./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.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_valuebound2.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 a8cbadc91a04c54d3edeab185746e7079308438831f961005daba56edf159b5c --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 19:12:29,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:12:30,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:12:30,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:12:30,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:12:30,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:12:30,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:12:30,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:12:30,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:12:30,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:12:30,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:12:30,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:12:30,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:12:30,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:12:30,079 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:12:30,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:12:30,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:12:30,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:12:30,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:12:30,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:12:30,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:12:30,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:12:30,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:12:30,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:12:30,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:12:30,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:12:30,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:12:30,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:12:30,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:12:30,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:12:30,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:12:30,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:12:30,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:12:30,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:12:30,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:12:30,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:12:30,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:12:30,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:12:30,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:12:30,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:12:30,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:12:30,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:12:30,092 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8cbadc91a04c54d3edeab185746e7079308438831f961005daba56edf159b5c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:12:30,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:12:30,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:12:30,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:12:30,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:12:30,441 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:12:30,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2024-09-12 19:12:31,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:12:32,150 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:12:32,150 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound2.c [2024-09-12 19:12:32,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/8b2db0e3a/3e77cde6df14455d92a158399c387470/FLAG73387e417 [2024-09-12 19:12:32,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/8b2db0e3a/3e77cde6df14455d92a158399c387470 [2024-09-12 19:12:32,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:12:32,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:12:32,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:12:32,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:12:32,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:12:32,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c527d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32, skipping insertion in model container [2024-09-12 19:12:32,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:12:32,716 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_valuebound2.c[525,538] [2024-09-12 19:12:32,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:12:32,741 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:12:32,752 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_valuebound2.c[525,538] [2024-09-12 19:12:32,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:12:32,772 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:12:32,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32 WrapperNode [2024-09-12 19:12:32,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:12:32,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:12:32,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:12:32,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:12:32,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,798 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:12:32,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:12:32,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:12:32,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:12:32,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:12:32,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,820 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 19:12:32,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:12:32,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:12:32,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:12:32,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:12:32,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (1/1) ... [2024-09-12 19:12:32,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:12:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:32,868 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 19:12:32,876 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 19:12:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:12:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:12:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:12:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:12:32,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:12:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:12:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:12:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:12:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:12:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:12:32,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:12:32,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:12:32,986 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:12:32,988 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:12:33,402 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-09-12 19:12:33,402 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:12:33,427 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:12:33,427 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:12:33,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:12:33 BoogieIcfgContainer [2024-09-12 19:12:33,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:12:33,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:12:33,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:12:33,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:12:33,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:12:32" (1/3) ... [2024-09-12 19:12:33,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f88696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:12:33, skipping insertion in model container [2024-09-12 19:12:33,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:12:32" (2/3) ... [2024-09-12 19:12:33,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f88696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:12:33, skipping insertion in model container [2024-09-12 19:12:33,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:12:33" (3/3) ... [2024-09-12 19:12:33,436 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound2.c [2024-09-12 19:12:33,452 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:12:33,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-09-12 19:12:33,510 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:12:33,515 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;@7e35ad3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:12:33,515 INFO L337 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-09-12 19:12:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 46 states have (on average 1.7826086956521738) internal successors, (82), 77 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:12:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:12:33,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:33,525 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:33,525 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:33,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:33,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1329720400, now seen corresponding path program 1 times [2024-09-12 19:12:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:33,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591306632] [2024-09-12 19:12:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:33,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,698 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,704 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:33,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:33,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591306632] [2024-09-12 19:12:33,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591306632] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:33,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:33,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:12:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124446318] [2024-09-12 19:12:33,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:33,711 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:12:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:33,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:12:33,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:12:33,748 INFO L87 Difference]: Start difference. First operand has 89 states, 46 states have (on average 1.7826086956521738) internal successors, (82), 77 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:12:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:33,792 INFO L93 Difference]: Finished difference Result 172 states and 190 transitions. [2024-09-12 19:12:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:12:33,794 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 19:12:33,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:33,801 INFO L225 Difference]: With dead ends: 172 [2024-09-12 19:12:33,801 INFO L226 Difference]: Without dead ends: 85 [2024-09-12 19:12:33,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:12:33,808 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:33,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:12:33,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-09-12 19:12:33,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-09-12 19:12:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 75 states have internal predecessors, (76), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:33,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2024-09-12 19:12:33,848 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 24 [2024-09-12 19:12:33,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:33,848 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2024-09-12 19:12:33,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:12:33,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2024-09-12 19:12:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:12:33,851 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:33,851 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:33,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:12:33,852 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:33,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:33,852 INFO L85 PathProgramCache]: Analyzing trace with hash 444284118, now seen corresponding path program 1 times [2024-09-12 19:12:33,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:33,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247349804] [2024-09-12 19:12:33,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:33,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:33,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300531977] [2024-09-12 19:12:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:33,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:33,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:33,898 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 19:12:33,901 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 