./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound10.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/ps4-ll_valuebound10.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 53086523abe0dc699ccd28b0916f17f8825d4641577f06835b9d81e9579a444f --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 19:37:36,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:37:36,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:37:36,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:37:36,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:37:36,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:37:36,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:37:36,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:37:36,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:37:36,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:37:36,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:37:36,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:37:36,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:37:36,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:37:36,594 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:37:36,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:37:36,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:37:36,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:37:36,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:37:36,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:37:36,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:37:36,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:37:36,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:37:36,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:37:36,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:37:36,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:37:36,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:37:36,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:37:36,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:37:36,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:37:36,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:37:36,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:37:36,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:37:36,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:37:36,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:37:36,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:37:36,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:37:36,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:37:36,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:37:36,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:37:36,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:37:36,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:37:36,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53086523abe0dc699ccd28b0916f17f8825d4641577f06835b9d81e9579a444f Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:37:36,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:37:36,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:37:36,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:37:36,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:37:36,975 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:37:36,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound10.c [2024-09-12 19:37:38,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:37:38,673 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:37:38,674 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound10.c [2024-09-12 19:37:38,681 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/44c38c439/adee26ba297f4f1a9574cc0bcdfaab74/FLAGa3ba29824 [2024-09-12 19:37:38,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/44c38c439/adee26ba297f4f1a9574cc0bcdfaab74 [2024-09-12 19:37:38,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:37:38,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:37:38,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:37:38,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:37:38,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:37:38,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:38,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cc5208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38, skipping insertion in model container [2024-09-12 19:37:38,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:38,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:37:38,916 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/ps4-ll_valuebound10.c[458,471] [2024-09-12 19:37:38,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:37:38,961 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:37:38,972 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/ps4-ll_valuebound10.c[458,471] [2024-09-12 19:37:38,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:37:38,999 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:37:38,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38 WrapperNode [2024-09-12 19:37:39,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:37:39,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:37:39,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:37:39,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:37:39,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,028 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:37:39,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:37:39,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:37:39,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:37:39,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:37:39,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,061 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 19:37:39,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:37:39,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:37:39,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:37:39,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:37:39,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (1/1) ... [2024-09-12 19:37:39,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:37:39,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:39,116 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 19:37:39,119 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 19:37:39,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:37:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:37:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:37:39,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:37:39,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:37:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:37:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:37:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:37:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:37:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:37:39,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:37:39,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:37:39,226 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:37:39,228 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:37:39,741 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-09-12 19:37:39,743 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:37:39,775 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:37:39,777 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:37:39,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:37:39 BoogieIcfgContainer [2024-09-12 19:37:39,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:37:39,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:37:39,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:37:39,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:37:39,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:37:38" (1/3) ... [2024-09-12 19:37:39,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eba4917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:37:39, skipping insertion in model container [2024-09-12 19:37:39,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:37:38" (2/3) ... [2024-09-12 19:37:39,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eba4917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:37:39, skipping insertion in model container [2024-09-12 19:37:39,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:37:39" (3/3) ... [2024-09-12 19:37:39,788 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound10.c [2024-09-12 19:37:39,805 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:37:39,806 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-09-12 19:37:39,872 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:37:39,879 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;@794f14b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:37:39,880 INFO L337 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-09-12 19:37:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 74 states have (on average 1.8918918918918919) internal successors, (140), 135 states have internal predecessors, (140), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:37:39,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:37:39,893 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:39,894 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:39,895 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:39,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1515741506, now seen corresponding path program 1 times [2024-09-12 19:37:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:39,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435410331] [2024-09-12 19:37:39,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:40,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:40,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435410331] [2024-09-12 19:37:40,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435410331] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:40,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:40,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:37:40,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860809402] [2024-09-12 19:37:40,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:40,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:37:40,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:40,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:37:40,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:37:40,092 INFO L87 Difference]: Start difference. First operand has 146 states, 74 states have (on average 1.8918918918918919) internal successors, (140), 135 states have internal predecessors, (140), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:40,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:40,140 INFO L93 Difference]: Finished difference Result 274 states and 298 transitions. [2024-09-12 19:37:40,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:37:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:37:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:40,152 INFO L225 Difference]: With dead ends: 274 [2024-09-12 19:37:40,153 INFO L226 Difference]: Without dead ends: 132 [2024-09-12 19:37:40,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 19:37:40,164 INFO L434 NwaCegarLoop]: 136 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, 136 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 19:37:40,166 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:37:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-09-12 19:37:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-09-12 19:37:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 72 states have (on average 1.7222222222222223) internal successors, (124), 123 states have internal predecessors, (124), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:37:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 134 transitions. [2024-09-12 19:37:40,215 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 134 transitions. Word has length 13 [2024-09-12 19:37:40,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:40,216 INFO L474 AbstractCegarLoop]: Abstraction has 132 states and 134 transitions. [2024-09-12 19:37:40,216 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:40,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 134 transitions. [2024-09-12 19:37:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 19:37:40,217 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:40,218 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:40,218 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:37:40,218 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:40,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1458485509, now seen corresponding path program 1 times [2024-09-12 19:37:40,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191664281] [2024-09-12 19:37:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:40,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:40,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191664281] [2024-09-12 19:37:40,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191664281] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:40,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:40,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:37:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118852709] [2024-09-12 19:37:40,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:40,346 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:37:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:37:40,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:37:40,349 INFO L87 Difference]: Start difference. First operand 132 states and 134 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:40,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:40,528 INFO L93 Difference]: Finished difference Result 239 states and 252 transitions. [2024-09-12 19:37:40,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:37:40,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 19:37:40,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:40,532 INFO L225 Difference]: With dead ends: 239 [2024-09-12 19:37:40,532 INFO L226 Difference]: Without dead ends: 229 [2024-09-12 19:37:40,532 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 19:37:40,533 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 93 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:40,534 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 202 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:37:40,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-09-12 19:37:40,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 186. [2024-09-12 19:37:40,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 124 states have (on average 1.6774193548387097) internal successors, (208), 175 states have internal predecessors, (208), 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 19:37:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 222 transitions. [2024-09-12 19:37:40,561 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 222 transitions. Word has length 13 [2024-09-12 19:37:40,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:40,562 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 222 transitions. [2024-09-12 19:37:40,562 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:40,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:40,563 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 222 transitions. [2024-09-12 19:37:40,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 19:37:40,563 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:40,563 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:40,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:37:40,564 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:40,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1852574623, now seen corresponding path program 1 times [2024-09-12 19:37:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728804364] [2024-09-12 19:37:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:40,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672718609] [2024-09-12 19:37:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:40,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:40,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:40,585 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 19:37:40,588 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 19:37:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:40,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:37:40,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:40,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:40,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728804364] [2024-09-12 19:37:40,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672718609] [2024-09-12 19:37:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672718609] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:40,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:40,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:37:40,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500670660] [2024-09-12 19:37:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:40,665 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:37:40,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:40,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:37:40,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:37:40,666 INFO L87 Difference]: Start difference. First operand 186 states and 222 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:40,971 INFO L93 Difference]: Finished difference Result 220 states and 231 transitions. [2024-09-12 19:37:40,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:37:40,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-09-12 19:37:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:40,975 INFO L225 Difference]: With dead ends: 220 [2024-09-12 19:37:40,975 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 19:37:40,976 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 19:37:40,977 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 54 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:40,977 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 112 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:37:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 19:37:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2024-09-12 19:37:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 128 states have (on average 1.4765625) internal successors, (189), 179 states have internal predecessors, (189), 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 19:37:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 203 transitions. [2024-09-12 19:37:41,014 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 203 transitions. Word has length 16 [2024-09-12 19:37:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:41,014 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 203 transitions. [2024-09-12 19:37:41,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:41,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 203 transitions. [2024-09-12 19:37:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:37:41,016 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:41,016 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:41,029 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 19:37:41,216 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:41,218 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:41,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:41,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2045741315, now seen corresponding path program 1 times [2024-09-12 19:37:41,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:41,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978911837] [2024-09-12 19:37:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:41,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:41,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:41,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:41,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:41,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978911837] [2024-09-12 19:37:41,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978911837] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:41,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:41,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:37:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577367050] [2024-09-12 19:37:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:41,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:37:41,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:37:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:37:41,344 INFO L87 Difference]: Start difference. First operand 190 states and 203 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:45,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:37:49,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:37:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:49,784 INFO L93 Difference]: Finished difference Result 208 states and 215 transitions. [2024-09-12 19:37:49,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:37:49,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-09-12 19:37:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:49,787 INFO L225 Difference]: With dead ends: 208 [2024-09-12 19:37:49,789 INFO L226 Difference]: Without dead ends: 202 [2024-09-12 19:37:49,790 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 19:37:49,791 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 66 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:49,794 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 197 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2024-09-12 19:37:49,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-09-12 19:37:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 190. [2024-09-12 19:37:49,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 128 states have (on average 1.4296875) internal successors, (183), 179 states have internal predecessors, (183), 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 19:37:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 197 transitions. [2024-09-12 19:37:49,827 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 197 transitions. Word has length 21 [2024-09-12 19:37:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:49,827 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 197 transitions. [2024-09-12 19:37:49,828 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:49,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 197 transitions. [2024-09-12 19:37:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:37:49,829 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:49,829 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:49,829 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:37:49,830 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:49,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash -710205851, now seen corresponding path program 1 times [2024-09-12 19:37:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:49,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596153266] [2024-09-12 19:37:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:49,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867548677] [2024-09-12 19:37:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:49,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:49,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:49,850 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 19:37:49,851 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 19:37:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:49,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:37:49,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:50,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596153266] [2024-09-12 19:37:50,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867548677] [2024-09-12 19:37:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867548677] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:50,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:50,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:37:50,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220770190] [2024-09-12 19:37:50,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:50,073 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:37:50,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:50,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:37:50,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:37:50,074 INFO L87 Difference]: Start difference. First operand 190 states and 197 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:50,370 INFO L93 Difference]: Finished difference Result 199 states and 203 transitions. [2024-09-12 19:37:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:37:50,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2024-09-12 19:37:50,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:50,373 INFO L225 Difference]: With dead ends: 199 [2024-09-12 19:37:50,373 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:37:50,374 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:37:50,375 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 38 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:50,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 251 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:37:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:37:50,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2024-09-12 19:37:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 103 states have (on average 1.5242718446601942) internal successors, (157), 154 states have internal predecessors, (157), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 169 transitions. [2024-09-12 19:37:50,405 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 169 transitions. Word has length 38 [2024-09-12 19:37:50,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:50,405 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 169 transitions. [2024-09-12 19:37:50,406 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 19:37:50,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:50,406 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 169 transitions. [2024-09-12 19:37:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:37:50,407 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:50,407 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:50,426 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 19:37:50,610 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:50,610 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:50,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -728668980, now seen corresponding path program 1 times [2024-09-12 19:37:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:50,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564436717] [2024-09-12 19:37:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:50,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:50,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:50,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:50,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 19:37:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:50,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564436717] [2024-09-12 19:37:50,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564436717] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:50,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:50,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:37:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878428469] [2024-09-12 19:37:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:50,745 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:37:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:37:50,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:37:50,746 INFO L87 Difference]: Start difference. First operand 165 states and 169 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:50,785 INFO L93 Difference]: Finished difference Result 167 states and 169 transitions. [2024-09-12 19:37:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:37:50,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-09-12 19:37:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:50,787 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:37:50,787 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 19:37:50,788 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:37:50,789 INFO L434 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 255 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 19:37:50,789 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 255 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:37:50,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 19:37:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-09-12 19:37:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 103 states have (on average 1.5048543689320388) internal successors, (155), 154 states have internal predecessors, (155), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2024-09-12 19:37:50,801 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 41 [2024-09-12 19:37:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:50,802 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2024-09-12 19:37:50,802 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:50,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2024-09-12 19:37:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:37:50,804 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:50,804 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:50,804 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:37:50,804 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:50,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:50,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1693407396, now seen corresponding path program 1 times [2024-09-12 19:37:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:50,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550784536] [2024-09-12 19:37:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:50,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517635023] [2024-09-12 19:37:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:50,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:50,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:50,835 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 19:37:50,836 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 19:37:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:50,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:37:50,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:50,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:50,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:50,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550784536] [2024-09-12 19:37:50,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:50,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517635023] [2024-09-12 19:37:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517635023] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:50,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:37:50,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288041176] [2024-09-12 19:37:50,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:50,960 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:37:50,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:37:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:37:50,961 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:51,256 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2024-09-12 19:37:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:37:51,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-09-12 19:37:51,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:51,258 INFO L225 Difference]: With dead ends: 262 [2024-09-12 19:37:51,258 INFO L226 Difference]: Without dead ends: 236 [2024-09-12 19:37:51,259 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:37:51,259 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 67 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:51,259 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 134 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:37:51,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-09-12 19:37:51,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 227. [2024-09-12 19:37:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 163 states have (on average 1.460122699386503) internal successors, (238), 214 states have internal predecessors, (238), 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 19:37:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 254 transitions. [2024-09-12 19:37:51,278 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 254 transitions. Word has length 46 [2024-09-12 19:37:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:51,280 INFO L474 AbstractCegarLoop]: Abstraction has 227 states and 254 transitions. [2024-09-12 19:37:51,280 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:51,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 254 transitions. [2024-09-12 19:37:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:37:51,282 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:51,282 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:51,299 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:37:51,483 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 19:37:51,483 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:51,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash -386007340, now seen corresponding path program 1 times [2024-09-12 19:37:51,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:51,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632504099] [2024-09-12 19:37:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:51,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:51,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:51,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:51,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 19:37:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:51,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:51,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:51,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632504099] [2024-09-12 19:37:51,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632504099] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:51,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:51,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:37:51,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187210098] [2024-09-12 19:37:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:51,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:37:51,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:51,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:37:51,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:37:51,594 INFO L87 Difference]: Start difference. First operand 227 states and 254 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:52,037 INFO L93 Difference]: Finished difference Result 228 states and 254 transitions. [2024-09-12 19:37:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:37:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2024-09-12 19:37:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:52,040 INFO L225 Difference]: With dead ends: 228 [2024-09-12 19:37:52,040 INFO L226 Difference]: Without dead ends: 227 [2024-09-12 19:37:52,040 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 19:37:52,041 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 30 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:52,041 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 222 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:37:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-09-12 19:37:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-09-12 19:37:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 163 states have (on average 1.4539877300613497) internal successors, (237), 214 states have internal predecessors, (237), 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 19:37:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2024-09-12 19:37:52,064 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 49 [2024-09-12 19:37:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:52,065 INFO L474 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2024-09-12 19:37:52,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:52,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:52,066 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2024-09-12 19:37:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:37:52,068 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:52,068 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:52,068 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:37:52,069 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:52,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash 918674472, now seen corresponding path program 1 times [2024-09-12 19:37:52,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771723032] [2024-09-12 19:37:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:52,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:52,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:37:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:52,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:37:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:52,158 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 19:37:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:52,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:52,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771723032] [2024-09-12 19:37:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771723032] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:52,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:52,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:37:52,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949136950] [2024-09-12 19:37:52,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:52,163 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:37:52,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:52,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:37:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:37:52,164 INFO L87 Difference]: Start difference. First operand 227 states and 253 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:52,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:52,452 INFO L93 Difference]: Finished difference Result 228 states and 253 transitions. [2024-09-12 19:37:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:37:52,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2024-09-12 19:37:52,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:52,454 INFO L225 Difference]: With dead ends: 228 [2024-09-12 19:37:52,455 INFO L226 Difference]: Without dead ends: 227 [2024-09-12 19:37:52,455 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 19:37:52,455 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 27 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:52,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 227 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:37:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-09-12 19:37:52,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-09-12 19:37:52,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 163 states have (on average 1.4478527607361964) internal successors, (236), 214 states have internal predecessors, (236), 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 19:37:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 252 transitions. [2024-09-12 19:37:52,478 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 252 transitions. Word has length 50 [2024-09-12 19:37:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:52,479 INFO L474 AbstractCegarLoop]: Abstraction has 227 states and 252 transitions. [2024-09-12 19:37:52,479 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:52,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 252 transitions. [2024-09-12 19:37:52,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:37:52,481 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:52,481 INFO L216 NwaCegarLoop]: trace 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, 1, 1, 1, 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 19:37:52,481 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:37:52,482 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:52,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:52,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1917093654, now seen corresponding path program 1 times [2024-09-12 19:37:52,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735906778] [2024-09-12 19:37:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:52,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:52,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059991085] [2024-09-12 19:37:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:52,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:52,503 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 19:37:52,506 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 19:37:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:52,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:37:52,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:52,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:52,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735906778] [2024-09-12 19:37:52,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059991085] [2024-09-12 19:37:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059991085] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:52,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:37:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323756032] [2024-09-12 19:37:52,878 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:37:52,878 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:37:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:37:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:52,879 INFO L87 Difference]: Start difference. First operand 227 states and 252 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:53,303 INFO L93 Difference]: Finished difference Result 227 states and 252 transitions. [2024-09-12 19:37:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:37:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2024-09-12 19:37:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:53,305 INFO L225 Difference]: With dead ends: 227 [2024-09-12 19:37:53,305 INFO L226 Difference]: Without dead ends: 216 [2024-09-12 19:37:53,305 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:37:53,306 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 143 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:53,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 92 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:37:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-09-12 19:37:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-09-12 19:37:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 163 states have (on average 1.3680981595092025) internal successors, (223), 203 states have internal predecessors, (223), 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 19:37:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 239 transitions. [2024-09-12 19:37:53,335 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 239 transitions. Word has length 52 [2024-09-12 19:37:53,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:53,335 INFO L474 AbstractCegarLoop]: Abstraction has 216 states and 239 transitions. [2024-09-12 19:37:53,335 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:53,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 239 transitions. [2024-09-12 19:37:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:37:53,336 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:53,337 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:53,353 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 19:37:53,537 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:53,537 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:53,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash 699638928, now seen corresponding path program 1 times [2024-09-12 19:37:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:53,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596758442] [2024-09-12 19:37:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:53,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:53,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104102000] [2024-09-12 19:37:53,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:53,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:53,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:53,555 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 19:37:53,556 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 19:37:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:53,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:37:53,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:53,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:53,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596758442] [2024-09-12 19:37:53,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104102000] [2024-09-12 19:37:53,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104102000] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:37:53,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:37:53,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:37:53,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507498202] [2024-09-12 19:37:53,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:37:53,895 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:37:53,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:53,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:37:53,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:53,897 INFO L87 Difference]: Start difference. First operand 216 states and 239 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:54,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:54,419 INFO L93 Difference]: Finished difference Result 238 states and 257 transitions. [2024-09-12 19:37:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:37:54,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-09-12 19:37:54,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:54,421 INFO L225 Difference]: With dead ends: 238 [2024-09-12 19:37:54,421 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 19:37:54,421 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:37:54,422 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 280 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:54,422 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 160 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:37:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 19:37:54,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 218. [2024-09-12 19:37:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 172 states have (on average 1.2732558139534884) internal successors, (219), 205 states have internal predecessors, (219), 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 19:37:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 235 transitions. [2024-09-12 19:37:54,456 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 235 transitions. Word has length 53 [2024-09-12 19:37:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:54,456 INFO L474 AbstractCegarLoop]: Abstraction has 218 states and 235 transitions. [2024-09-12 19:37:54,457 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:54,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 235 transitions. [2024-09-12 19:37:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:37:54,458 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:54,458 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:54,474 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 19:37:54,658 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:37:54,659 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:54,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:54,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1715708942, now seen corresponding path program 1 times [2024-09-12 19:37:54,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:54,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467552820] [2024-09-12 19:37:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:54,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:54,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104168765] [2024-09-12 19:37:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:54,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:54,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:54,677 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 19:37:54,679 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 19:37:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:54,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:37:54,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:54,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:37:54,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467552820] [2024-09-12 19:37:54,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:54,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104168765] [2024-09-12 19:37:54,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104168765] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:37:54,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:37:54,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:37:54,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471468693] [2024-09-12 19:37:54,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:54,921 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:37:54,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:54,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:37:54,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:37:54,922 INFO L87 Difference]: Start difference. First operand 218 states and 235 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:55,168 INFO L93 Difference]: Finished difference Result 218 states and 235 transitions. [2024-09-12 19:37:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:37:55,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-09-12 19:37:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:55,171 INFO L225 Difference]: With dead ends: 218 [2024-09-12 19:37:55,171 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 19:37:55,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:37:55,171 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 147 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:55,172 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 72 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:37:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 19:37:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 172. [2024-09-12 19:37:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 146 states have (on average 1.13013698630137) internal successors, (165), 160 states have internal predecessors, (165), 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 19:37:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 179 transitions. [2024-09-12 19:37:55,208 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 179 transitions. Word has length 60 [2024-09-12 19:37:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:55,208 INFO L474 AbstractCegarLoop]: Abstraction has 172 states and 179 transitions. [2024-09-12 19:37:55,209 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:55,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 179 transitions. [2024-09-12 19:37:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 19:37:55,211 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:55,211 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:55,229 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 19:37:55,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:37:55,416 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:55,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:55,416 INFO L85 PathProgramCache]: Analyzing trace with hash -150034602, now seen corresponding path program 1 times [2024-09-12 19:37:55,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479144564] [2024-09-12 19:37:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:55,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288172985] [2024-09-12 19:37:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:55,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:55,439 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 19:37:55,441 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 19:37:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:55,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:37:55,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:37:55,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:37:55,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:55,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479144564] [2024-09-12 19:37:55,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288172985] [2024-09-12 19:37:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288172985] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:55,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:55,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:37:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072405752] [2024-09-12 19:37:55,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:37:55,939 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:37:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:37:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:37:55,940 INFO L87 Difference]: Start difference. First operand 172 states and 179 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:56,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:56,595 INFO L93 Difference]: Finished difference Result 178 states and 184 transitions. [2024-09-12 19:37:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:37:56,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 77 [2024-09-12 19:37:56,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:56,597 INFO L225 Difference]: With dead ends: 178 [2024-09-12 19:37:56,598 INFO L226 Difference]: Without dead ends: 151 [2024-09-12 19:37:56,598 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:37:56,600 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 61 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:56,600 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 104 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:37:56,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-09-12 19:37:56,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-09-12 19:37:56,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 126 states have (on average 1.1428571428571428) internal successors, (144), 139 states have internal predecessors, (144), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 156 transitions. [2024-09-12 19:37:56,638 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 156 transitions. Word has length 77 [2024-09-12 19:37:56,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:56,639 INFO L474 AbstractCegarLoop]: Abstraction has 151 states and 156 transitions. [2024-09-12 19:37:56,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:37:56,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:56,640 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 156 transitions. [2024-09-12 19:37:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 19:37:56,640 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:56,641 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:56,657 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:37:56,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:56,841 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:56,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:56,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1385064980, now seen corresponding path program 1 times [2024-09-12 19:37:56,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:56,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173940198] [2024-09-12 19:37:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:56,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:56,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [271467940] [2024-09-12 19:37:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:56,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:56,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:56,863 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 19:37:56,865 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 19:37:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:56,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:37:56,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:37:57,139 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:57,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173940198] [2024-09-12 19:37:57,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271467940] [2024-09-12 19:37:57,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271467940] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:57,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:57,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:37:57,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101661275] [2024-09-12 19:37:57,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:37:57,363 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:37:57,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:37:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:57,364 INFO L87 Difference]: Start difference. First operand 151 states and 156 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:57,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:57,549 INFO L93 Difference]: Finished difference Result 151 states and 156 transitions. [2024-09-12 19:37:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:37:57,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 80 [2024-09-12 19:37:57,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:57,551 INFO L225 Difference]: With dead ends: 151 [2024-09-12 19:37:57,551 INFO L226 Difference]: Without dead ends: 149 [2024-09-12 19:37:57,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:37:57,552 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:57,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 62 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:37:57,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-12 19:37:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-09-12 19:37:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 126 states have (on average 1.119047619047619) internal successors, (141), 137 states have internal predecessors, (141), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 153 transitions. [2024-09-12 19:37:57,598 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 153 transitions. Word has length 80 [2024-09-12 19:37:57,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:57,599 INFO L474 AbstractCegarLoop]: Abstraction has 149 states and 153 transitions. [2024-09-12 19:37:57,599 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:57,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 153 transitions. [2024-09-12 19:37:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 19:37:57,601 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:57,601 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:57,622 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 19:37:57,805 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:57,806 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:57,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash -12658449, now seen corresponding path program 1 times [2024-09-12 19:37:57,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:57,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127041332] [2024-09-12 19:37:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:57,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828353501] [2024-09-12 19:37:57,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:57,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:57,827 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 19:37:57,828 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 19:37:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:57,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:37:57,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:37:58,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:58,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:58,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127041332] [2024-09-12 19:37:58,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:58,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828353501] [2024-09-12 19:37:58,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828353501] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:58,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:58,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:37:58,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120649891] [2024-09-12 19:37:58,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:37:58,287 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:37:58,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:37:58,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:58,288 INFO L87 Difference]: Start difference. First operand 149 states and 153 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:58,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:58,606 INFO L93 Difference]: Finished difference Result 159 states and 163 transitions. [2024-09-12 19:37:58,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:37:58,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 81 [2024-09-12 19:37:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:58,607 INFO L225 Difference]: With dead ends: 159 [2024-09-12 19:37:58,608 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 19:37:58,609 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:58,610 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:58,610 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 100 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:37:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 19:37:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2024-09-12 19:37:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 132 states have (on average 1.1136363636363635) internal successors, (147), 143 states have internal predecessors, (147), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2024-09-12 19:37:58,656 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 81 [2024-09-12 19:37:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:58,657 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2024-09-12 19:37:58,657 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:58,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2024-09-12 19:37:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:37:58,658 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:58,659 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:58,675 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:37:58,859 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:37:58,859 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:58,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:58,860 INFO L85 PathProgramCache]: Analyzing trace with hash 849400024, now seen corresponding path program 1 times [2024-09-12 19:37:58,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:58,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584175715] [2024-09-12 19:37:58,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:58,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:58,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1963116901] [2024-09-12 19:37:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:58,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:58,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:58,890 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 19:37:58,892 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 19:37:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:58,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:37:58,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:37:59,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:37:59,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:37:59,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584175715] [2024-09-12 19:37:59,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:37:59,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963116901] [2024-09-12 19:37:59,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963116901] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:37:59,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:37:59,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:37:59,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649791077] [2024-09-12 19:37:59,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:37:59,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:37:59,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:37:59,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:37:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:37:59,306 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:59,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:37:59,575 INFO L93 Difference]: Finished difference Result 157 states and 160 transitions. [2024-09-12 19:37:59,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:37:59,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 84 [2024-09-12 19:37:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:37:59,578 INFO L225 Difference]: With dead ends: 157 [2024-09-12 19:37:59,578 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 19:37:59,579 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:37:59,579 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:37:59,580 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 106 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:37:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 19:37:59,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2024-09-12 19:37:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 132 states have (on average 1.106060606060606) internal successors, (146), 143 states have internal predecessors, (146), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:37:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 158 transitions. [2024-09-12 19:37:59,622 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 158 transitions. Word has length 84 [2024-09-12 19:37:59,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:37:59,622 INFO L474 AbstractCegarLoop]: Abstraction has 155 states and 158 transitions. [2024-09-12 19:37:59,622 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:37:59,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 158 transitions. [2024-09-12 19:37:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:37:59,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:37:59,626 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:37:59,642 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 19:37:59,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:37:59,827 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:37:59,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:37:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1656184981, now seen corresponding path program 1 times [2024-09-12 19:37:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:37:59,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849605996] [2024-09-12 19:37:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:37:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:37:59,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279039636] [2024-09-12 19:37:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:37:59,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:37:59,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:37:59,847 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 19:37:59,849 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 19:37:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:37:59,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:37:59,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:37:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:37:59,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:38:00,136 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:38:00,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:38:00,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849605996] [2024-09-12 19:38:00,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:38:00,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279039636] [2024-09-12 19:38:00,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279039636] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:38:00,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:38:00,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:38:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040004310] [2024-09-12 19:38:00,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:38:00,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:38:00,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:38:00,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:38:00,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:38:00,139 INFO L87 Difference]: Start difference. First operand 155 states and 158 transitions. Second operand has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 8 states have internal predecessors, (138), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:38:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:38:00,426 INFO L93 Difference]: Finished difference Result 196 states and 207 transitions. [2024-09-12 19:38:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:38:00,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 8 states have internal predecessors, (138), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 85 [2024-09-12 19:38:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:38:00,428 INFO L225 Difference]: With dead ends: 196 [2024-09-12 19:38:00,428 INFO L226 Difference]: Without dead ends: 192 [2024-09-12 19:38:00,428 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:38:00,429 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 189 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:38:00,429 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 145 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:38:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-09-12 19:38:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2024-09-12 19:38:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 138 states have (on average 1.0797101449275361) internal successors, (149), 147 states have internal predecessors, (149), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:38:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 161 transitions. [2024-09-12 19:38:00,484 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 161 transitions. Word has length 85 [2024-09-12 19:38:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:38:00,484 INFO L474 AbstractCegarLoop]: Abstraction has 159 states and 161 transitions. [2024-09-12 19:38:00,484 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 8 states have internal predecessors, (138), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:38:00,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:38:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 161 transitions. [2024-09-12 19:38:00,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 19:38:00,485 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:38:00,486 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:38:00,503 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:38:00,689 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:38:00,690 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:38:00,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:38:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash -637555805, now seen corresponding path program 1 times [2024-09-12 19:38:00,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:38:00,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903327992] [2024-09-12 19:38:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:38:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:38:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:38:00,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866622087] [2024-09-12 19:38:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:38:00,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:38:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:38:00,708 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 19:38:00,712 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 19:38:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:38:00,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:38:00,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:38:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 19:38:01,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:38:37,492 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:38:49,504 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:39:05,520 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:39:09,526 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_main_~y~0_BEFORE_CALL_25 Int) (v_main_~k~0_BEFORE_CALL_7 Int)) (or (= (mod (+ (* 2 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 3) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 3)) 4) 0) (= (* v_main_~y~0_BEFORE_CALL_25 v_main_~k~0_BEFORE_CALL_7) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25))))) is different from true [2024-09-12 19:39:25,550 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:39:41,585 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-12 19:39:45,591 WARN L876 $PredicateComparison]: unable to prove that (or (not (= |c___VERIFIER_assert_#in~cond| 0)) (forall ((v_main_~y~0_BEFORE_CALL_25 Int) (v_main_~k~0_BEFORE_CALL_7 Int)) (or (= (mod (+ (* 2 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 3) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25 3)) 4) 0) (= (* v_main_~y~0_BEFORE_CALL_25 v_main_~k~0_BEFORE_CALL_7) (* v_main_~y~0_BEFORE_CALL_25 v_main_~y~0_BEFORE_CALL_25)))) (= c___VERIFIER_assert_~cond 0)) is different from true [2024-09-12 19:41:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2024-09-12 19:41:06,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:06,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903327992] [2024-09-12 19:41:06,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:06,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866622087] [2024-09-12 19:41:06,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866622087] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:06,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:06,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 19 [2024-09-12 19:41:06,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035177954] [2024-09-12 19:41:06,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:06,896 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:41:06,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:06,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:41:06,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=215, Unknown=4, NotChecked=62, Total=342 [2024-09-12 19:41:06,897 INFO L87 Difference]: Start difference. First operand 159 states and 161 transitions. Second operand has 19 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 18 states have internal predecessors, (147), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:41:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:07,625 INFO L93 Difference]: Finished difference Result 189 states and 193 transitions. [2024-09-12 19:41:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:41:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 18 states have internal predecessors, (147), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 89 [2024-09-12 19:41:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:07,627 INFO L225 Difference]: With dead ends: 189 [2024-09-12 19:41:07,629 INFO L226 Difference]: Without dead ends: 171 [2024-09-12 19:41:07,629 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 158 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=83, Invalid=301, Unknown=4, NotChecked=74, Total=462 [2024-09-12 19:41:07,630 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:07,630 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 224 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 675 Invalid, 0 Unknown, 366 Unchecked, 0.6s Time] [2024-09-12 19:41:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-09-12 19:41:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-09-12 19:41:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 149 states have (on average 1.0738255033557047) internal successors, (160), 158 states have internal predecessors, (160), 8 states have call successors, (8), 6 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 19:41:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 174 transitions. [2024-09-12 19:41:07,688 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 174 transitions. Word has length 89 [2024-09-12 19:41:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:07,688 INFO L474 AbstractCegarLoop]: Abstraction has 171 states and 174 transitions. [2024-09-12 19:41:07,689 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 18 states have internal predecessors, (147), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-09-12 19:41:07,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 174 transitions. [2024-09-12 19:41:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 19:41:07,690 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:07,690 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 19:41:07,707 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 19:41:07,891 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:41:07,891 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:41:07,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash 377848670, now seen corresponding path program 2 times [2024-09-12 19:41:07,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:07,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133995224] [2024-09-12 19:41:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:07,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673817924] [2024-09-12 19:41:07,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:41:07,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:07,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:07,911 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 19:41:07,912 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 19:41:07,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:41:07,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:41:07,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:41:07,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:08,304 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-09-12 19:41:08,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:08,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:08,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133995224] [2024-09-12 19:41:08,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:08,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673817924] [2024-09-12 19:41:08,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673817924] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:08,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:08,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:41:08,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003496207] [2024-09-12 19:41:08,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:08,305 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:41:08,306 INFO L87 Difference]: Start difference. First operand 171 states and 174 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 19:41:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:08,437 INFO L93 Difference]: Finished difference Result 171 states and 174 transitions. [2024-09-12 19:41:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:41:08,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 120 [2024-09-12 19:41:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:08,440 INFO L225 Difference]: With dead ends: 171 [2024-09-12 19:41:08,440 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:41:08,441 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:41:08,441 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 29 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:08,441 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 111 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:41:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 19:41:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.0476190476190477) internal successors, (154), 153 states have internal predecessors, (154), 8 states have call successors, (8), 6 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 19:41:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2024-09-12 19:41:08,494 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 120 [2024-09-12 19:41:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:08,494 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2024-09-12 19:41:08,494 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 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 19:41:08,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2024-09-12 19:41:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 19:41:08,495 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:08,496 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:08,512 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:08,696 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:08,696 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:41:08,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:08,697 INFO L85 PathProgramCache]: Analyzing trace with hash 377849856, now seen corresponding path program 1 times [2024-09-12 19:41:08,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:08,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808815602] [2024-09-12 19:41:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 19:41:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 19:41:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-09-12 19:41:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-09-12 19:41:08,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:08,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808815602] [2024-09-12 19:41:08,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808815602] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:08,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305283159] [2024-09-12 19:41:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:08,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:08,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:08,832 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 19:41:08,833 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 19:41:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:08,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:41:08,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:41:09,009 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:41:09,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305283159] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:09,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:41:09,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2024-09-12 19:41:09,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643026089] [2024-09-12 19:41:09,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:09,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:41:09,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:09,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:41:09,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:09,163 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:41:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:09,304 INFO L93 Difference]: Finished difference Result 206 states and 211 transitions. [2024-09-12 19:41:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:41:09,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 120 [2024-09-12 19:41:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:09,305 INFO L225 Difference]: With dead ends: 206 [2024-09-12 19:41:09,305 INFO L226 Difference]: Without dead ends: 205 [2024-09-12 19:41:09,306 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=122, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:41:09,306 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 67 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:09,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 282 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-09-12 19:41:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2024-09-12 19:41:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 147 states have (on average 1.0408163265306123) internal successors, (153), 152 states have internal predecessors, (153), 8 states have call successors, (8), 6 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 19:41:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 167 transitions. [2024-09-12 19:41:09,360 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 167 transitions. Word has length 120 [2024-09-12 19:41:09,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:09,360 INFO L474 AbstractCegarLoop]: Abstraction has 165 states and 167 transitions. [2024-09-12 19:41:09,360 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 8 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-09-12 19:41:09,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 167 transitions. [2024-09-12 19:41:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 19:41:09,365 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:09,365 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:09,382 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:41:09,565 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:09,566 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:41:09,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1884584262, now seen corresponding path program 1 times [2024-09-12 19:41:09,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:09,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639057458] [2024-09-12 19:41:09,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:09,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139477473] [2024-09-12 19:41:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:09,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:09,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:09,585 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 19:41:09,586 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 19:41:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:09,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:41:09,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:41:09,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:09,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:09,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639057458] [2024-09-12 19:41:09,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:09,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139477473] [2024-09-12 19:41:09,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139477473] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:09,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:09,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:41:09,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282402766] [2024-09-12 19:41:09,834 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:09,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:09,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:09,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:09,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:41:09,835 INFO L87 Difference]: Start difference. First operand 165 states and 167 transitions. Second operand has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:41:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:10,069 INFO L93 Difference]: Finished difference Result 214 states and 220 transitions. [2024-09-12 19:41:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:41:10,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 126 [2024-09-12 19:41:10,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:10,070 INFO L225 Difference]: With dead ends: 214 [2024-09-12 19:41:10,070 INFO L226 Difference]: Without dead ends: 212 [2024-09-12 19:41:10,071 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:41:10,071 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 38 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:10,071 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 74 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:41:10,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-09-12 19:41:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 182. [2024-09-12 19:41:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 164 states have (on average 1.048780487804878) internal successors, (172), 169 states have internal predecessors, (172), 8 states have call successors, (8), 6 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 19:41:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 186 transitions. [2024-09-12 19:41:10,119 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 186 transitions. Word has length 126 [2024-09-12 19:41:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:10,119 INFO L474 AbstractCegarLoop]: Abstraction has 182 states and 186 transitions. [2024-09-12 19:41:10,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.8) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:41:10,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 186 transitions. [2024-09-12 19:41:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 19:41:10,121 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:10,121 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:10,137 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:41:10,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:41:10,321 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:41:10,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1390719224, now seen corresponding path program 1 times [2024-09-12 19:41:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:10,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895955838] [2024-09-12 19:41:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:10,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:10,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760737230] [2024-09-12 19:41:10,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:10,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:10,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:10,353 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 19:41:10,355 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 19:41:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:10,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:41:10,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 105 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:41:10,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 6 proven. 105 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:41:11,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895955838] [2024-09-12 19:41:11,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760737230] [2024-09-12 19:41:11,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760737230] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:11,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:11,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2024-09-12 19:41:11,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399515625] [2024-09-12 19:41:11,742 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:11,742 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:41:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:11,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:41:11,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:41:11,743 INFO L87 Difference]: Start difference. First operand 182 states and 186 transitions. Second operand has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 18 states have internal predecessors, (219), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:41:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:12,887 INFO L93 Difference]: Finished difference Result 201 states and 207 transitions. [2024-09-12 19:41:12,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:41:12,888 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 18 states have internal predecessors, (219), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 128 [2024-09-12 19:41:12,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:12,891 INFO L225 Difference]: With dead ends: 201 [2024-09-12 19:41:12,891 INFO L226 Difference]: Without dead ends: 200 [2024-09-12 19:41:12,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:41:12,892 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 183 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:12,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 236 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:41:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-09-12 19:41:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 181. [2024-09-12 19:41:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 164 states have (on average 1.0365853658536586) internal successors, (170), 168 states have internal predecessors, (170), 8 states have call successors, (8), 6 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 19:41:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions. [2024-09-12 19:41:12,974 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 128 [2024-09-12 19:41:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:12,975 INFO L474 AbstractCegarLoop]: Abstraction has 181 states and 184 transitions. [2024-09-12 19:41:12,975 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.882352941176471) internal successors, (219), 18 states have internal predecessors, (219), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:41:12,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions. [2024-09-12 19:41:12,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:41:12,976 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:12,976 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:12,993 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 19:41:13,180 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:13,181 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:41:13,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:13,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1661811280, now seen corresponding path program 2 times [2024-09-12 19:41:13,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:13,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790761153] [2024-09-12 19:41:13,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:13,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:13,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688335685] [2024-09-12 19:41:13,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:41:13,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:13,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:13,210 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 19:41:13,212 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 19:41:13,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:41:13,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:41:13,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:41:13,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 6 proven. 114 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:41:13,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 6 proven. 114 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:41:14,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790761153] [2024-09-12 19:41:14,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688335685] [2024-09-12 19:41:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688335685] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:14,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:14,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2024-09-12 19:41:14,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672322579] [2024-09-12 19:41:14,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:14,517 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:41:14,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:14,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:41:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:41:14,518 INFO L87 Difference]: Start difference. First operand 181 states and 184 transitions. Second operand has 20 states, 19 states have (on average 11.842105263157896) internal successors, (225), 20 states have internal predecessors, (225), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:41:18,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:23,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:27,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:31,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:35,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:39,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:41,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:45,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:49,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:53,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:57,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:01,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:01,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:01,234 INFO L93 Difference]: Finished difference Result 351 states and 373 transitions. [2024-09-12 19:42:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 19:42:01,234 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.842105263157896) internal successors, (225), 20 states have internal predecessors, (225), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 131 [2024-09-12 19:42:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:01,236 INFO L225 Difference]: With dead ends: 351 [2024-09-12 19:42:01,237 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 19:42:01,237 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=303, Invalid=753, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:42:01,237 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 576 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 47 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:01,238 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 340 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1472 Invalid, 9 Unknown, 0 Unchecked, 46.0s Time] [2024-09-12 19:42:01,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 19:42:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 317. [2024-09-12 19:42:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 296 states have (on average 1.0641891891891893) internal successors, (315), 300 states have internal predecessors, (315), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:42:01,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 337 transitions. [2024-09-12 19:42:01,397 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 337 transitions. Word has length 131 [2024-09-12 19:42:01,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:01,397 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 337 transitions. [2024-09-12 19:42:01,397 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.842105263157896) internal successors, (225), 20 states have internal predecessors, (225), 7 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:42:01,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:01,398 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 337 transitions. [2024-09-12 19:42:01,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-09-12 19:42:01,398 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:01,399 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:01,417 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:42:01,599 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:01,600 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-09-12 19:42:01,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1824632778, now seen corresponding path program 1 times [2024-09-12 19:42:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:01,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370542708] [2024-09-12 19:42:01,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:01,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752525281] [2024-09-12 19:42:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:01,623 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 19:42:01,625 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 19:42:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:01,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:01,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:42:01,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:42:02,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370542708] [2024-09-12 19:42:02,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752525281] [2024-09-12 19:42:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752525281] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:02,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:02,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:42:02,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982634801] [2024-09-12 19:42:02,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:02,082 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:42:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:02,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:42:02,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:02,083 INFO L87 Difference]: Start difference. First operand 317 states and 337 transitions. Second operand has 10 states, 9 states have (on average 25.77777777777778) internal successors, (232), 10 states have internal predecessors, (232), 7 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-09-12 19:42:06,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:10,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []