./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83bed6e49bdb654de8fe1de7185cbf6d5882b20900f65bc5284ec8c205f21415 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:09:50,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:09:50,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:09:50,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:09:50,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:09:50,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:09:50,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:09:50,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:09:50,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:09:50,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:09:50,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:09:50,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:09:50,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:09:50,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:09:50,164 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:09:50,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:09:50,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:09:50,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:09:50,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:09:50,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:09:50,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:09:50,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:09:50,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:09:50,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:09:50,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:09:50,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:09:50,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:09:50,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:09:50,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:09:50,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:09:50,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:09:50,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:09:50,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:09:50,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:09:50,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:09:50,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:09:50,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:09:50,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:09:50,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:09:50,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:09:50,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:09:50,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:09:50,170 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:/storage/repos/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83bed6e49bdb654de8fe1de7185cbf6d5882b20900f65bc5284ec8c205f21415 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:09:50,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:09:50,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:09:50,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:09:50,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:09:50,434 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:09:50,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c [2024-09-12 19:09:51,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:09:51,760 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:09:51,761 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c [2024-09-12 19:09:51,766 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a3ee0e3e6/8bf3269e725f40819611b217cad74200/FLAGd9ad4f656 [2024-09-12 19:09:51,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a3ee0e3e6/8bf3269e725f40819611b217cad74200 [2024-09-12 19:09:51,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:09:51,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:09:51,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:09:51,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:09:51,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:09:51,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:51,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e792bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51, skipping insertion in model container [2024-09-12 19:09:51,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:51,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:09:51,931 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c[525,538] [2024-09-12 19:09:51,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:09:51,963 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:09:51,971 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound100.c[525,538] [2024-09-12 19:09:51,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:09:51,992 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:09:51,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51 WrapperNode [2024-09-12 19:09:51,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:09:51,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:09:51,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:09:51,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:09:51,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,009 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:09:52,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:09:52,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:09:52,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:09:52,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:09:52,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,039 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:09:52,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:09:52,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:09:52,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:09:52,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:09:52,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (1/1) ... [2024-09-12 19:09:52,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:09:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:52,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:09:52,096 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:09:52,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:09:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:09:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:09:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:09:52,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:09:52,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:09:52,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:09:52,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:09:52,178 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:09:52,180 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:09:52,341 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-12 19:09:52,345 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:09:52,368 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:09:52,369 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:09:52,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:09:52 BoogieIcfgContainer [2024-09-12 19:09:52,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:09:52,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:09:52,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:09:52,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:09:52,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:09:51" (1/3) ... [2024-09-12 19:09:52,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f2407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:09:52, skipping insertion in model container [2024-09-12 19:09:52,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:09:51" (2/3) ... [2024-09-12 19:09:52,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f2407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:09:52, skipping insertion in model container [2024-09-12 19:09:52,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:09:52" (3/3) ... [2024-09-12 19:09:52,379 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound100.c [2024-09-12 19:09:52,393 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:09:52,393 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-12 19:09:52,447 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:09:52,453 INFO L336 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6e4052e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:09:52,454 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-12 19:09:52,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:09:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-12 19:09:52,464 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:52,465 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-12 19:09:52,465 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:52,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:52,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2009622645, now seen corresponding path program 1 times [2024-09-12 19:09:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065969354] [2024-09-12 19:09:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:09:52,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482357697] [2024-09-12 19:09:52,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:52,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:52,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:52,567 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:09:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:52,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:09:52,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:52,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:09:52,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:52,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065969354] [2024-09-12 19:09:52,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:09:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482357697] [2024-09-12 19:09:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482357697] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:09:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:09:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:09:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216854778] [2024-09-12 19:09:52,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:09:52,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:09:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:09:52,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:09:52,731 INFO L87 Difference]: Start difference. First operand has 28 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:52,763 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-09-12 19:09:52,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:09:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 6 [2024-09-12 19:09:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:52,770 INFO L225 Difference]: With dead ends: 47 [2024-09-12 19:09:52,770 INFO L226 Difference]: Without dead ends: 22 [2024-09-12 19:09:52,772 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:09:52,775 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:52,775 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 35 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:09:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-12 19:09:52,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-12 19:09:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:52,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-09-12 19:09:52,803 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 6 [2024-09-12 19:09:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:52,803 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-09-12 19:09:52,803 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:52,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-09-12 19:09:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 19:09:52,804 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:52,804 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:52,819 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 19:09:53,008 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-09-12 19:09:53,009 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:53,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:53,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1119039362, now seen corresponding path program 1 times [2024-09-12 19:09:53,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:53,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191666372] [2024-09-12 19:09:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:53,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:09:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:53,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191666372] [2024-09-12 19:09:53,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191666372] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:09:53,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:09:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:09:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558981161] [2024-09-12 19:09:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:09:53,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:09:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:09:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:09:53,163 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:53,229 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2024-09-12 19:09:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:09:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 19:09:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:53,230 INFO L225 Difference]: With dead ends: 35 [2024-09-12 19:09:53,230 INFO L226 Difference]: Without dead ends: 26 [2024-09-12 19:09:53,231 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:09:53,232 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:53,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:09:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-09-12 19:09:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-09-12 19:09:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-09-12 19:09:53,239 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 9 [2024-09-12 19:09:53,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:53,240 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-09-12 19:09:53,240 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:53,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-09-12 19:09:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:09:53,241 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:53,241 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:53,241 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:09:53,241 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:53,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:53,242 INFO L85 PathProgramCache]: Analyzing trace with hash 45828087, now seen corresponding path program 1 times [2024-09-12 19:09:53,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:53,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507443482] [2024-09-12 19:09:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:53,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:09:53,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762008810] [2024-09-12 19:09:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:53,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:53,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:53,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:53,275 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:09:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:09:53,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:53,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:53,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:09:53,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:53,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507443482] [2024-09-12 19:09:53,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:09:53,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762008810] [2024-09-12 19:09:53,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762008810] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:09:53,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:09:53,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:09:53,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030407095] [2024-09-12 19:09:53,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:09:53,487 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:09:53,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:53,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:09:53,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:09:53,488 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:53,545 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-09-12 19:09:53,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:09:53,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 19:09:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:53,546 INFO L225 Difference]: With dead ends: 35 [2024-09-12 19:09:53,546 INFO L226 Difference]: Without dead ends: 32 [2024-09-12 19:09:53,546 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:09:53,547 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:53,548 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 83 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:09:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-12 19:09:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-12 19:09:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:09:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-09-12 19:09:53,561 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 15 [2024-09-12 19:09:53,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:53,562 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-09-12 19:09:53,562 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:09:53,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:53,562 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-09-12 19:09:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-09-12 19:09:53,563 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:53,563 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:53,576 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:09:53,763 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:53,764 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:53,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:53,764 INFO L85 PathProgramCache]: Analyzing trace with hash 742340353, now seen corresponding path program 1 times [2024-09-12 19:09:53,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:53,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271790551] [2024-09-12 19:09:53,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:09:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:09:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:53,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271790551] [2024-09-12 19:09:53,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271790551] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:09:53,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358522326] [2024-09-12 19:09:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:53,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:53,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:53,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:53,945 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:09:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:53,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:09:53,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:54,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:09:54,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358522326] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:09:54,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:09:54,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-12 19:09:54,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604232661] [2024-09-12 19:09:54,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:09:54,027 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:09:54,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:54,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:09:54,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:09:54,028 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:54,059 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2024-09-12 19:09:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:09:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-09-12 19:09:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:54,060 INFO L225 Difference]: With dead ends: 32 [2024-09-12 19:09:54,060 INFO L226 Difference]: Without dead ends: 31 [2024-09-12 19:09:54,061 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:09:54,061 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:54,062 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:09:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-09-12 19:09:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-09-12 19:09:54,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:09:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-09-12 19:09:54,072 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 19 [2024-09-12 19:09:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:54,072 INFO L474 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-09-12 19:09:54,073 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:54,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:54,073 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-09-12 19:09:54,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-09-12 19:09:54,078 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:54,078 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:54,090 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:09:54,278 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:54,279 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:54,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1537714511, now seen corresponding path program 1 times [2024-09-12 19:09:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:54,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969130247] [2024-09-12 19:09:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:54,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:09:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:09:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:54,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:54,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969130247] [2024-09-12 19:09:54,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969130247] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:09:54,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041991718] [2024-09-12 19:09:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:54,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:54,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:54,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:54,386 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:09:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:09:54,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:54,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:09:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041991718] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:09:54,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:09:54,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-09-12 19:09:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487021147] [2024-09-12 19:09:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:09:54,463 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:09:54,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:54,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:09:54,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:09:54,464 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:54,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:54,575 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2024-09-12 19:09:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:09:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-09-12 19:09:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:54,576 INFO L225 Difference]: With dead ends: 38 [2024-09-12 19:09:54,576 INFO L226 Difference]: Without dead ends: 35 [2024-09-12 19:09:54,576 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:09:54,577 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:54,577 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:09:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-09-12 19:09:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-09-12 19:09:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:09:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-09-12 19:09:54,589 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 20 [2024-09-12 19:09:54,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:54,590 INFO L474 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-09-12 19:09:54,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:09:54,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-09-12 19:09:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:09:54,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:54,593 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:54,610 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:09:54,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:54,793 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:54,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1048692234, now seen corresponding path program 1 times [2024-09-12 19:09:54,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:54,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156883236] [2024-09-12 19:09:54,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:09:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:09:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:54,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:09:54,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156883236] [2024-09-12 19:09:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156883236] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:09:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229952107] [2024-09-12 19:09:54,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:54,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:54,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:54,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:54,892 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:09:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:54,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:09:54,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:54,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:54,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:09:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:55,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229952107] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:09:55,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:09:55,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2024-09-12 19:09:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543589580] [2024-09-12 19:09:55,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:09:55,044 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:09:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:09:55,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:09:55,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:09:55,045 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:09:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:09:55,225 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2024-09-12 19:09:55,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:09:55,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 25 [2024-09-12 19:09:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:09:55,226 INFO L225 Difference]: With dead ends: 68 [2024-09-12 19:09:55,226 INFO L226 Difference]: Without dead ends: 63 [2024-09-12 19:09:55,227 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:09:55,227 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 63 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:09:55,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 39 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:09:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-09-12 19:09:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-09-12 19:09:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 46 states have internal predecessors, (50), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:09:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2024-09-12 19:09:55,259 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 25 [2024-09-12 19:09:55,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:09:55,259 INFO L474 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2024-09-12 19:09:55,259 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 7 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:09:55,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2024-09-12 19:09:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:09:55,261 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:09:55,261 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:09:55,275 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:09:55,461 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:09:55,462 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:09:55,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:09:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1046904774, now seen corresponding path program 1 times [2024-09-12 19:09:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:09:55,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396392184] [2024-09-12 19:09:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:09:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:09:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779456406] [2024-09-12 19:09:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:09:55,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:09:55,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:09:55,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:09:55,478 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:09:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:09:55,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:09:55,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:09:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:09:56,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:10:12,882 WARN L876 $PredicateComparison]: unable to prove that (or (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* c_main_~a~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0 c_main_~z~0)) 18446744073709551616) 0) (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~az~0) (* 18446744073709551615 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0))) is different from true [2024-09-12 19:11:01,760 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:11:05,771 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~a~0 c_main_~z~0))) (or (not (= (mod (+ (* c_main_~x~0 c_main_~z~0) (* 18446744073709551615 c_main_~x~0) (* 18446744073709551615 c_main_~y~0 c_main_~a~0 c_main_~z~0) c_main_~a~0) 18446744073709551616) 0)) (< 9223372036854775807 .cse0) (= (mod (+ (* c_main_~x~0 c_main_~z~0 c_main_~z~0) (* 18446744073709551615 c_main_~y~0 c_main_~a~0 c_main_~z~0 c_main_~z~0) .cse0 (* 18446744073709551615 c_main_~x~0 c_main_~z~0)) 18446744073709551616) 0))) is different from true [2024-09-12 19:11:13,791 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:11:29,818 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:11:33,832 WARN L876 $PredicateComparison]: unable to prove that (forall ((main_~z~0 Int)) (let ((.cse0 (* main_~z~0 c_main_~a~0))) (or (not (= (mod (+ (* 18446744073709551615 main_~z~0 c_main_~y~0 c_main_~a~0) (* 18446744073709551615 c_main_~x~0) (* main_~z~0 c_main_~x~0) c_main_~a~0) 18446744073709551616) 0)) (< 9223372036854775807 .cse0) (< (+ .cse0 9223372036854775808) 0) (= (mod (+ (* main_~z~0 main_~z~0 c_main_~x~0) .cse0 (* 18446744073709551615 main_~z~0 c_main_~x~0) (* 18446744073709551615 main_~z~0 main_~z~0 c_main_~y~0 c_main_~a~0)) 18446744073709551616) 0)))) is different from true [2024-09-12 19:11:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-09-12 19:11:33,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:11:33,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396392184] [2024-09-12 19:11:33,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:11:33,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779456406] [2024-09-12 19:11:33,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779456406] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:11:33,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:11:33,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 16 [2024-09-12 19:11:33,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832830187] [2024-09-12 19:11:33,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:11:33,853 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:11:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:11:33,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:11:33,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=124, Unknown=4, NotChecked=72, Total=240 [2024-09-12 19:11:33,854 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 16 states, 16 states have (on average 2.0625) internal successors, (33), 14 states have internal predecessors, (33), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:11:42,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:11:46,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:11:50,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:11:54,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:11:58,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:02,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:06,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:10,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:14,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:18,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:12:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:18,412 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2024-09-12 19:12:18,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:12:18,412 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 14 states have internal predecessors, (33), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-09-12 19:12:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:18,414 INFO L225 Difference]: With dead ends: 66 [2024-09-12 19:12:18,414 INFO L226 Difference]: Without dead ends: 61 [2024-09-12 19:12:18,414 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=53, Invalid=165, Unknown=4, NotChecked=84, Total=306 [2024-09-12 19:12:18,415 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 10 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 164 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:18,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 159 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 94 Invalid, 10 Unknown, 164 Unchecked, 40.3s Time] [2024-09-12 19:12:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-09-12 19:12:18,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-09-12 19:12:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 47 states have internal predecessors, (48), 8 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:18,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2024-09-12 19:12:18,434 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 25 [2024-09-12 19:12:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:18,434 INFO L474 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2024-09-12 19:12:18,434 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 14 states have internal predecessors, (33), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:12:18,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2024-09-12 19:12:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:12:18,437 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:18,437 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:18,447 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:12:18,641 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:18,642 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:12:18,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1299950529, now seen corresponding path program 2 times [2024-09-12 19:12:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:18,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151618035] [2024-09-12 19:12:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:18,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:12:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-09-12 19:12:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:12:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:12:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:18,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151618035] [2024-09-12 19:12:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151618035] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:18,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377956890] [2024-09-12 19:12:18,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:12:18,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:18,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:18,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:18,882 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:12:18,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:12:18,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:12:18,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:12:18,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 8 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:12:19,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:12:19,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377956890] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:12:19,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:12:19,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 26 [2024-09-12 19:12:19,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504776911] [2024-09-12 19:12:19,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:19,254 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:12:19,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:19,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:12:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:12:19,255 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 25 states have internal predecessors, (82), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 19:12:19,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:19,822 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2024-09-12 19:12:19,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 19:12:19,822 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 25 states have internal predecessors, (82), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) Word has length 55 [2024-09-12 19:12:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:19,823 INFO L225 Difference]: With dead ends: 131 [2024-09-12 19:12:19,823 INFO L226 Difference]: Without dead ends: 126 [2024-09-12 19:12:19,824 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2024-09-12 19:12:19,824 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 167 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:19,825 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 58 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-09-12 19:12:19,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2024-09-12 19:12:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 91 states have (on average 1.0769230769230769) internal successors, (98), 91 states have internal predecessors, (98), 13 states have call successors, (13), 13 states have call predecessors, (13), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:12:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 122 transitions. [2024-09-12 19:12:19,847 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 122 transitions. Word has length 55 [2024-09-12 19:12:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:19,848 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 122 transitions. [2024-09-12 19:12:19,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.1538461538461537) internal successors, (82), 25 states have internal predecessors, (82), 13 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 19:12:19,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 122 transitions. [2024-09-12 19:12:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:12:19,849 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:19,849 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:19,861 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:12:20,052 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:20,053 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2024-09-12 19:12:20,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1298163069, now seen corresponding path program 2 times [2024-09-12 19:12:20,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:20,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161945760] [2024-09-12 19:12:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:20,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:20,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1878656551] [2024-09-12 19:12:20,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:12:20,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:20,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:20,099 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:20,100 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:12:22,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:12:22,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:12:22,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 19:12:22,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:23,434 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:12:23,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:29,229 WARN L293 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:13:49,348 WARN L293 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:14:39,041 WARN L293 SmtUtils]: Spent 40.27s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)