19:12:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:33,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:12:33,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:34,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:34,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:34,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247349804] [2024-09-12 19:12:34,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:34,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300531977] [2024-09-12 19:12:34,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300531977] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:34,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:12:34,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969936062] [2024-09-12 19:12:34,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:34,250 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:12:34,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:34,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:12:34,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:12:34,251 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:34,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:34,475 INFO L93 Difference]: Finished difference Result 85 states and 88 transitions. [2024-09-12 19:12:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:12:34,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2024-09-12 19:12:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:34,477 INFO L225 Difference]: With dead ends: 85 [2024-09-12 19:12:34,477 INFO L226 Difference]: Without dead ends: 83 [2024-09-12 19:12:34,477 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:12:34,478 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 39 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:34,479 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 123 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-09-12 19:12:34,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-09-12 19:12:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 73 states have internal predecessors, (74), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2024-09-12 19:12:34,503 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 24 [2024-09-12 19:12:34,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:34,505 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2024-09-12 19:12:34,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:34,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2024-09-12 19:12:34,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:12:34,509 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:34,509 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:34,527 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 19:12:34,710 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:34,710 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:34,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:34,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1420994015, now seen corresponding path program 1 times [2024-09-12 19:12:34,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:34,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363802055] [2024-09-12 19:12:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:34,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618891320] [2024-09-12 19:12:34,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:34,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:34,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:34,732 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 19:12:34,737 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 19:12:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:34,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:12:34,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:34,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:34,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:34,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363802055] [2024-09-12 19:12:34,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618891320] [2024-09-12 19:12:34,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618891320] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:34,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:34,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:12:34,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174655084] [2024-09-12 19:12:34,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:34,993 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:12:34,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:34,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:12:34,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:12:34,995 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:35,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:35,287 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2024-09-12 19:12:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2024-09-12 19:12:35,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:35,289 INFO L225 Difference]: With dead ends: 83 [2024-09-12 19:12:35,289 INFO L226 Difference]: Without dead ends: 79 [2024-09-12 19:12:35,289 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:12:35,290 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 75 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:35,290 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 125 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-09-12 19:12:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-09-12 19:12:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 69 states have internal predecessors, (70), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:12:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2024-09-12 19:12:35,304 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 27 [2024-09-12 19:12:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:35,305 INFO L474 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2024-09-12 19:12:35,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:35,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2024-09-12 19:12:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:12:35,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:35,306 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:35,320 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:12:35,510 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 19:12:35,510 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:35,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1101141439, now seen corresponding path program 1 times [2024-09-12 19:12:35,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:35,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885570719] [2024-09-12 19:12:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:35,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:35,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466025183] [2024-09-12 19:12:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:35,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:35,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:35,542 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 19:12:35,544 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 19:12:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:35,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:12:35,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:35,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:36,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:36,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885570719] [2024-09-12 19:12:36,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:36,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466025183] [2024-09-12 19:12:36,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466025183] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:36,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:36,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:12:36,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343469687] [2024-09-12 19:12:36,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:36,108 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:12:36,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:36,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:12:36,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:12:36,109 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:36,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:36,439 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-09-12 19:12:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:36,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2024-09-12 19:12:36,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:36,441 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:12:36,441 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:12:36,442 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:12:36,443 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 145 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:36,444 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 140 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:36,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:12:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 100. [2024-09-12 19:12:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 64 states have (on average 1.578125) internal successors, (101), 89 states have internal predecessors, (101), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:36,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2024-09-12 19:12:36,474 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 28 [2024-09-12 19:12:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:36,474 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2024-09-12 19:12:36,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:36,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2024-09-12 19:12:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:12:36,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:36,477 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:36,494 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 19:12:36,677 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 19:12:36,678 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:36,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:36,678 INFO L85 PathProgramCache]: Analyzing trace with hash 224353827, now seen corresponding path program 1 times [2024-09-12 19:12:36,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:36,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623759719] [2024-09-12 19:12:36,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:36,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:36,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347815050] [2024-09-12 19:12:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:36,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:36,703 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 19:12:36,705 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 19:12:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:36,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:12:36,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:36,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:36,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:36,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623759719] [2024-09-12 19:12:36,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:36,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347815050] [2024-09-12 19:12:36,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347815050] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:36,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:36,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:12:36,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913982140] [2024-09-12 19:12:36,980 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:36,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:12:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:36,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:12:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:12:36,992 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:37,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:37,265 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2024-09-12 19:12:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:12:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-09-12 19:12:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:37,267 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:12:37,269 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:12:37,269 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:12:37,270 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 209 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:37,274 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 125 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:37,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:12:37,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 103. [2024-09-12 19:12:37,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.537313432835821) internal successors, (103), 92 states have internal predecessors, (103), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:37,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2024-09-12 19:12:37,297 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 29 [2024-09-12 19:12:37,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:37,299 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2024-09-12 19:12:37,301 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:12:37,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:37,301 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2024-09-12 19:12:37,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 19:12:37,302 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:37,302 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:37,320 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:12:37,502 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 19:12:37,503 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:37,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1634965885, now seen corresponding path program 1 times [2024-09-12 19:12:37,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:37,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857538739] [2024-09-12 19:12:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:37,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:37,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857538739] [2024-09-12 19:12:37,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857538739] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745740302] [2024-09-12 19:12:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:37,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:37,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:37,806 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 19:12:37,808 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 19:12:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:37,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:12:37,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:38,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:49,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745740302] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:49,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:12:49,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-09-12 19:12:49,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272257028] [2024-09-12 19:12:49,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:49,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:12:49,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:12:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=79, Unknown=5, NotChecked=0, Total=110 [2024-09-12 19:12:49,221 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:12:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:49,858 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2024-09-12 19:12:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:12:49,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2024-09-12 19:12:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:49,860 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:12:49,860 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:12:49,860 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=50, Invalid=127, Unknown=5, NotChecked=0, Total=182 [2024-09-12 19:12:49,861 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 142 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:49,862 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 230 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:12:49,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:12:49,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2024-09-12 19:12:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.492537313432836) internal successors, (100), 91 states have internal predecessors, (100), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2024-09-12 19:12:49,879 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 30 [2024-09-12 19:12:49,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:49,879 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2024-09-12 19:12:49,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:12:49,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:49,880 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2024-09-12 19:12:49,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:12:49,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:49,881 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:49,895 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:12:50,081 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 19:12:50,082 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:50,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:50,082 INFO L85 PathProgramCache]: Analyzing trace with hash 755817157, now seen corresponding path program 1 times [2024-09-12 19:12:50,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:50,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323408979] [2024-09-12 19:12:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:50,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:50,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:50,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323408979] [2024-09-12 19:12:50,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323408979] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:50,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:50,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:50,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902790996] [2024-09-12 19:12:50,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:50,189 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:50,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:50,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:50,191 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:50,523 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2024-09-12 19:12:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:12:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-09-12 19:12:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:50,525 INFO L225 Difference]: With dead ends: 115 [2024-09-12 19:12:50,525 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:12:50,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:12:50,526 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 87 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:50,526 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 108 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:12:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-09-12 19:12:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 67 states have (on average 1.462686567164179) internal successors, (98), 90 states have internal predecessors, (98), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2024-09-12 19:12:50,545 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 32 [2024-09-12 19:12:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:50,545 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2024-09-12 19:12:50,548 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:50,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2024-09-12 19:12:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 19:12:50,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:50,549 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:50,549 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:12:50,550 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:50,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1955495463, now seen corresponding path program 1 times [2024-09-12 19:12:50,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:50,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207784511] [2024-09-12 19:12:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:50,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:50,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267933035] [2024-09-12 19:12:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:50,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:50,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:50,566 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 19:12:50,567 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 19:12:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:50,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:12:50,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:50,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:50,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:50,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207784511] [2024-09-12 19:12:50,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:50,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267933035] [2024-09-12 19:12:50,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267933035] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:50,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:50,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:12:50,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585564306] [2024-09-12 19:12:50,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:50,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:12:50,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:50,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:12:50,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:12:50,755 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:51,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:51,140 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2024-09-12 19:12:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:12:51,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-09-12 19:12:51,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:51,142 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:51,142 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:12:51,142 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:12:51,143 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:51,143 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 128 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:51,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:12:51,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2024-09-12 19:12:51,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 69 states have (on average 1.434782608695652) internal successors, (99), 92 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2024-09-12 19:12:51,166 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 33 [2024-09-12 19:12:51,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:51,166 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2024-09-12 19:12:51,167 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:51,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2024-09-12 19:12:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:12:51,168 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:51,168 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:51,188 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 19:12:51,368 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:51,369 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:51,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 490817287, now seen corresponding path program 1 times [2024-09-12 19:12:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176367038] [2024-09-12 19:12:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:51,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181049896] [2024-09-12 19:12:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:51,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:51,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:51,382 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 19:12:51,383 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 19:12:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:51,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:12:51,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:52,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176367038] [2024-09-12 19:12:52,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181049896] [2024-09-12 19:12:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181049896] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:52,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:52,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:52,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431553107] [2024-09-12 19:12:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:52,922 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:52,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-09-12 19:12:52,923 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:54,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:12:55,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:12:55,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:55,508 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2024-09-12 19:12:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-09-12 19:12:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:55,510 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:55,510 INFO L226 Difference]: Without dead ends: 111 [2024-09-12 19:12:55,510 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-09-12 19:12:55,511 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 24 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:55,511 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 173 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 2 Unknown, 0 Unchecked, 2.6s Time] [2024-09-12 19:12:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-09-12 19:12:55,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-09-12 19:12:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 93 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-09-12 19:12:55,531 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 34 [2024-09-12 19:12:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:55,532 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-09-12 19:12:55,532 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:55,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-09-12 19:12:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:12:55,532 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:55,533 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:55,545 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:12:55,733 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:55,733 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:55,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:55,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1964533207, now seen corresponding path program 1 times [2024-09-12 19:12:55,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:55,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131873497] [2024-09-12 19:12:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:55,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760950993] [2024-09-12 19:12:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:55,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:55,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:55,746 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 19:12:55,747 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 19:12:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:55,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:12:55,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:55,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:55,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131873497] [2024-09-12 19:12:55,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760950993] [2024-09-12 19:12:55,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760950993] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:55,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:55,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:55,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995917946] [2024-09-12 19:12:55,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:55,854 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:55,855 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:56,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:56,101 INFO L93 Difference]: Finished difference Result 113 states and 118 transitions. [2024-09-12 19:12:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:56,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-09-12 19:12:56,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:56,102 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:12:56,102 INFO L226 Difference]: Without dead ends: 109 [2024-09-12 19:12:56,102 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:56,103 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:56,103 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 109 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-09-12 19:12:56,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2024-09-12 19:12:56,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.375) internal successors, (99), 95 states have internal predecessors, (99), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 113 transitions. [2024-09-12 19:12:56,125 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 113 transitions. Word has length 35 [2024-09-12 19:12:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:56,125 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 113 transitions. [2024-09-12 19:12:56,126 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:56,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 113 transitions. [2024-09-12 19:12:56,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:12:56,126 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:56,127 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:56,140 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:12:56,327 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:56,327 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:56,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1116337079, now seen corresponding path program 1 times [2024-09-12 19:12:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:56,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117485956] [2024-09-12 19:12:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864233047] [2024-09-12 19:12:56,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:56,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:56,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:56,339 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:56,342 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:12:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:56,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:12:56,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:56,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:56,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:56,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117485956] [2024-09-12 19:12:56,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:56,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864233047] [2024-09-12 19:12:56,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864233047] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:56,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:56,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:12:56,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773482231] [2024-09-12 19:12:56,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:56,496 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:12:56,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:56,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:12:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:12:56,498 INFO L87 Difference]: Start difference. First operand 106 states and 113 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:56,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:56,837 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2024-09-12 19:12:56,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:12:56,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2024-09-12 19:12:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:56,839 INFO L225 Difference]: With dead ends: 115 [2024-09-12 19:12:56,839 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:12:56,839 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 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 19:12:56,840 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:56,840 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 174 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:12:56,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:12:56,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-09-12 19:12:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.4) internal successors, (91), 88 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2024-09-12 19:12:56,863 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 40 [2024-09-12 19:12:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:56,864 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2024-09-12 19:12:56,864 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:12:56,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2024-09-12 19:12:56,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:12:56,866 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:56,867 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:56,883 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:12:57,070 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:12:57,071 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:57,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,071 INFO L85 PathProgramCache]: Analyzing trace with hash 871034181, now seen corresponding path program 1 times [2024-09-12 19:12:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:57,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219186748] [2024-09-12 19:12:57,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:12:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:12:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:12:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:12:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:12:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:57,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219186748] [2024-09-12 19:12:57,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219186748] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:57,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:12:57,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181026289] [2024-09-12 19:12:57,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:57,123 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:12:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:12:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:12:57,124 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:12:57,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:57,157 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2024-09-12 19:12:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:12:57,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-09-12 19:12:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:57,158 INFO L225 Difference]: With dead ends: 102 [2024-09-12 19:12:57,158 INFO L226 Difference]: Without dead ends: 100 [2024-09-12 19:12:57,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 19:12:57,159 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:57,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:12:57,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-09-12 19:12:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-09-12 19:12:57,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 88 states have internal predecessors, (89), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:57,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2024-09-12 19:12:57,177 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 43 [2024-09-12 19:12:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:57,177 INFO L474 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2024-09-12 19:12:57,178 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:12:57,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2024-09-12 19:12:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:12:57,179 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:57,179 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:57,179 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:12:57,179 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:57,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash 631947275, now seen corresponding path program 1 times [2024-09-12 19:12:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:57,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634491838] [2024-09-12 19:12:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:57,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283931708] [2024-09-12 19:12:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:57,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:57,199 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:57,205 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:12:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:12:57,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:57,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:57,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634491838] [2024-09-12 19:12:57,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:57,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283931708] [2024-09-12 19:12:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283931708] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:57,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:57,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:57,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804344916] [2024-09-12 19:12:57,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:57,332 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:57,333 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:12:57,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:57,601 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2024-09-12 19:12:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:57,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 49 [2024-09-12 19:12:57,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:57,603 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:12:57,603 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:12:57,603 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:57,604 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:57,604 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:12:57,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:12:57,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-09-12 19:12:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 89 states have internal predecessors, (90), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 104 transitions. [2024-09-12 19:12:57,624 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 104 transitions. Word has length 49 [2024-09-12 19:12:57,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:57,625 INFO L474 AbstractCegarLoop]: Abstraction has 101 states and 104 transitions. [2024-09-12 19:12:57,625 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:12:57,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 104 transitions. [2024-09-12 19:12:57,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:12:57,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:57,626 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:57,643 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:12:57,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:12:57,827 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:57,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:57,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1884470851, now seen corresponding path program 1 times [2024-09-12 19:12:57,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:57,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147010503] [2024-09-12 19:12:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:57,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681729329] [2024-09-12 19:12:57,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:57,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:57,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:57,846 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:57,848 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:12:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:57,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:12:57,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:12:57,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:12:57,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147010503] [2024-09-12 19:12:57,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681729329] [2024-09-12 19:12:57,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681729329] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:12:57,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:12:57,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:12:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990071184] [2024-09-12 19:12:57,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:12:57,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:12:57,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:12:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:57,978 INFO L87 Difference]: Start difference. First operand 101 states and 104 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:12:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:58,128 INFO L93 Difference]: Finished difference Result 103 states and 106 transitions. [2024-09-12 19:12:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:12:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 50 [2024-09-12 19:12:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:58,129 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:12:58,130 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:12:58,130 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:12:58,130 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 38 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:58,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 78 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:12:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:12:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 19:12:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 90 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:12:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2024-09-12 19:12:58,150 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 50 [2024-09-12 19:12:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:58,150 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2024-09-12 19:12:58,150 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:12:58,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2024-09-12 19:12:58,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:12:58,151 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:58,151 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:58,167 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:12:58,352 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:12:58,353 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:12:58,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash -753534493, now seen corresponding path program 1 times [2024-09-12 19:12:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:12:58,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981358115] [2024-09-12 19:12:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:12:58,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:12:58,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737972341] [2024-09-12 19:12:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:12:58,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:12:58,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:12:58,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:12:58,370 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:12:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:12:58,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:12:58,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:12:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:12:58,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:12:59,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:12:59,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981358115] [2024-09-12 19:12:59,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:12:59,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737972341] [2024-09-12 19:12:59,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737972341] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:12:59,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:12:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:12:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236083434] [2024-09-12 19:12:59,350 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:12:59,350 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:12:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:12:59,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:12:59,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:12:59,351 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:12:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:12:59,788 INFO L93 Difference]: Finished difference Result 142 states and 157 transitions. [2024-09-12 19:12:59,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:12:59,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 53 [2024-09-12 19:12:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:12:59,790 INFO L225 Difference]: With dead ends: 142 [2024-09-12 19:12:59,791 INFO L226 Difference]: Without dead ends: 138 [2024-09-12 19:12:59,791 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:12:59,791 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 107 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:12:59,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 170 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:12:59,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-09-12 19:12:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 123. [2024-09-12 19:12:59,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 110 states have internal predecessors, (122), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:12:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2024-09-12 19:12:59,817 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 53 [2024-09-12 19:12:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:12:59,817 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2024-09-12 19:12:59,817 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:12:59,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:12:59,818 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2024-09-12 19:12:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:12:59,818 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:12:59,818 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:12:59,835 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:13:00,022 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:13:00,023 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:00,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:00,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1884732735, now seen corresponding path program 1 times [2024-09-12 19:13:00,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:00,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458484883] [2024-09-12 19:13:00,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:00,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:00,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080981768] [2024-09-12 19:13:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:00,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:00,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:00,036 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:00,037 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:13:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:00,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:13:00,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:00,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:03,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:03,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458484883] [2024-09-12 19:13:03,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:03,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080981768] [2024-09-12 19:13:03,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080981768] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:03,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:03,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:13:03,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30203578] [2024-09-12 19:13:03,030 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:03,030 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:03,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-09-12 19:13:03,031 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:03,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:03,220 INFO L93 Difference]: Finished difference Result 123 states and 138 transitions. [2024-09-12 19:13:03,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:13:03,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2024-09-12 19:13:03,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:03,222 INFO L225 Difference]: With dead ends: 123 [2024-09-12 19:13:03,222 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 19:13:03,223 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-09-12 19:13:03,223 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 79 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:03,223 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 145 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:03,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 19:13:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-09-12 19:13:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 87 states have (on average 1.367816091954023) internal successors, (119), 108 states have internal predecessors, (119), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2024-09-12 19:13:03,251 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 54 [2024-09-12 19:13:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:03,252 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2024-09-12 19:13:03,252 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:13:03,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2024-09-12 19:13:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:13:03,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:03,253 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:03,270 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:13:03,453 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:13:03,454 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:03,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1702827429, now seen corresponding path program 1 times [2024-09-12 19:13:03,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:03,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094908932] [2024-09-12 19:13:03,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:03,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:03,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650229563] [2024-09-12 19:13:03,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:03,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:03,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:03,470 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:03,475 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:13:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:03,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:13:03,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:04,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:04,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:04,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094908932] [2024-09-12 19:13:04,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:04,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650229563] [2024-09-12 19:13:04,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650229563] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:04,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:04,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:13:04,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960447843] [2024-09-12 19:13:04,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:04,803 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:13:04,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:13:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:13:04,803 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:05,331 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2024-09-12 19:13:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:13:05,331 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 55 [2024-09-12 19:13:05,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:05,332 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:13:05,332 INFO L226 Difference]: Without dead ends: 115 [2024-09-12 19:13:05,333 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:13:05,333 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 157 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:05,333 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 174 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:13:05,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-09-12 19:13:05,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-09-12 19:13:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 100 states have internal predecessors, (108), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:05,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2024-09-12 19:13:05,371 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 55 [2024-09-12 19:13:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:05,371 INFO L474 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2024-09-12 19:13:05,372 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:05,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2024-09-12 19:13:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:13:05,372 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:05,372 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:05,388 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:05,573 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:13:05,573 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:05,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1073275845, now seen corresponding path program 1 times [2024-09-12 19:13:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:05,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228861700] [2024-09-12 19:13:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:05,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:05,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844270021] [2024-09-12 19:13:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:05,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:05,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:05,586 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:05,590 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:13:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:05,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:13:05,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:06,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:06,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228861700] [2024-09-12 19:13:06,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844270021] [2024-09-12 19:13:06,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844270021] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:06,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:06,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:13:06,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569656597] [2024-09-12 19:13:06,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:06,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:13:06,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:13:06,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:13:06,260 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:06,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:06,587 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2024-09-12 19:13:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:13:06,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2024-09-12 19:13:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:06,588 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:13:06,589 INFO L226 Difference]: Without dead ends: 110 [2024-09-12 19:13:06,589 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:13:06,589 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 103 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:06,590 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 131 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:13:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-09-12 19:13:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-09-12 19:13:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 85 states have (on average 1.223529411764706) internal successors, (104), 97 states have internal predecessors, (104), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2024-09-12 19:13:06,632 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 58 [2024-09-12 19:13:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:06,632 INFO L474 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2024-09-12 19:13:06,632 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:06,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2024-09-12 19:13:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:13:06,633 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:06,633 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:06,650 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:06,833 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:13:06,834 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:06,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:06,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1088187095, now seen corresponding path program 1 times [2024-09-12 19:13:06,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:06,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355145716] [2024-09-12 19:13:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:06,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:06,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685106459] [2024-09-12 19:13:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:06,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:06,850 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:06,852 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:13:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:06,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:13:06,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:07,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:09,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:09,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355145716] [2024-09-12 19:13:09,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:09,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685106459] [2024-09-12 19:13:09,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685106459] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:09,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:09,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:13:09,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084693233] [2024-09-12 19:13:09,356 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:09,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:09,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:09,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:09,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:09,357 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:10,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:10,038 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2024-09-12 19:13:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:13:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2024-09-12 19:13:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:10,039 INFO L225 Difference]: With dead ends: 128 [2024-09-12 19:13:10,039 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:13:10,040 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:13:10,040 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 148 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:10,040 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 215 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:13:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:13:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-09-12 19:13:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 95 states have (on average 1.1894736842105262) internal successors, (113), 107 states have internal predecessors, (113), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 129 transitions. [2024-09-12 19:13:10,086 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 129 transitions. Word has length 59 [2024-09-12 19:13:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:10,086 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 129 transitions. [2024-09-12 19:13:10,086 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:10,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 129 transitions. [2024-09-12 19:13:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:13:10,087 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:10,087 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:10,100 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:10,287 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:10,288 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:10,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash 625938503, now seen corresponding path program 1 times [2024-09-12 19:13:10,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:10,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722038280] [2024-09-12 19:13:10,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:10,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655065701] [2024-09-12 19:13:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:10,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:10,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:10,300 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:10,304 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:13:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:10,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:13:10,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:10,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:10,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:10,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722038280] [2024-09-12 19:13:10,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:10,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655065701] [2024-09-12 19:13:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655065701] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:10,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:10,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 19:13:10,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481593754] [2024-09-12 19:13:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:10,965 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:13:10,966 INFO L87 Difference]: Start difference. First operand 120 states and 129 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:13:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:12,553 INFO L93 Difference]: Finished difference Result 120 states and 129 transitions. [2024-09-12 19:13:12,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:13:12,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 60 [2024-09-12 19:13:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:12,554 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:13:12,554 INFO L226 Difference]: Without dead ends: 118 [2024-09-12 19:13:12,555 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:13:12,555 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:12,555 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 177 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:13:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-09-12 19:13:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-09-12 19:13:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.1578947368421053) internal successors, (110), 105 states have internal predecessors, (110), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2024-09-12 19:13:12,618 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 60 [2024-09-12 19:13:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:12,618 INFO L474 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2024-09-12 19:13:12,618 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:13:12,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2024-09-12 19:13:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 19:13:12,619 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:12,619 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:12,637 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:13:12,824 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:12,824 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:12,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2070742805, now seen corresponding path program 1 times [2024-09-12 19:13:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:12,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964050751] [2024-09-12 19:13:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174615158] [2024-09-12 19:13:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:12,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:12,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:12,839 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:12,841 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:13:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:12,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:13:12,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:13:13,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964050751] [2024-09-12 19:13:15,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174615158] [2024-09-12 19:13:15,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174615158] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:15,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:13:15,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217829761] [2024-09-12 19:13:15,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:15,600 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:15,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:15,600 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:16,067 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2024-09-12 19:13:16,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:13:16,067 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-09-12 19:13:16,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:16,068 INFO L225 Difference]: With dead ends: 118 [2024-09-12 19:13:16,068 INFO L226 Difference]: Without dead ends: 116 [2024-09-12 19:13:16,068 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:13:16,069 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 68 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:16,069 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 171 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:13:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-09-12 19:13:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-09-12 19:13:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.1263157894736842) internal successors, (107), 103 states have internal predecessors, (107), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2024-09-12 19:13:16,118 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 61 [2024-09-12 19:13:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:16,118 INFO L474 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2024-09-12 19:13:16,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:13:16,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:16,118 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2024-09-12 19:13:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:13:16,118 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:16,119 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:16,131 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:13:16,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:13:16,319 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:16,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:16,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1618108327, now seen corresponding path program 1 times [2024-09-12 19:13:16,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:16,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421309781] [2024-09-12 19:13:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:16,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:13:16,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050032117] [2024-09-12 19:13:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:16,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:16,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:16,333 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:16,340 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:13:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:16,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:13:16,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:16,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:13:17,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:17,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421309781] [2024-09-12 19:13:17,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:13:17,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050032117] [2024-09-12 19:13:17,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050032117] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:13:17,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:13:17,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2024-09-12 19:13:17,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242040761] [2024-09-12 19:13:17,079 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:17,080 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:13:17,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:17,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:13:17,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:13:17,080 INFO L87 Difference]: Start difference. First operand 116 states and 123 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:13:17,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:17,754 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2024-09-12 19:13:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:13:17,754 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-09-12 19:13:17,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:17,756 INFO L225 Difference]: With dead ends: 121 [2024-09-12 19:13:17,756 INFO L226 Difference]: Without dead ends: 105 [2024-09-12 19:13:17,756 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:13:17,757 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 86 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:17,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 193 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:13:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-09-12 19:13:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2024-09-12 19:13:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 84 states have (on average 1.1071428571428572) internal successors, (93), 90 states have internal predecessors, (93), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2024-09-12 19:13:17,813 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 65 [2024-09-12 19:13:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:17,813 INFO L474 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2024-09-12 19:13:17,813 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:13:17,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2024-09-12 19:13:17,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 19:13:17,814 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:17,814 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:17,830 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:13:18,015 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:13:18,015 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:18,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:18,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1652647267, now seen corresponding path program 1 times [2024-09-12 19:13:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082075033] [2024-09-12 19:13:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:18,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:13:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:18,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082075033] [2024-09-12 19:13:18,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082075033] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:18,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412202779] [2024-09-12 19:13:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:18,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:18,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:18,098 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:18,100 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:13:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:13:18,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:18,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:18,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412202779] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:18,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:18,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:13:18,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727420724] [2024-09-12 19:13:18,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:18,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:13:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:18,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:13:18,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:13:18,176 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:18,231 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2024-09-12 19:13:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:13:18,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-09-12 19:13:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:18,233 INFO L225 Difference]: With dead ends: 103 [2024-09-12 19:13:18,233 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 19:13:18,233 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:13:18,233 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:18,234 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 105 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 19:13:18,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 19:13:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 89 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:13:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2024-09-12 19:13:18,274 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 68 [2024-09-12 19:13:18,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:18,275 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2024-09-12 19:13:18,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:18,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2024-09-12 19:13:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 19:13:18,275 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:18,276 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:18,291 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 19:13:18,476 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:13:18,476 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:18,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash -307542183, now seen corresponding path program 1 times [2024-09-12 19:13:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033909406] [2024-09-12 19:13:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:18,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:13:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:18,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:18,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033909406] [2024-09-12 19:13:18,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033909406] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:18,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733696724] [2024-09-12 19:13:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:18,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:18,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:18,581 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:18,582 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:13:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:18,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:13:18,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:18,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:13:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:13:18,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733696724] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:13:18,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:13:18,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:13:18,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27611399] [2024-09-12 19:13:18,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:13:18,735 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:18,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:18,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:18,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:13:18,736 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:13:18,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:18,816 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2024-09-12 19:13:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:13:18,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 69 [2024-09-12 19:13:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:18,818 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:13:18,818 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:13:18,818 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:13:18,818 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:18,819 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 162 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:13:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2024-09-12 19:13:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.11864406779661) internal successors, (132), 123 states have internal predecessors, (132), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:13:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2024-09-12 19:13:18,884 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 69 [2024-09-12 19:13:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:18,884 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2024-09-12 19:13:18,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:13:18,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2024-09-12 19:13:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 19:13:18,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:13:18,885 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:18,900 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:13:19,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:13:19,086 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 19:13:19,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:19,086 INFO L85 PathProgramCache]: Analyzing trace with hash -456956799, now seen corresponding path program 2 times [2024-09-12 19:13:19,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:13:19,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951455499] [2024-09-12 19:13:19,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:13:19,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:13:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:13:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:13:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:13:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:13:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:13:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:13:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:13:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 20 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:13:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:13:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951455499] [2024-09-12 19:13:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951455499] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:13:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269471189] [2024-09-12 19:13:19,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:13:19,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:13:19,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:13:19,260 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:13:19,261 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:13:19,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:13:19,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:13:19,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:13:19,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:13:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:13:19,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:13:19,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269471189] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:13:19,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:13:19,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2024-09-12 19:13:19,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587677872] [2024-09-12 19:13:19,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:13:19,538 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:13:19,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:13:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:13:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:13:19,539 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:19,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:13:19,606 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2024-09-12 19:13:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:13:19,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2024-09-12 19:13:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:13:19,607 INFO L225 Difference]: With dead ends: 142 [2024-09-12 19:13:19,607 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:13:19,608 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:13:19,608 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:13:19,608 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:13:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:13:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:13:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:13:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:13:19,609 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-09-12 19:13:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:13:19,610 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:13:19,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:13:19,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:13:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:13:19,610 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:13:19,612 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 31 remaining) [2024-09-12 19:13:19,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-09-12 19:13:19,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-09-12 19:13:19,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-09-12 19:13:19,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-09-12 19:13:19,613 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-09-12 19:13:19,614 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-09-12 19:13:19,615 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-09-12 19:13:19,616 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-09-12 19:13:19,617 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-09-12 19:13:19,617 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-09-12 19:13:19,617 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-09-12 19:13:19,617 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 31 remaining) [2024-09-12 19:13:19,623 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:13:19,817 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:13:19,820 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:13:19,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:13:28,851 WARN L293 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 144 DAG size of output: 50 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:13:41,103 WARN L293 SmtUtils]: Spent 11.46s on a formula simplification. DAG size of input: 144 DAG size of output: 50 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:13:49,962 WARN L293 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 152 DAG size of output: 50 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:13:53,137 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:13:53,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:13:53 BoogieIcfgContainer [2024-09-12 19:13:53,158 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:13:53,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:13:53,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:13:53,159 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:13:53,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:12:33" (3/4) ... [2024-09-12 19:13:53,161 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:13:53,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:13:53,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:13:53,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:13:53,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:13:53,169 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-09-12 19:13:53,169 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-12 19:13:53,169 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:13:53,169 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:13:53,245 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:13:53,246 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:13:53,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:13:53,246 INFO L158 Benchmark]: Toolchain (without parser) took 80689.16ms. Allocated memory was 71.3MB in the beginning and 237.0MB in the end (delta: 165.7MB). Free memory was 31.6MB in the beginning and 182.2MB in the end (delta: -150.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,246 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 46.1MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:13:53,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.09ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 41.7MB in the end (delta: -10.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.34ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 40.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:13:53,247 INFO L158 Benchmark]: Boogie Preprocessor took 36.34ms. Allocated memory is still 71.3MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,248 INFO L158 Benchmark]: RCFGBuilder took 592.47ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 42.2MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,248 INFO L158 Benchmark]: TraceAbstraction took 79728.58ms. Allocated memory was 71.3MB in the beginning and 237.0MB in the end (delta: 165.7MB). Free memory was 41.6MB in the beginning and 187.5MB in the end (delta: -145.9MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,248 INFO L158 Benchmark]: Witness Printer took 86.86ms. Allocated memory is still 237.0MB. Free memory was 187.5MB in the beginning and 182.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 19:13:53,250 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 46.1MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.09ms. Allocated memory is still 71.3MB. Free memory was 31.4MB in the beginning and 41.7MB in the end (delta: -10.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.34ms. Allocated memory is still 71.3MB. Free memory was 41.7MB in the beginning and 40.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.34ms. Allocated memory is still 71.3MB. Free memory was 40.6MB in the beginning and 38.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.47ms. Allocated memory is still 71.3MB. Free memory was 38.9MB in the beginning and 42.2MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 79728.58ms. Allocated memory was 71.3MB in the beginning and 237.0MB in the end (delta: 165.7MB). Free memory was 41.6MB in the beginning and 187.5MB in the end (delta: -145.9MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. * Witness Printer took 86.86ms. Allocated memory is still 237.0MB. Free memory was 187.5MB in the beginning and 182.2MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 46.3s, OverallIterations: 25, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1740 SdHoareTripleChecker+Valid, 9.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1724 mSDsluCounter, 3646 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2544 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4589 IncrementalHoareTripleChecker+Invalid, 4686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 1102 mSDtfsCounter, 4589 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1488 GetRequests, 1297 SyntacticMatches, 2 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=24, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 25 MinimizatonAttempts, 102 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 2217 NumberOfCodeBlocks, 2217 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1565 ConstructedInterpolants, 82 QuantifiedInterpolants, 9634 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2223 ConjunctsInSsa, 244 ConjunctsInUnsatCore, 32 InterpolantComputations, 12 PerfectInterpolantSequences, 429/627 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((((0 <= k) && (y == 1)) && (k <= 2)) && (z <= 2)) && (0 <= a)) && (0 <= z)) && (a == x)) && (x <= 2)) && (c == 1)) && (((long long) a * z) == az)) || ((((((((((z == y) && (0 <= k)) && (k <= 2)) && (c == 2)) && (z <= 2)) && (0 <= a)) && (a <= 2)) && (0 <= z)) && (x == (((long long) a * z) + a))) && (((long long) a * z) == az))) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:13:53,338 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE