:23:59,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:23:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:59,151 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:23:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:59,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804821595] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:23:59,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:23:59,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-12 02:23:59,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362377604] [2023-11-12 02:23:59,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:23:59,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:23:59,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:59,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:23:59,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:23:59,225 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:59,387 INFO L93 Difference]: Finished difference Result 157 states and 189 transitions. [2023-11-12 02:23:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:23:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 02:23:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:59,392 INFO L225 Difference]: With dead ends: 157 [2023-11-12 02:23:59,393 INFO L226 Difference]: Without dead ends: 156 [2023-11-12 02:23:59,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:23:59,396 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 100 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:59,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 341 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:23:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-12 02:23:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 89. [2023-11-12 02:23:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.3) internal successors, (78), 72 states have internal predecessors, (78), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (28), 13 states have call predecessors, (28), 13 states have call successors, (28) [2023-11-12 02:23:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 120 transitions. [2023-11-12 02:23:59,442 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 120 transitions. Word has length 15 [2023-11-12 02:23:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:59,442 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 120 transitions. [2023-11-12 02:23:59,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2023-11-12 02:23:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:23:59,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:59,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:59,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:23:59,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:59,651 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:23:59,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:59,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1291491803, now seen corresponding path program 1 times [2023-11-12 02:23:59,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:59,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140256247] [2023-11-12 02:23:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:59,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:59,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:59,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:59,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140256247] [2023-11-12 02:23:59,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140256247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:23:59,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484220760] [2023-11-12 02:23:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:59,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:23:59,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:59,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:23:59,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:23:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:59,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:23:59,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:23:59,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:59,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:00,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484220760] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:00,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:00,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-12 02:24:00,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079751293] [2023-11-12 02:24:00,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:00,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:24:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:00,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:24:00,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:24:00,008 INFO L87 Difference]: Start difference. First operand 89 states and 120 transitions. Second operand has 12 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:00,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:00,200 INFO L93 Difference]: Finished difference Result 95 states and 126 transitions. [2023-11-12 02:24:00,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:24:00,201 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-12 02:24:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:00,206 INFO L225 Difference]: With dead ends: 95 [2023-11-12 02:24:00,207 INFO L226 Difference]: Without dead ends: 93 [2023-11-12 02:24:00,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:24:00,212 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 44 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:00,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 185 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:24:00,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-12 02:24:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-12 02:24:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 73 states have internal predecessors, (75), 14 states have call successors, (14), 6 states have call predecessors, (14), 9 states have return successors, (31), 13 states have call predecessors, (31), 13 states have call successors, (31) [2023-11-12 02:24:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 120 transitions. [2023-11-12 02:24:00,253 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 120 transitions. Word has length 16 [2023-11-12 02:24:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:00,253 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 120 transitions. [2023-11-12 02:24:00,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 120 transitions. [2023-11-12 02:24:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:24:00,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:00,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:00,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:00,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:00,464 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:00,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:00,465 INFO L85 PathProgramCache]: Analyzing trace with hash 978877444, now seen corresponding path program 1 times [2023-11-12 02:24:00,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:00,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14176326] [2023-11-12 02:24:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:00,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14176326] [2023-11-12 02:24:00,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14176326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:00,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:00,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:00,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43603291] [2023-11-12 02:24:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:00,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:00,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:00,599 INFO L87 Difference]: Start difference. First operand 93 states and 120 transitions. Second operand has 6 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:24:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:00,737 INFO L93 Difference]: Finished difference Result 113 states and 142 transitions. [2023-11-12 02:24:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:24:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-12 02:24:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:00,740 INFO L225 Difference]: With dead ends: 113 [2023-11-12 02:24:00,740 INFO L226 Difference]: Without dead ends: 110 [2023-11-12 02:24:00,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:24:00,741 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 72 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:00,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 83 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:24:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-12 02:24:00,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 103. [2023-11-12 02:24:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 81 states have internal predecessors, (88), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (32), 14 states have call predecessors, (32), 14 states have call successors, (32) [2023-11-12 02:24:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 135 transitions. [2023-11-12 02:24:00,759 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 135 transitions. Word has length 28 [2023-11-12 02:24:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:00,759 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 135 transitions. [2023-11-12 02:24:00,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:24:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 135 transitions. [2023-11-12 02:24:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-12 02:24:00,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:00,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:00,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:24:00,762 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:00,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash 280429750, now seen corresponding path program 1 times [2023-11-12 02:24:00,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:00,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11488908] [2023-11-12 02:24:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:00,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:24:00,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:00,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11488908] [2023-11-12 02:24:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11488908] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:00,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665192127] [2023-11-12 02:24:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:00,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:00,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:00,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:00,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:24:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:24:01,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:01,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:24:01,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665192127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:01,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:24:01,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-11-12 02:24:01,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176052427] [2023-11-12 02:24:01,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:01,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:01,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:24:01,109 INFO L87 Difference]: Start difference. First operand 103 states and 135 transitions. Second operand has 5 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:24:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:01,159 INFO L93 Difference]: Finished difference Result 103 states and 135 transitions. [2023-11-12 02:24:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:24:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-11-12 02:24:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:01,164 INFO L225 Difference]: With dead ends: 103 [2023-11-12 02:24:01,165 INFO L226 Difference]: Without dead ends: 102 [2023-11-12 02:24:01,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:24:01,167 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:01,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 101 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:24:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-11-12 02:24:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-11-12 02:24:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 72 states have (on average 1.1944444444444444) internal successors, (86), 80 states have internal predecessors, (86), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (32), 14 states have call predecessors, (32), 14 states have call successors, (32) [2023-11-12 02:24:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 133 transitions. [2023-11-12 02:24:01,211 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 133 transitions. Word has length 29 [2023-11-12 02:24:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 133 transitions. [2023-11-12 02:24:01,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:24:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 133 transitions. [2023-11-12 02:24:01,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 02:24:01,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:01,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:01,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:01,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:24:01,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:01,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash 533107753, now seen corresponding path program 1 times [2023-11-12 02:24:01,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:01,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121450802] [2023-11-12 02:24:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:01,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:01,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121450802] [2023-11-12 02:24:01,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121450802] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496307636] [2023-11-12 02:24:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:01,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:01,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:01,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:01,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:24:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:01,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:24:01,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:01,659 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:01,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:01,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496307636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:01,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:01,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2023-11-12 02:24:01,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895695515] [2023-11-12 02:24:01,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:01,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 02:24:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 02:24:01,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:24:01,760 INFO L87 Difference]: Start difference. First operand 102 states and 133 transitions. Second operand has 13 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:24:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:02,207 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2023-11-12 02:24:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:24:02,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2023-11-12 02:24:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:02,211 INFO L225 Difference]: With dead ends: 163 [2023-11-12 02:24:02,211 INFO L226 Difference]: Without dead ends: 162 [2023-11-12 02:24:02,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:24:02,213 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 269 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:02,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 140 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:24:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-12 02:24:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 138. [2023-11-12 02:24:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 110 states have internal predecessors, (131), 18 states have call successors, (18), 10 states have call predecessors, (18), 12 states have return successors, (35), 17 states have call predecessors, (35), 17 states have call successors, (35) [2023-11-12 02:24:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 184 transitions. [2023-11-12 02:24:02,231 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 184 transitions. Word has length 33 [2023-11-12 02:24:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:02,232 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 184 transitions. [2023-11-12 02:24:02,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 2.9) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-12 02:24:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 184 transitions. [2023-11-12 02:24:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:24:02,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:02,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:02,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:02,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-12 02:24:02,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:02,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:02,442 INFO L85 PathProgramCache]: Analyzing trace with hash -976431123, now seen corresponding path program 1 times [2023-11-12 02:24:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:02,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912139274] [2023-11-12 02:24:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:24:02,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912139274] [2023-11-12 02:24:02,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912139274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:02,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:02,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349732545] [2023-11-12 02:24:02,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:02,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:02,588 INFO L87 Difference]: Start difference. First operand 138 states and 184 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:24:02,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:02,700 INFO L93 Difference]: Finished difference Result 175 states and 237 transitions. [2023-11-12 02:24:02,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:02,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2023-11-12 02:24:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:02,702 INFO L225 Difference]: With dead ends: 175 [2023-11-12 02:24:02,703 INFO L226 Difference]: Without dead ends: 164 [2023-11-12 02:24:02,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:24:02,704 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 52 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:02,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 85 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:24:02,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-12 02:24:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-11-12 02:24:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 125 states have (on average 1.224) internal successors, (153), 132 states have internal predecessors, (153), 18 states have call successors, (18), 10 states have call predecessors, (18), 15 states have return successors, (39), 21 states have call predecessors, (39), 17 states have call successors, (39) [2023-11-12 02:24:02,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 210 transitions. [2023-11-12 02:24:02,722 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 210 transitions. Word has length 36 [2023-11-12 02:24:02,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:02,722 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 210 transitions. [2023-11-12 02:24:02,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-12 02:24:02,723 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 210 transitions. [2023-11-12 02:24:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-12 02:24:02,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:02,724 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-12 02:24:02,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:24:02,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:02,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash 985458174, now seen corresponding path program 2 times [2023-11-12 02:24:02,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:02,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457754723] [2023-11-12 02:24:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:02,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457754723] [2023-11-12 02:24:02,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457754723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513019067] [2023-11-12 02:24:02,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:24:02,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:02,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:02,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:03,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:24:03,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:24:03,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:03,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 02:24:03,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:03,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:03,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513019067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:03,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:03,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-11-12 02:24:03,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247856662] [2023-11-12 02:24:03,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:03,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:24:03,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:03,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:24:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:24:03,367 INFO L87 Difference]: Start difference. First operand 164 states and 210 transitions. Second operand has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:03,956 INFO L93 Difference]: Finished difference Result 1095 states and 1449 transitions. [2023-11-12 02:24:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:24:03,957 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-11-12 02:24:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:03,965 INFO L225 Difference]: With dead ends: 1095 [2023-11-12 02:24:03,965 INFO L226 Difference]: Without dead ends: 1094 [2023-11-12 02:24:03,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-11-12 02:24:03,968 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 496 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:03,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 383 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:24:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2023-11-12 02:24:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 266. [2023-11-12 02:24:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 36 states have call successors, (36), 16 states have call predecessors, (36), 27 states have return successors, (168), 39 states have call predecessors, (168), 35 states have call successors, (168) [2023-11-12 02:24:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 435 transitions. [2023-11-12 02:24:04,011 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 435 transitions. Word has length 36 [2023-11-12 02:24:04,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:04,012 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 435 transitions. [2023-11-12 02:24:04,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.8260869565217392) internal successors, (65), 24 states have internal predecessors, (65), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:04,012 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 435 transitions. [2023-11-12 02:24:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:24:04,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:04,014 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:04,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-12 02:24:04,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:24:04,220 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:04,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash 603763268, now seen corresponding path program 2 times [2023-11-12 02:24:04,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:04,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125415557] [2023-11-12 02:24:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:04,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:24:04,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:04,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125415557] [2023-11-12 02:24:04,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125415557] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:04,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885595691] [2023-11-12 02:24:04,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:24:04,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:04,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:04,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:24:04,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:24:04,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:04,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:24:04,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:04,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:24:05,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885595691] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:05,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:05,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 12] total 29 [2023-11-12 02:24:05,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086870610] [2023-11-12 02:24:05,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:05,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-12 02:24:05,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:05,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-12 02:24:05,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2023-11-12 02:24:05,032 INFO L87 Difference]: Start difference. First operand 266 states and 435 transitions. Second operand has 30 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 19 states have internal predecessors, (66), 13 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-12 02:24:06,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:06,411 INFO L93 Difference]: Finished difference Result 421 states and 585 transitions. [2023-11-12 02:24:06,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-12 02:24:06,412 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 19 states have internal predecessors, (66), 13 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 48 [2023-11-12 02:24:06,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:06,417 INFO L225 Difference]: With dead ends: 421 [2023-11-12 02:24:06,417 INFO L226 Difference]: Without dead ends: 420 [2023-11-12 02:24:06,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=841, Invalid=3191, Unknown=0, NotChecked=0, Total=4032 [2023-11-12 02:24:06,422 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 674 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:06,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 116 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:24:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-12 02:24:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 380. [2023-11-12 02:24:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 293 states have (on average 1.2184300341296928) internal successors, (357), 306 states have internal predecessors, (357), 42 states have call successors, (42), 22 states have call predecessors, (42), 39 states have return successors, (180), 51 states have call predecessors, (180), 41 states have call successors, (180) [2023-11-12 02:24:06,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 579 transitions. [2023-11-12 02:24:06,488 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 579 transitions. Word has length 48 [2023-11-12 02:24:06,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:06,488 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 579 transitions. [2023-11-12 02:24:06,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 19 states have internal predecessors, (66), 13 states have call successors, (17), 12 states have call predecessors, (17), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-12 02:24:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 579 transitions. [2023-11-12 02:24:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:24:06,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:06,490 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:06,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:06,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:24:06,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:06,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1788578095, now seen corresponding path program 1 times [2023-11-12 02:24:06,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:06,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762602580] [2023-11-12 02:24:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:06,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:24:07,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762602580] [2023-11-12 02:24:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762602580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:07,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061379197] [2023-11-12 02:24:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:07,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:07,021 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:07,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:24:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:07,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:24:07,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 02:24:07,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:24:07,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061379197] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:07,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:07,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 13] total 28 [2023-11-12 02:24:07,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501139628] [2023-11-12 02:24:07,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:07,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-12 02:24:07,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:07,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-12 02:24:07,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=655, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:24:07,753 INFO L87 Difference]: Start difference. First operand 380 states and 579 transitions. Second operand has 28 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 23 states have internal predecessors, (77), 14 states have call successors, (15), 4 states have call predecessors, (15), 8 states have return successors, (14), 8 states have call predecessors, (14), 12 states have call successors, (14) [2023-11-12 02:24:08,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:08,561 INFO L93 Difference]: Finished difference Result 1032 states and 1755 transitions. [2023-11-12 02:24:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 02:24:08,561 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 23 states have internal predecessors, (77), 14 states have call successors, (15), 4 states have call predecessors, (15), 8 states have return successors, (14), 8 states have call predecessors, (14), 12 states have call successors, (14) Word has length 48 [2023-11-12 02:24:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:08,568 INFO L225 Difference]: With dead ends: 1032 [2023-11-12 02:24:08,568 INFO L226 Difference]: Without dead ends: 678 [2023-11-12 02:24:08,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=302, Invalid=1678, Unknown=0, NotChecked=0, Total=1980 [2023-11-12 02:24:08,578 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 170 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:08,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 194 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:24:08,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-12 02:24:08,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 644. [2023-11-12 02:24:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 498 states have (on average 1.1907630522088353) internal successors, (593), 508 states have internal predecessors, (593), 91 states have call successors, (91), 52 states have call predecessors, (91), 49 states have return successors, (238), 83 states have call predecessors, (238), 70 states have call successors, (238) [2023-11-12 02:24:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 922 transitions. [2023-11-12 02:24:08,681 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 922 transitions. Word has length 48 [2023-11-12 02:24:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:08,681 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 922 transitions. [2023-11-12 02:24:08,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 2.9615384615384617) internal successors, (77), 23 states have internal predecessors, (77), 14 states have call successors, (15), 4 states have call predecessors, (15), 8 states have return successors, (14), 8 states have call predecessors, (14), 12 states have call successors, (14) [2023-11-12 02:24:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 922 transitions. [2023-11-12 02:24:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 02:24:08,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:08,685 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:08,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:08,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:08,891 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:08,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:08,891 INFO L85 PathProgramCache]: Analyzing trace with hash 220460964, now seen corresponding path program 3 times [2023-11-12 02:24:08,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:08,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275911921] [2023-11-12 02:24:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:08,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 2 proven. 262 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:24:09,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:09,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275911921] [2023-11-12 02:24:09,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275911921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:09,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854101568] [2023-11-12 02:24:09,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:24:09,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:09,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:09,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:09,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:24:09,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-12 02:24:09,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:09,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-12 02:24:09,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2023-11-12 02:24:09,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-11-12 02:24:10,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854101568] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:10,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:10,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 8, 9] total 37 [2023-11-12 02:24:10,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191984865] [2023-11-12 02:24:10,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:10,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-11-12 02:24:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:10,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-11-12 02:24:10,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1115, Unknown=0, NotChecked=0, Total=1332 [2023-11-12 02:24:10,022 INFO L87 Difference]: Start difference. First operand 644 states and 922 transitions. Second operand has 37 states, 35 states have (on average 2.4) internal successors, (84), 22 states have internal predecessors, (84), 17 states have call successors, (21), 15 states have call predecessors, (21), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:24:11,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:11,721 INFO L93 Difference]: Finished difference Result 879 states and 1129 transitions. [2023-11-12 02:24:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-12 02:24:11,722 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 2.4) internal successors, (84), 22 states have internal predecessors, (84), 17 states have call successors, (21), 15 states have call predecessors, (21), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2023-11-12 02:24:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:11,730 INFO L225 Difference]: With dead ends: 879 [2023-11-12 02:24:11,731 INFO L226 Difference]: Without dead ends: 713 [2023-11-12 02:24:11,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1120, Invalid=4732, Unknown=0, NotChecked=0, Total=5852 [2023-11-12 02:24:11,735 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 945 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:11,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 87 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:24:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-12 02:24:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 667. [2023-11-12 02:24:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 521 states have (on average 1.1880998080614202) internal successors, (619), 521 states have internal predecessors, (619), 90 states have call successors, (90), 61 states have call predecessors, (90), 50 states have return successors, (222), 84 states have call predecessors, (222), 70 states have call successors, (222) [2023-11-12 02:24:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 931 transitions. [2023-11-12 02:24:11,829 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 931 transitions. Word has length 78 [2023-11-12 02:24:11,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:11,830 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 931 transitions. [2023-11-12 02:24:11,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 2.4) internal successors, (84), 22 states have internal predecessors, (84), 17 states have call successors, (21), 15 states have call predecessors, (21), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-12 02:24:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 931 transitions. [2023-11-12 02:24:11,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-12 02:24:11,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:11,835 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2023-11-12 02:24:11,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:12,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-12 02:24:12,041 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:12,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:12,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1229352162, now seen corresponding path program 3 times [2023-11-12 02:24:12,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:12,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841783037] [2023-11-12 02:24:12,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:12,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:13,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:13,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841783037] [2023-11-12 02:24:13,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841783037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:13,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721621276] [2023-11-12 02:24:13,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:24:13,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:13,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:13,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:13,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:24:13,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-12 02:24:13,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:13,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-12 02:24:13,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:13,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:13,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721621276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:13,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:13,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-11-12 02:24:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427325357] [2023-11-12 02:24:13,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:13,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-12 02:24:13,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:13,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-12 02:24:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 02:24:13,993 INFO L87 Difference]: Start difference. First operand 667 states and 931 transitions. Second operand has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:16,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:16,513 INFO L93 Difference]: Finished difference Result 5814 states and 8063 transitions. [2023-11-12 02:24:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-12 02:24:16,517 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2023-11-12 02:24:16,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:16,567 INFO L225 Difference]: With dead ends: 5814 [2023-11-12 02:24:16,567 INFO L226 Difference]: Without dead ends: 5733 [2023-11-12 02:24:16,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2023-11-12 02:24:16,577 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1109 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:16,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 782 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-12 02:24:16,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2023-11-12 02:24:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 1256. [2023-11-12 02:24:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 965 states have (on average 1.1398963730569949) internal successors, (1100), 964 states have internal predecessors, (1100), 198 states have call successors, (198), 121 states have call predecessors, (198), 87 states have return successors, (1183), 170 states have call predecessors, (1183), 154 states have call successors, (1183) [2023-11-12 02:24:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2481 transitions. [2023-11-12 02:24:16,866 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2481 transitions. Word has length 78 [2023-11-12 02:24:16,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:16,867 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 2481 transitions. [2023-11-12 02:24:16,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9148936170212765) internal successors, (137), 48 states have internal predecessors, (137), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:16,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2481 transitions. [2023-11-12 02:24:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 02:24:16,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:16,873 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:16,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:17,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:24:17,079 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:17,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash 9934441, now seen corresponding path program 4 times [2023-11-12 02:24:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:17,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868543204] [2023-11-12 02:24:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 15 proven. 356 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:24:17,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:17,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868543204] [2023-11-12 02:24:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868543204] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653066363] [2023-11-12 02:24:17,995 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:24:17,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:17,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:17,996 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:18,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:24:18,092 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:24:18,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:18,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-12 02:24:18,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 81 proven. 53 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2023-11-12 02:24:18,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 81 proven. 61 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-12 02:24:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653066363] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:18,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 11, 13] total 45 [2023-11-12 02:24:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454680258] [2023-11-12 02:24:18,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:18,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-11-12 02:24:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-11-12 02:24:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=1687, Unknown=0, NotChecked=0, Total=1980 [2023-11-12 02:24:18,654 INFO L87 Difference]: Start difference. First operand 1256 states and 2481 transitions. Second operand has 45 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 28 states have internal predecessors, (109), 23 states have call successors, (29), 17 states have call predecessors, (29), 6 states have return successors, (14), 9 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-12 02:24:19,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:19,609 INFO L93 Difference]: Finished difference Result 2311 states and 5079 transitions. [2023-11-12 02:24:19,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-12 02:24:19,610 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 28 states have internal predecessors, (109), 23 states have call successors, (29), 17 states have call predecessors, (29), 6 states have return successors, (14), 9 states have call predecessors, (14), 8 states have call successors, (14) Word has length 115 [2023-11-12 02:24:19,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:19,625 INFO L225 Difference]: With dead ends: 2311 [2023-11-12 02:24:19,625 INFO L226 Difference]: Without dead ends: 1090 [2023-11-12 02:24:19,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=622, Invalid=3410, Unknown=0, NotChecked=0, Total=4032 [2023-11-12 02:24:19,645 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 210 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:19,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 141 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:24:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2023-11-12 02:24:19,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 957. [2023-11-12 02:24:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 733 states have (on average 1.1077762619372442) internal successors, (812), 716 states have internal predecessors, (812), 124 states have call successors, (124), 94 states have call predecessors, (124), 95 states have return successors, (495), 146 states have call predecessors, (495), 123 states have call successors, (495) [2023-11-12 02:24:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1431 transitions. [2023-11-12 02:24:19,790 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1431 transitions. Word has length 115 [2023-11-12 02:24:19,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:19,790 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1431 transitions. [2023-11-12 02:24:19,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 28 states have internal predecessors, (109), 23 states have call successors, (29), 17 states have call predecessors, (29), 6 states have return successors, (14), 9 states have call predecessors, (14), 8 states have call successors, (14) [2023-11-12 02:24:19,791 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1431 transitions. [2023-11-12 02:24:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-12 02:24:19,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:19,794 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:19,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-12 02:24:20,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:24:20,004 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:20,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:20,005 INFO L85 PathProgramCache]: Analyzing trace with hash 542836559, now seen corresponding path program 2 times [2023-11-12 02:24:20,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:20,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819657800] [2023-11-12 02:24:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:20,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:24:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-12 02:24:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:20,350 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-11-12 02:24:20,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:20,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819657800] [2023-11-12 02:24:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819657800] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:20,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814326748] [2023-11-12 02:24:20,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:24:20,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:20,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:20,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:20,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-12 02:24:20,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:24:20,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:20,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:24:20,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-11-12 02:24:20,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:24:20,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814326748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:20,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:24:20,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-12 02:24:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639653709] [2023-11-12 02:24:20,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:20,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:20,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:20,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:24:20,555 INFO L87 Difference]: Start difference. First operand 957 states and 1431 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 02:24:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:20,667 INFO L93 Difference]: Finished difference Result 957 states and 1431 transitions. [2023-11-12 02:24:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:20,668 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) Word has length 144 [2023-11-12 02:24:20,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:20,677 INFO L225 Difference]: With dead ends: 957 [2023-11-12 02:24:20,677 INFO L226 Difference]: Without dead ends: 955 [2023-11-12 02:24:20,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:24:20,679 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:20,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 117 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:24:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-12 02:24:20,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2023-11-12 02:24:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 733 states have (on average 1.0750341064120055) internal successors, (788), 714 states have internal predecessors, (788), 124 states have call successors, (124), 94 states have call predecessors, (124), 95 states have return successors, (495), 146 states have call predecessors, (495), 123 states have call successors, (495) [2023-11-12 02:24:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1407 transitions. [2023-11-12 02:24:20,785 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1407 transitions. Word has length 144 [2023-11-12 02:24:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:20,786 INFO L495 AbstractCegarLoop]: Abstraction has 955 states and 1407 transitions. [2023-11-12 02:24:20,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-12 02:24:20,786 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1407 transitions. [2023-11-12 02:24:20,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-12 02:24:20,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:20,790 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:20,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:21,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-12 02:24:21,001 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:21,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash -351935791, now seen corresponding path program 1 times [2023-11-12 02:24:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:21,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639393280] [2023-11-12 02:24:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:24:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-12 02:24:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-11-12 02:24:21,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:21,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639393280] [2023-11-12 02:24:21,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639393280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:21,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621730337] [2023-11-12 02:24:21,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:21,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:21,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:21,271 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:21,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:24:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:24:21,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-11-12 02:24:21,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-11-12 02:24:21,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621730337] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:21,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:21,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2023-11-12 02:24:21,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649818415] [2023-11-12 02:24:21,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:21,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:24:21,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:21,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:24:21,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:24:21,690 INFO L87 Difference]: Start difference. First operand 955 states and 1407 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 02:24:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:21,979 INFO L93 Difference]: Finished difference Result 1178 states and 1690 transitions. [2023-11-12 02:24:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:24:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) Word has length 145 [2023-11-12 02:24:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:21,989 INFO L225 Difference]: With dead ends: 1178 [2023-11-12 02:24:21,989 INFO L226 Difference]: Without dead ends: 1113 [2023-11-12 02:24:21,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:24:21,991 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 77 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:21,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 146 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:24:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-11-12 02:24:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-11-12 02:24:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 868 states have (on average 1.0460829493087558) internal successors, (908), 845 states have internal predecessors, (908), 124 states have call successors, (124), 94 states have call predecessors, (124), 119 states have return successors, (522), 173 states have call predecessors, (522), 123 states have call successors, (522) [2023-11-12 02:24:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1554 transitions. [2023-11-12 02:24:22,104 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1554 transitions. Word has length 145 [2023-11-12 02:24:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:22,105 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1554 transitions. [2023-11-12 02:24:22,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 02:24:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1554 transitions. [2023-11-12 02:24:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-12 02:24:22,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:22,112 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:22,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:22,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-12 02:24:22,322 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:22,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1805318483, now seen corresponding path program 2 times [2023-11-12 02:24:22,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:22,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974851627] [2023-11-12 02:24:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:22,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:24:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:24:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-12 02:24:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:24:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:24:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-12 02:24:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-12 02:24:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 5 proven. 62 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-11-12 02:24:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:22,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974851627] [2023-11-12 02:24:22,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974851627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:22,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872909390] [2023-11-12 02:24:22,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:24:22,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:22,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:22,836 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:22,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-12 02:24:22,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:24:22,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:22,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-12 02:24:22,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 97 proven. 236 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-11-12 02:24:23,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 97 proven. 285 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-12 02:24:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872909390] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:25,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:25,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 23] total 41 [2023-11-12 02:24:25,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323603849] [2023-11-12 02:24:25,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:25,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-12 02:24:25,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-12 02:24:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1471, Unknown=0, NotChecked=0, Total=1640 [2023-11-12 02:24:25,283 INFO L87 Difference]: Start difference. First operand 1113 states and 1554 transitions. Second operand has 41 states, 39 states have (on average 3.769230769230769) internal successors, (147), 36 states have internal predecessors, (147), 18 states have call successors, (25), 4 states have call predecessors, (25), 16 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) [2023-11-12 02:24:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:26,537 INFO L93 Difference]: Finished difference Result 1849 states and 2775 transitions. [2023-11-12 02:24:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-12 02:24:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 3.769230769230769) internal successors, (147), 36 states have internal predecessors, (147), 18 states have call successors, (25), 4 states have call predecessors, (25), 16 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) Word has length 181 [2023-11-12 02:24:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:26,551 INFO L225 Difference]: With dead ends: 1849 [2023-11-12 02:24:26,552 INFO L226 Difference]: Without dead ends: 1296 [2023-11-12 02:24:26,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 365 SyntacticMatches, 8 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=663, Invalid=4029, Unknown=0, NotChecked=0, Total=4692 [2023-11-12 02:24:26,558 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 392 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:26,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 187 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-12 02:24:26,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-11-12 02:24:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1230. [2023-11-12 02:24:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 953 states have (on average 1.0409233997901364) internal successors, (992), 929 states have internal predecessors, (992), 142 states have call successors, (142), 94 states have call predecessors, (142), 133 states have return successors, (660), 206 states have call predecessors, (660), 131 states have call successors, (660) [2023-11-12 02:24:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1794 transitions. [2023-11-12 02:24:26,694 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1794 transitions. Word has length 181 [2023-11-12 02:24:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:26,695 INFO L495 AbstractCegarLoop]: Abstraction has 1230 states and 1794 transitions. [2023-11-12 02:24:26,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 3.769230769230769) internal successors, (147), 36 states have internal predecessors, (147), 18 states have call successors, (25), 4 states have call predecessors, (25), 16 states have return successors, (30), 17 states have call predecessors, (30), 16 states have call successors, (30) [2023-11-12 02:24:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1794 transitions. [2023-11-12 02:24:26,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-12 02:24:26,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:26,703 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2023-11-12 02:24:26,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:26,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:26,909 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:26,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:26,910 INFO L85 PathProgramCache]: Analyzing trace with hash -515525282, now seen corresponding path program 4 times [2023-11-12 02:24:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:26,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849107009] [2023-11-12 02:24:26,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:26,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:29,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849107009] [2023-11-12 02:24:29,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849107009] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:24:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674468634] [2023-11-12 02:24:29,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:24:29,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:29,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:29,795 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:24:29,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-12 02:24:29,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:24:29,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:24:29,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 93 conjunts are in the unsatisfiable core [2023-11-12 02:24:29,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:24:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:30,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:24:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674468634] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:24:32,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:24:32,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2023-11-12 02:24:32,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461697310] [2023-11-12 02:24:32,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:24:32,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-12 02:24:32,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:32,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-12 02:24:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2023-11-12 02:24:32,671 INFO L87 Difference]: Start difference. First operand 1230 states and 1794 transitions. Second operand has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:39,314 INFO L93 Difference]: Finished difference Result 5679 states and 9178 transitions. [2023-11-12 02:24:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-12 02:24:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2023-11-12 02:24:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:39,380 INFO L225 Difference]: With dead ends: 5679 [2023-11-12 02:24:39,380 INFO L226 Difference]: Without dead ends: 5678 [2023-11-12 02:24:39,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4408 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5642, Invalid=14380, Unknown=0, NotChecked=0, Total=20022 [2023-11-12 02:24:39,398 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 1288 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1288 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:39,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1288 Valid, 1035 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 02:24:39,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2023-11-12 02:24:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 2262. [2023-11-12 02:24:39,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1697 states have (on average 1.0371243370654095) internal successors, (1760), 1649 states have internal predecessors, (1760), 310 states have call successors, (310), 190 states have call predecessors, (310), 253 states have return successors, (3468), 422 states have call predecessors, (3468), 287 states have call successors, (3468) [2023-11-12 02:24:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 5538 transitions. [2023-11-12 02:24:39,841 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 5538 transitions. Word has length 162 [2023-11-12 02:24:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:39,842 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 5538 transitions. [2023-11-12 02:24:39,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.957894736842105) internal successors, (281), 96 states have internal predecessors, (281), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 5538 transitions. [2023-11-12 02:24:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-12 02:24:39,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:39,885 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2023-11-12 02:24:39,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-12 02:24:40,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f37df36-9bb8-4239-b69c-8699cd330104/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:24:40,091 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [applyHanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, applyHanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-12 02:24:40,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash 727783902, now seen corresponding path program 5 times [2023-11-12 02:24:40,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:40,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341490039] [2023-11-12 02:24:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat