./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.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/cohendiv-ll_unwindbound20.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 93ad3f0e42b4c26a38d8e528f550b89aecdadec634fd1fe3b21f86af4528c655 --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 18:38:40,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:38:40,376 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:38:40,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:38:40,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:38:40,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:38:40,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:38:40,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:38:40,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:38:40,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:38:40,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:38:40,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:38:40,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:38:40,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:38:40,421 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:38:40,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:38:40,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:38:40,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:38:40,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:38:40,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:38:40,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:38:40,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:38:40,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:38:40,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:38:40,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:38:40,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:38:40,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:38:40,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:38:40,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:38:40,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:38:40,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:38:40,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:38:40,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:38:40,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:38:40,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:38:40,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:38:40,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:38:40,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:38:40,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:38:40,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:38:40,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:38:40,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:38:40,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93ad3f0e42b4c26a38d8e528f550b89aecdadec634fd1fe3b21f86af4528c655 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:38:40,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:38:40,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:38:40,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:38:40,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:38:40,784 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:38:40,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.c [2024-09-12 18:38:42,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:38:42,484 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:38:42,485 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound20.c [2024-09-12 18:38:42,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c13e759dc/68a5cd462d014b1eaec92ebfa396ad8b/FLAG09f4d1ba9 [2024-09-12 18:38:42,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c13e759dc/68a5cd462d014b1eaec92ebfa396ad8b [2024-09-12 18:38:42,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:38:42,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:38:42,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:38:42,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:38:42,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:38:42,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79edebdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42, skipping insertion in model container [2024-09-12 18:38:42,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:38:42,707 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/cohendiv-ll_unwindbound20.c[576,589] [2024-09-12 18:38:42,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:38:42,749 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:38:42,762 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/cohendiv-ll_unwindbound20.c[576,589] [2024-09-12 18:38:42,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:38:42,794 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:38:42,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42 WrapperNode [2024-09-12 18:38:42,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:38:42,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:38:42,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:38:42,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:38:42,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,825 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:38:42,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:38:42,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:38:42,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:38:42,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:38:42,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,859 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 18:38:42,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:38:42,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:38:42,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:38:42,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:38:42,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (1/1) ... [2024-09-12 18:38:42,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:38:42,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:42,912 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 18:38:42,918 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 18:38:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:38:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:38:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:38:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:38:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:38:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:38:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:38:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:38:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:38:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:38:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:38:42,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:38:43,031 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:38:43,033 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:38:43,466 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 18:38:43,471 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:38:43,497 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:38:43,501 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:38:43,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:38:43 BoogieIcfgContainer [2024-09-12 18:38:43,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:38:43,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:38:43,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:38:43,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:38:43,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:38:42" (1/3) ... [2024-09-12 18:38:43,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3441a79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:38:43, skipping insertion in model container [2024-09-12 18:38:43,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:42" (2/3) ... [2024-09-12 18:38:43,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3441a79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:38:43, skipping insertion in model container [2024-09-12 18:38:43,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:38:43" (3/3) ... [2024-09-12 18:38:43,512 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound20.c [2024-09-12 18:38:43,528 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:38:43,529 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2024-09-12 18:38:43,596 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:38:43,607 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;@def9b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:38:43,607 INFO L337 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-09-12 18:38:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:38:43,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:38:43,620 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:43,621 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:43,621 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:43,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1334578321, now seen corresponding path program 1 times [2024-09-12 18:38:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:43,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878686314] [2024-09-12 18:38:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:43,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:43,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:43,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:43,800 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 18:38:43,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:43,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878686314] [2024-09-12 18:38:43,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878686314] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:43,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:43,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:43,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167188673] [2024-09-12 18:38:43,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:43,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:43,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:43,833 INFO L87 Difference]: Start difference. First operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 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 18:38:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:43,950 INFO L93 Difference]: Finished difference Result 201 states and 234 transitions. [2024-09-12 18:38:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 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 18:38:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:43,960 INFO L225 Difference]: With dead ends: 201 [2024-09-12 18:38:43,961 INFO L226 Difference]: Without dead ends: 103 [2024-09-12 18:38:43,964 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 18:38:43,967 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:43,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-09-12 18:38:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2024-09-12 18:38:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 50 states have (on average 1.78) internal successors, (89), 85 states have internal predecessors, (89), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-09-12 18:38:44,026 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 13 [2024-09-12 18:38:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:44,027 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-09-12 18:38:44,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 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 18:38:44,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-09-12 18:38:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:38:44,029 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:44,029 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:44,030 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:38:44,030 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:44,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1277320019, now seen corresponding path program 1 times [2024-09-12 18:38:44,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:44,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444554113] [2024-09-12 18:38:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:44,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:44,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:44,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:44,258 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 18:38:44,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:44,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444554113] [2024-09-12 18:38:44,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444554113] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:44,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:44,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:44,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222865084] [2024-09-12 18:38:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:44,264 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:44,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:44,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:44,266 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:38:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:44,513 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2024-09-12 18:38:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:38:44,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-12 18:38:44,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:44,516 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:38:44,517 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 18:38:44,517 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:44,518 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 19 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:44,519 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 331 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:44,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 18:38:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 18:38:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 89 states have internal predecessors, (93), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2024-09-12 18:38:44,536 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 13 [2024-09-12 18:38:44,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:44,537 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2024-09-12 18:38:44,537 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:38:44,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2024-09-12 18:38:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:38:44,538 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:44,538 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:44,538 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:38:44,539 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:44,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash 769610315, now seen corresponding path program 1 times [2024-09-12 18:38:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:44,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683894988] [2024-09-12 18:38:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:44,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:44,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106345615] [2024-09-12 18:38:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:44,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:44,568 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 18:38:44,571 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 18:38:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:44,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:38:44,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:44,670 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 18:38:44,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683894988] [2024-09-12 18:38:44,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:44,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106345615] [2024-09-12 18:38:44,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106345615] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:44,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:44,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:38:44,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142424503] [2024-09-12 18:38:44,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:44,675 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:44,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:44,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:44,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:44,676 INFO L87 Difference]: Start difference. First operand 102 states and 111 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 18:38:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:44,825 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2024-09-12 18:38:44,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:44,825 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 18:38:44,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:44,827 INFO L225 Difference]: With dead ends: 126 [2024-09-12 18:38:44,829 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 18:38:44,829 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 18:38:44,831 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 19 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:44,831 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 187 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:44,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 18:38:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2024-09-12 18:38:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.6964285714285714) internal successors, (95), 91 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:38:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-09-12 18:38:44,852 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 16 [2024-09-12 18:38:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:44,852 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-09-12 18:38:44,853 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 18:38:44,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-09-12 18:38:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:38:44,854 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:44,854 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 18:38:44,870 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 18:38:45,058 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 18:38:45,059 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:45,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash 380213190, now seen corresponding path program 1 times [2024-09-12 18:38:45,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:45,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021621596] [2024-09-12 18:38:45,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:45,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:45,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941784894] [2024-09-12 18:38:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:45,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:45,081 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 18:38:45,084 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 18:38:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:45,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:38:45,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:45,194 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 18:38:45,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:45,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021621596] [2024-09-12 18:38:45,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941784894] [2024-09-12 18:38:45,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941784894] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:45,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:45,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75242035] [2024-09-12 18:38:45,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:45,203 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:45,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:45,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:45,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:45,204 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18:38:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:45,395 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2024-09-12 18:38:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 21 [2024-09-12 18:38:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:45,398 INFO L225 Difference]: With dead ends: 130 [2024-09-12 18:38:45,400 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 18:38:45,401 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 18:38:45,402 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 20 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:45,402 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 363 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 18:38:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 109. [2024-09-12 18:38:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 95 states have internal predecessors, (98), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:38:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2024-09-12 18:38:45,416 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 21 [2024-09-12 18:38:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:45,417 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2024-09-12 18:38:45,417 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18:38:45,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2024-09-12 18:38:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:38:45,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:45,418 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] [2024-09-12 18:38:45,434 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:45,622 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:45,623 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:45,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash 312813782, now seen corresponding path program 1 times [2024-09-12 18:38:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:45,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941202976] [2024-09-12 18:38:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:45,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243229406] [2024-09-12 18:38:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:45,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:45,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:45,641 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 18:38:45,646 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 18:38:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:45,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:38:45,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:45,712 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 18:38:45,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:45,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:45,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941202976] [2024-09-12 18:38:45,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:45,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243229406] [2024-09-12 18:38:45,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243229406] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:45,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:45,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:38:45,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948545921] [2024-09-12 18:38:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:45,716 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:38:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:45,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:38:45,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:38:45,717 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18:38:45,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:45,845 INFO L93 Difference]: Finished difference Result 171 states and 196 transitions. [2024-09-12 18:38:45,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:38:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2024-09-12 18:38:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:45,848 INFO L225 Difference]: With dead ends: 171 [2024-09-12 18:38:45,848 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 18:38:45,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 18:38:45,850 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:45,851 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 160 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 18:38:45,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2024-09-12 18:38:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 122 states have internal predecessors, (147), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 177 transitions. [2024-09-12 18:38:45,875 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 177 transitions. Word has length 23 [2024-09-12 18:38:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:45,879 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 177 transitions. [2024-09-12 18:38:45,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18:38:45,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 177 transitions. [2024-09-12 18:38:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:38:45,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:45,880 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] [2024-09-12 18:38:45,897 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 18:38:46,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:46,081 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:46,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:46,082 INFO L85 PathProgramCache]: Analyzing trace with hash -33664040, now seen corresponding path program 1 times [2024-09-12 18:38:46,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:46,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856053006] [2024-09-12 18:38:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:46,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535912924] [2024-09-12 18:38:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:46,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:46,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:46,112 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 18:38:46,113 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 18:38:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:46,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:38:46,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:46,263 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 18:38:46,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:46,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856053006] [2024-09-12 18:38:46,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:46,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535912924] [2024-09-12 18:38:46,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535912924] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:46,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:46,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73319845] [2024-09-12 18:38:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:46,265 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:46,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:46,266 INFO L87 Difference]: Start difference. First operand 142 states and 177 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:46,490 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2024-09-12 18:38:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:46,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-09-12 18:38:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:46,496 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:38:46,496 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:38:46,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:46,497 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 185 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:46,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 169 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:38:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2024-09-12 18:38:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 88 states have (on average 1.6590909090909092) internal successors, (146), 123 states have internal predecessors, (146), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2024-09-12 18:38:46,527 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 25 [2024-09-12 18:38:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:46,528 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2024-09-12 18:38:46,528 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:46,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2024-09-12 18:38:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:38:46,529 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:46,529 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] [2024-09-12 18:38:46,547 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 18:38:46,729 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:46,730 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:46,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1043585168, now seen corresponding path program 1 times [2024-09-12 18:38:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:46,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857693779] [2024-09-12 18:38:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:46,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:46,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859624933] [2024-09-12 18:38:46,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:46,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:46,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:46,753 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 18:38:46,755 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 18:38:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:46,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:38:46,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:46,887 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 18:38:46,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:46,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:46,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857693779] [2024-09-12 18:38:46,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:46,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859624933] [2024-09-12 18:38:46,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859624933] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:46,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:46,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682862432] [2024-09-12 18:38:46,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:46,889 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:46,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:46,890 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:47,141 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2024-09-12 18:38:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-09-12 18:38:47,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:47,143 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:38:47,143 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:38:47,143 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:47,144 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 181 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:47,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 172 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:38:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 144. [2024-09-12 18:38:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 124 states have internal predecessors, (145), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2024-09-12 18:38:47,183 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 26 [2024-09-12 18:38:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:47,183 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2024-09-12 18:38:47,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:38:47,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2024-09-12 18:38:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:38:47,184 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:47,184 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] [2024-09-12 18:38:47,201 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 18:38:47,385 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:38:47,385 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:47,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,386 INFO L85 PathProgramCache]: Analyzing trace with hash 668877472, now seen corresponding path program 1 times [2024-09-12 18:38:47,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:47,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053881198] [2024-09-12 18:38:47,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:47,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:47,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862590440] [2024-09-12 18:38:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:47,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:47,413 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 18:38:47,422 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 18:38:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:47,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:38:47,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:38:47,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:47,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:47,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053881198] [2024-09-12 18:38:47,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:47,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862590440] [2024-09-12 18:38:47,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862590440] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:47,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:47,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19491417] [2024-09-12 18:38:47,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:47,529 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:47,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:47,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:47,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:47,531 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 18:38:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:47,702 INFO L93 Difference]: Finished difference Result 167 states and 185 transitions. [2024-09-12 18:38:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:47,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 30 [2024-09-12 18:38:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:47,705 INFO L225 Difference]: With dead ends: 167 [2024-09-12 18:38:47,705 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 18:38:47,705 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 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 18:38:47,706 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 47 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:47,706 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 312 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:47,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 18:38:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2024-09-12 18:38:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 88 states have (on average 1.625) internal successors, (143), 123 states have internal predecessors, (143), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2024-09-12 18:38:47,727 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 30 [2024-09-12 18:38:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:47,727 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2024-09-12 18:38:47,728 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 18:38:47,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2024-09-12 18:38:47,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:38:47,729 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:47,729 INFO L216 NwaCegarLoop]: trace histogram [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 18:38:47,746 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:47,933 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:47,934 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:47,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1127278244, now seen corresponding path program 1 times [2024-09-12 18:38:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:47,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561674966] [2024-09-12 18:38:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:47,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:48,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:48,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561674966] [2024-09-12 18:38:48,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561674966] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:48,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:48,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:38:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159341737] [2024-09-12 18:38:48,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:48,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:48,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:48,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:48,136 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:48,339 INFO L93 Difference]: Finished difference Result 177 states and 191 transitions. [2024-09-12 18:38:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-09-12 18:38:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:48,341 INFO L225 Difference]: With dead ends: 177 [2024-09-12 18:38:48,341 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 18:38:48,342 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:48,343 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:48,343 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 466 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 18:38:48,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2024-09-12 18:38:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 126 states have internal predecessors, (146), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2024-09-12 18:38:48,362 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 34 [2024-09-12 18:38:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:48,362 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2024-09-12 18:38:48,362 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:48,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2024-09-12 18:38:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:38:48,364 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:48,364 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 18:38:48,364 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:38:48,364 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:48,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,364 INFO L85 PathProgramCache]: Analyzing trace with hash -585887109, now seen corresponding path program 1 times [2024-09-12 18:38:48,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:48,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062088809] [2024-09-12 18:38:48,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062088809] [2024-09-12 18:38:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062088809] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:48,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:48,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:38:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435398555] [2024-09-12 18:38:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:48,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:48,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:48,501 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:48,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:48,660 INFO L93 Difference]: Finished difference Result 243 states and 281 transitions. [2024-09-12 18:38:48,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:38:48,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-09-12 18:38:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:48,662 INFO L225 Difference]: With dead ends: 243 [2024-09-12 18:38:48,663 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 18:38:48,663 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:48,664 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 32 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:48,664 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 406 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 18:38:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-09-12 18:38:48,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 98 states have (on average 1.5612244897959184) internal successors, (153), 133 states have internal predecessors, (153), 16 states have call successors, (16), 8 states have call predecessors, (16), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:38:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2024-09-12 18:38:48,684 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 35 [2024-09-12 18:38:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:48,684 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2024-09-12 18:38:48,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:38:48,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2024-09-12 18:38:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:38:48,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:48,686 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 18:38:48,686 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:38:48,687 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:48,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash -396793027, now seen corresponding path program 1 times [2024-09-12 18:38:48,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:48,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861806564] [2024-09-12 18:38:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:48,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951332637] [2024-09-12 18:38:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:48,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:48,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:48,700 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 18:38:48,702 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 18:38:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:48,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:38:48,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:48,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:48,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861806564] [2024-09-12 18:38:48,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:48,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951332637] [2024-09-12 18:38:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951332637] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:48,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:48,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:48,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188872377] [2024-09-12 18:38:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:48,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:48,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:48,803 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:49,101 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2024-09-12 18:38:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:49,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 18:38:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:49,105 INFO L225 Difference]: With dead ends: 233 [2024-09-12 18:38:49,105 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:38:49,106 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 18:38:49,106 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 126 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:49,106 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 117 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:38:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:38:49,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 207. [2024-09-12 18:38:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 141 states have (on average 1.5886524822695036) internal successors, (224), 176 states have internal predecessors, (224), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:38:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 270 transitions. [2024-09-12 18:38:49,136 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 270 transitions. Word has length 37 [2024-09-12 18:38:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:49,136 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 270 transitions. [2024-09-12 18:38:49,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:49,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 270 transitions. [2024-09-12 18:38:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:38:49,139 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:49,139 INFO L216 NwaCegarLoop]: trace histogram [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 18:38:49,156 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 18:38:49,340 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,340 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:49,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,341 INFO L85 PathProgramCache]: Analyzing trace with hash 584318147, now seen corresponding path program 1 times [2024-09-12 18:38:49,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:49,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958607999] [2024-09-12 18:38:49,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:49,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1199163924] [2024-09-12 18:38:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:49,360 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 18:38:49,361 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 18:38:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:49,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:38:49,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:49,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:49,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:49,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958607999] [2024-09-12 18:38:49,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:49,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199163924] [2024-09-12 18:38:49,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199163924] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:49,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:49,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:49,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684328108] [2024-09-12 18:38:49,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:49,468 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:49,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:49,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:49,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:49,469 INFO L87 Difference]: Start difference. First operand 207 states and 270 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:49,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:49,646 INFO L93 Difference]: Finished difference Result 231 states and 295 transitions. [2024-09-12 18:38:49,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:49,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-09-12 18:38:49,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:49,650 INFO L225 Difference]: With dead ends: 231 [2024-09-12 18:38:49,650 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:38:49,650 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 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 18:38:49,651 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 124 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:49,651 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 117 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:38:49,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2024-09-12 18:38:49,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 142 states have (on average 1.556338028169014) internal successors, (221), 177 states have internal predecessors, (221), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:38:49,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 267 transitions. [2024-09-12 18:38:49,682 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 267 transitions. Word has length 38 [2024-09-12 18:38:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:49,682 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 267 transitions. [2024-09-12 18:38:49,682 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:38:49,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 267 transitions. [2024-09-12 18:38:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:38:49,684 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:49,684 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:38:49,701 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 18:38:49,888 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,889 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:49,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1803951921, now seen corresponding path program 1 times [2024-09-12 18:38:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278123743] [2024-09-12 18:38:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:49,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640445446] [2024-09-12 18:38:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:49,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:49,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:49,902 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 18:38:49,904 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 18:38:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:49,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:38:49,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:38:49,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:49,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:49,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278123743] [2024-09-12 18:38:49,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:49,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640445446] [2024-09-12 18:38:49,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640445446] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:49,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:49,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:49,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886630026] [2024-09-12 18:38:49,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:49,996 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:49,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:49,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:49,998 INFO L87 Difference]: Start difference. First operand 208 states and 267 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:38:50,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:50,466 INFO L93 Difference]: Finished difference Result 234 states and 299 transitions. [2024-09-12 18:38:50,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:38:50,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-09-12 18:38:50,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:50,468 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:38:50,468 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 18:38:50,469 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 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 18:38:50,469 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 41 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:50,469 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:38:50,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 18:38:50,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2024-09-12 18:38:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 184 states have internal predecessors, (227), 25 states have call successors, (25), 10 states have call predecessors, (25), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-09-12 18:38:50,502 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 42 [2024-09-12 18:38:50,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:50,502 INFO L474 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-09-12 18:38:50,502 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:38:50,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:50,503 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-09-12 18:38:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:38:50,504 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:50,504 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:50,521 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:38:50,708 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:38:50,709 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:50,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:50,709 INFO L85 PathProgramCache]: Analyzing trace with hash 157098285, now seen corresponding path program 1 times [2024-09-12 18:38:50,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:50,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656034586] [2024-09-12 18:38:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:50,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:38:50,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:50,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656034586] [2024-09-12 18:38:50,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656034586] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:50,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:38:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683191569] [2024-09-12 18:38:50,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:50,937 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:38:50,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:50,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:38:50,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:38:50,938 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:38:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:51,277 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2024-09-12 18:38:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:38:51,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-09-12 18:38:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:51,281 INFO L225 Difference]: With dead ends: 227 [2024-09-12 18:38:51,281 INFO L226 Difference]: Without dead ends: 224 [2024-09-12 18:38:51,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:38:51,282 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 92 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:51,282 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 265 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-09-12 18:38:51,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-09-12 18:38:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 154 states have (on average 1.4870129870129871) internal successors, (229), 189 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:51,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 277 transitions. [2024-09-12 18:38:51,319 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 277 transitions. Word has length 56 [2024-09-12 18:38:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:51,319 INFO L474 AbstractCegarLoop]: Abstraction has 224 states and 277 transitions. [2024-09-12 18:38:51,319 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:38:51,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 277 transitions. [2024-09-12 18:38:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:38:51,322 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:51,322 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:51,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:38:51,322 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:51,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash 647755168, now seen corresponding path program 1 times [2024-09-12 18:38:51,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255204316] [2024-09-12 18:38:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:51,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:51,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:51,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255204316] [2024-09-12 18:38:51,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255204316] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:51,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:51,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:51,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989945096] [2024-09-12 18:38:51,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:51,413 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:51,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:51,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:51,418 INFO L87 Difference]: Start difference. First operand 224 states and 277 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,056 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2024-09-12 18:38:52,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:52,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-09-12 18:38:52,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,058 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:38:52,058 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:38:52,059 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:52,059 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 156 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,059 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 111 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:38:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:38:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 226. [2024-09-12 18:38:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 191 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2024-09-12 18:38:52,091 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 58 [2024-09-12 18:38:52,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:52,091 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2024-09-12 18:38:52,091 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:52,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2024-09-12 18:38:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:38:52,092 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:52,092 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:52,093 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:38:52,093 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:52,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1394426161, now seen corresponding path program 1 times [2024-09-12 18:38:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:52,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087726036] [2024-09-12 18:38:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:52,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:52,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087726036] [2024-09-12 18:38:52,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087726036] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:52,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672270562] [2024-09-12 18:38:52,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:52,167 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:52,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:52,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:52,168 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,430 INFO L93 Difference]: Finished difference Result 260 states and 302 transitions. [2024-09-12 18:38:52,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-09-12 18:38:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,432 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:38:52,432 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:38:52,433 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:38:52,433 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 153 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,434 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 115 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:52,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:38:52,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 228. [2024-09-12 18:38:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4493670886075949) internal successors, (229), 193 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2024-09-12 18:38:52,466 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 59 [2024-09-12 18:38:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:52,467 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2024-09-12 18:38:52,467 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:52,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2024-09-12 18:38:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:38:52,468 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:52,468 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:52,468 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:38:52,468 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:52,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -13740697, now seen corresponding path program 1 times [2024-09-12 18:38:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:52,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411356910] [2024-09-12 18:38:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:52,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:52,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411356910] [2024-09-12 18:38:52,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411356910] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:52,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:52,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:38:52,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542997547] [2024-09-12 18:38:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:52,523 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:38:52,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:38:52,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:38:52,524 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:52,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,652 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2024-09-12 18:38:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:38:52,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2024-09-12 18:38:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,654 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:38:52,654 INFO L226 Difference]: Without dead ends: 233 [2024-09-12 18:38:52,654 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 18:38:52,655 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 27 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,655 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 206 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-09-12 18:38:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2024-09-12 18:38:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 193 states have internal predecessors, (228), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:38:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2024-09-12 18:38:52,687 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 61 [2024-09-12 18:38:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:52,688 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2024-09-12 18:38:52,688 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:52,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2024-09-12 18:38:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:38:52,689 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:52,689 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:52,689 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:38:52,690 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:52,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:52,690 INFO L85 PathProgramCache]: Analyzing trace with hash -425961467, now seen corresponding path program 1 times [2024-09-12 18:38:52,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:52,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321280230] [2024-09-12 18:38:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:52,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:52,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321280230] [2024-09-12 18:38:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321280230] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:38:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220518273] [2024-09-12 18:38:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:52,775 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:38:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:38:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:52,775 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:52,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:52,984 INFO L93 Difference]: Finished difference Result 341 states and 429 transitions. [2024-09-12 18:38:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:38:52,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-09-12 18:38:52,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:52,986 INFO L225 Difference]: With dead ends: 341 [2024-09-12 18:38:52,986 INFO L226 Difference]: Without dead ends: 340 [2024-09-12 18:38:52,987 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:38:52,987 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 216 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:52,987 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 272 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-09-12 18:38:53,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 306. [2024-09-12 18:38:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 225 states have (on average 1.5155555555555555) internal successors, (341), 261 states have internal predecessors, (341), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:38:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 411 transitions. [2024-09-12 18:38:53,047 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 411 transitions. Word has length 62 [2024-09-12 18:38:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:53,047 INFO L474 AbstractCegarLoop]: Abstraction has 306 states and 411 transitions. [2024-09-12 18:38:53,048 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:53,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 411 transitions. [2024-09-12 18:38:53,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:38:53,048 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:53,049 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:53,049 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:38:53,049 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:53,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -425960185, now seen corresponding path program 1 times [2024-09-12 18:38:53,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:53,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756352589] [2024-09-12 18:38:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:53,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:53,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:53,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756352589] [2024-09-12 18:38:53,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756352589] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:53,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:53,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:38:53,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851870913] [2024-09-12 18:38:53,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:53,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:38:53,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:53,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:38:53,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:53,147 INFO L87 Difference]: Start difference. First operand 306 states and 411 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:53,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:53,866 INFO L93 Difference]: Finished difference Result 417 states and 564 transitions. [2024-09-12 18:38:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:38:53,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-09-12 18:38:53,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:53,870 INFO L225 Difference]: With dead ends: 417 [2024-09-12 18:38:53,871 INFO L226 Difference]: Without dead ends: 416 [2024-09-12 18:38:53,871 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:38:53,872 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 316 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:53,872 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 349 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:38:53,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-09-12 18:38:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 376. [2024-09-12 18:38:53,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 285 states have (on average 1.5228070175438597) internal successors, (434), 321 states have internal predecessors, (434), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:53,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 524 transitions. [2024-09-12 18:38:53,949 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 524 transitions. Word has length 62 [2024-09-12 18:38:53,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:53,949 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 524 transitions. [2024-09-12 18:38:53,949 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:53,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 524 transitions. [2024-09-12 18:38:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:38:53,951 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:53,952 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:53,952 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:38:53,952 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:53,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash -319903447, now seen corresponding path program 1 times [2024-09-12 18:38:53,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:53,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583097769] [2024-09-12 18:38:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:53,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,040 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:54,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583097769] [2024-09-12 18:38:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583097769] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:54,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:54,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:38:54,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644971483] [2024-09-12 18:38:54,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:54,041 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:38:54,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:38:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:38:54,042 INFO L87 Difference]: Start difference. First operand 376 states and 524 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:54,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:54,377 INFO L93 Difference]: Finished difference Result 403 states and 545 transitions. [2024-09-12 18:38:54,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:38:54,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-09-12 18:38:54,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:54,380 INFO L225 Difference]: With dead ends: 403 [2024-09-12 18:38:54,380 INFO L226 Difference]: Without dead ends: 401 [2024-09-12 18:38:54,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:38:54,381 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:54,381 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 241 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:38:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-09-12 18:38:54,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 380. [2024-09-12 18:38:54,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.5155709342560553) internal successors, (438), 325 states have internal predecessors, (438), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:54,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 528 transitions. [2024-09-12 18:38:54,451 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 528 transitions. Word has length 63 [2024-09-12 18:38:54,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:54,451 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 528 transitions. [2024-09-12 18:38:54,451 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:38:54,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:54,452 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 528 transitions. [2024-09-12 18:38:54,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:38:54,453 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:54,453 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 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 18:38:54,453 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:38:54,453 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:54,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:54,453 INFO L85 PathProgramCache]: Analyzing trace with hash 288980233, now seen corresponding path program 1 times [2024-09-12 18:38:54,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933515170] [2024-09-12 18:38:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:54,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:54,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:54,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933515170] [2024-09-12 18:38:54,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933515170] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:54,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122002513] [2024-09-12 18:38:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:54,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:54,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:54,599 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 18:38:54,610 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 18:38:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:54,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:38:54,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:38:54,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:54,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122002513] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:54,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:38:54,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-09-12 18:38:54,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729812352] [2024-09-12 18:38:54,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:54,775 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:38:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:54,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:38:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:38:54,776 INFO L87 Difference]: Start difference. First operand 380 states and 528 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:54,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:54,936 INFO L93 Difference]: Finished difference Result 380 states and 528 transitions. [2024-09-12 18:38:54,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:54,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-09-12 18:38:54,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:54,940 INFO L225 Difference]: With dead ends: 380 [2024-09-12 18:38:54,940 INFO L226 Difference]: Without dead ends: 378 [2024-09-12 18:38:54,940 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:38:54,941 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 76 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:54,941 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 443 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:38:54,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-09-12 18:38:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-09-12 18:38:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 323 states have internal predecessors, (426), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:38:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 516 transitions. [2024-09-12 18:38:55,003 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 516 transitions. Word has length 66 [2024-09-12 18:38:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:55,003 INFO L474 AbstractCegarLoop]: Abstraction has 378 states and 516 transitions. [2024-09-12 18:38:55,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:38:55,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 516 transitions. [2024-09-12 18:38:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:38:55,004 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:55,004 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-09-12 18:38:55,021 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 18:38:55,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:38:55,207 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:55,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash 368452685, now seen corresponding path program 1 times [2024-09-12 18:38:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:55,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242155392] [2024-09-12 18:38:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:55,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:55,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242155392] [2024-09-12 18:38:55,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242155392] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:55,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393646244] [2024-09-12 18:38:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:55,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:55,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:55,332 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 18:38:55,334 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 18:38:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:55,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:38:55,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:38:55,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:55,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393646244] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:38:55,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:38:55,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2024-09-12 18:38:55,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758157952] [2024-09-12 18:38:55,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:38:55,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:38:55,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:55,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:38:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:38:55,638 INFO L87 Difference]: Start difference. First operand 378 states and 516 transitions. Second operand has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:38:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:56,043 INFO L93 Difference]: Finished difference Result 575 states and 732 transitions. [2024-09-12 18:38:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:38:56,046 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) Word has length 67 [2024-09-12 18:38:56,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:56,049 INFO L225 Difference]: With dead ends: 575 [2024-09-12 18:38:56,050 INFO L226 Difference]: Without dead ends: 558 [2024-09-12 18:38:56,050 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:38:56,051 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 207 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:56,052 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 720 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:38:56,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-09-12 18:38:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 510. [2024-09-12 18:38:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 399 states have (on average 1.443609022556391) internal successors, (576), 436 states have internal predecessors, (576), 57 states have call successors, (57), 23 states have call predecessors, (57), 22 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:38:56,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 687 transitions. [2024-09-12 18:38:56,144 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 687 transitions. Word has length 67 [2024-09-12 18:38:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:56,144 INFO L474 AbstractCegarLoop]: Abstraction has 510 states and 687 transitions. [2024-09-12 18:38:56,144 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:38:56,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 687 transitions. [2024-09-12 18:38:56,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:38:56,145 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:56,146 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:38:56,163 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 18:38:56,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:56,346 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:56,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:56,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1858588721, now seen corresponding path program 1 times [2024-09-12 18:38:56,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:56,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968621644] [2024-09-12 18:38:56,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:56,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:38:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:38:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:38:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:38:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:38:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:38:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:38:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:38:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968621644] [2024-09-12 18:38:56,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968621644] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:56,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267055524] [2024-09-12 18:38:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:56,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:56,506 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 18:38:56,507 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 18:38:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:56,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:38:56,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:38:56,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:38:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:38:56,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267055524] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:38:56,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:38:56,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 9] total 13 [2024-09-12 18:38:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440292247] [2024-09-12 18:38:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:56,784 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:38:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:56,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:38:56,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:38:56,785 INFO L87 Difference]: Start difference. First operand 510 states and 687 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:57,324 INFO L93 Difference]: Finished difference Result 539 states and 729 transitions. [2024-09-12 18:38:57,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:38:57,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-09-12 18:38:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:57,328 INFO L225 Difference]: With dead ends: 539 [2024-09-12 18:38:57,329 INFO L226 Difference]: Without dead ends: 537 [2024-09-12 18:38:57,329 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:38:57,330 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 34 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:57,330 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 257 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:38:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-09-12 18:38:57,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 518. [2024-09-12 18:38:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 405 states have (on average 1.434567901234568) internal successors, (581), 442 states have internal predecessors, (581), 57 states have call successors, (57), 25 states have call predecessors, (57), 24 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:38:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 692 transitions. [2024-09-12 18:38:57,460 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 692 transitions. Word has length 68 [2024-09-12 18:38:57,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:57,460 INFO L474 AbstractCegarLoop]: Abstraction has 518 states and 692 transitions. [2024-09-12 18:38:57,460 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:38:57,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,461 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 692 transitions. [2024-09-12 18:38:57,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:38:57,462 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:57,462 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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 18:38:57,478 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:38:57,662 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:38:57,663 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:57,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash 860044850, now seen corresponding path program 1 times [2024-09-12 18:38:57,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:57,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36381296] [2024-09-12 18:38:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:57,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:57,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15138723] [2024-09-12 18:38:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:57,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:57,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:57,684 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 18:38:57,686 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 18:38:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:57,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:38:57,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:38:58,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:38:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:38:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36381296] [2024-09-12 18:38:58,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:38:58,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15138723] [2024-09-12 18:38:58,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15138723] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:38:58,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:38:58,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:38:58,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650571682] [2024-09-12 18:38:58,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:38:58,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:38:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:38:58,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:38:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:38:58,043 INFO L87 Difference]: Start difference. First operand 518 states and 692 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:38:58,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:38:58,565 INFO L93 Difference]: Finished difference Result 715 states and 976 transitions. [2024-09-12 18:38:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:38:58,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 76 [2024-09-12 18:38:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:38:58,569 INFO L225 Difference]: With dead ends: 715 [2024-09-12 18:38:58,569 INFO L226 Difference]: Without dead ends: 706 [2024-09-12 18:38:58,569 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:38:58,570 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 297 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:38:58,570 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 245 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:38:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-09-12 18:38:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 675. [2024-09-12 18:38:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 540 states have (on average 1.4148148148148147) internal successors, (764), 579 states have internal predecessors, (764), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:38:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 919 transitions. [2024-09-12 18:38:58,724 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 919 transitions. Word has length 76 [2024-09-12 18:38:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:38:58,725 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 919 transitions. [2024-09-12 18:38:58,725 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:38:58,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 919 transitions. [2024-09-12 18:38:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:38:58,726 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:38:58,726 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-09-12 18:38:58,743 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:38:58,927 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:58,927 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:38:58,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:38:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash 891586642, now seen corresponding path program 1 times [2024-09-12 18:38:58,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:38:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602313887] [2024-09-12 18:38:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:38:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:38:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875273655] [2024-09-12 18:38:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:38:58,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:38:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:38:58,945 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 18:38:58,947 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 18:38:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:38:59,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:38:59,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:38:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:38:59,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:00,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:00,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602313887] [2024-09-12 18:39:00,014 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:00,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875273655] [2024-09-12 18:39:00,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875273655] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:00,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:00,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:00,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159275202] [2024-09-12 18:39:00,015 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:00,015 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:00,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:00,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:00,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:00,016 INFO L87 Difference]: Start difference. First operand 675 states and 919 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:00,524 INFO L93 Difference]: Finished difference Result 740 states and 993 transitions. [2024-09-12 18:39:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 77 [2024-09-12 18:39:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:00,528 INFO L225 Difference]: With dead ends: 740 [2024-09-12 18:39:00,529 INFO L226 Difference]: Without dead ends: 737 [2024-09-12 18:39:00,529 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:00,529 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 148 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:00,530 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 337 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-09-12 18:39:00,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 704. [2024-09-12 18:39:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 565 states have (on average 1.4123893805309735) internal successors, (798), 603 states have internal predecessors, (798), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 961 transitions. [2024-09-12 18:39:00,685 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 961 transitions. Word has length 77 [2024-09-12 18:39:00,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:00,685 INFO L474 AbstractCegarLoop]: Abstraction has 704 states and 961 transitions. [2024-09-12 18:39:00,686 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:00,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:00,686 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 961 transitions. [2024-09-12 18:39:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:00,687 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:00,687 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:00,706 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:00,887 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:39:00,888 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:00,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1869382196, now seen corresponding path program 1 times [2024-09-12 18:39:00,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:00,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041126706] [2024-09-12 18:39:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:00,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:01,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:01,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041126706] [2024-09-12 18:39:01,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041126706] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:01,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:01,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:01,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524828895] [2024-09-12 18:39:01,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:01,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:01,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:01,021 INFO L87 Difference]: Start difference. First operand 704 states and 961 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:02,422 INFO L93 Difference]: Finished difference Result 978 states and 1363 transitions. [2024-09-12 18:39:02,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:02,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-09-12 18:39:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:02,428 INFO L225 Difference]: With dead ends: 978 [2024-09-12 18:39:02,428 INFO L226 Difference]: Without dead ends: 975 [2024-09-12 18:39:02,428 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:02,429 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 171 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:02,433 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 291 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:39:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-09-12 18:39:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 719. [2024-09-12 18:39:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 581 states have (on average 1.395869191049914) internal successors, (811), 614 states have internal predecessors, (811), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 974 transitions. [2024-09-12 18:39:02,624 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 974 transitions. Word has length 78 [2024-09-12 18:39:02,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:02,625 INFO L474 AbstractCegarLoop]: Abstraction has 719 states and 974 transitions. [2024-09-12 18:39:02,625 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:02,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,625 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 974 transitions. [2024-09-12 18:39:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:02,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:02,626 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:02,626 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-12 18:39:02,627 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:02,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,628 INFO L85 PathProgramCache]: Analyzing trace with hash -22819434, now seen corresponding path program 1 times [2024-09-12 18:39:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:02,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448844114] [2024-09-12 18:39:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448844114] [2024-09-12 18:39:02,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448844114] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941423874] [2024-09-12 18:39:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:02,778 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 18:39:02,780 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 18:39:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:02,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:02,932 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:02,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:03,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941423874] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:03,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 18 [2024-09-12 18:39:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960993128] [2024-09-12 18:39:03,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:03,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:39:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:03,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:39:03,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:03,074 INFO L87 Difference]: Start difference. First operand 719 states and 974 transitions. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-12 18:39:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:03,560 INFO L93 Difference]: Finished difference Result 1147 states and 1497 transitions. [2024-09-12 18:39:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:39:03,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) Word has length 78 [2024-09-12 18:39:03,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:03,565 INFO L225 Difference]: With dead ends: 1147 [2024-09-12 18:39:03,565 INFO L226 Difference]: Without dead ends: 878 [2024-09-12 18:39:03,566 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=999, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:39:03,567 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 272 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:03,568 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 812 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:03,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-09-12 18:39:03,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 818. [2024-09-12 18:39:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 661 states have (on average 1.384266263237519) internal successors, (915), 694 states have internal predecessors, (915), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1099 transitions. [2024-09-12 18:39:03,771 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1099 transitions. Word has length 78 [2024-09-12 18:39:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:03,772 INFO L474 AbstractCegarLoop]: Abstraction has 818 states and 1099 transitions. [2024-09-12 18:39:03,772 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-12 18:39:03,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1099 transitions. [2024-09-12 18:39:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:03,773 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:03,773 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:03,794 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 18:39:03,974 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:39:03,974 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:03,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:03,974 INFO L85 PathProgramCache]: Analyzing trace with hash -22819416, now seen corresponding path program 1 times [2024-09-12 18:39:03,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:03,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925329002] [2024-09-12 18:39:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764803754] [2024-09-12 18:39:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:03,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:03,990 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 18:39:03,992 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 18:39:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:04,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:04,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:04,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925329002] [2024-09-12 18:39:04,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:04,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764803754] [2024-09-12 18:39:04,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764803754] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:04,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:04,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:39:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555707425] [2024-09-12 18:39:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:04,197 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:04,198 INFO L87 Difference]: Start difference. First operand 818 states and 1099 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:04,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:04,632 INFO L93 Difference]: Finished difference Result 847 states and 1139 transitions. [2024-09-12 18:39:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:04,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2024-09-12 18:39:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:04,637 INFO L225 Difference]: With dead ends: 847 [2024-09-12 18:39:04,637 INFO L226 Difference]: Without dead ends: 843 [2024-09-12 18:39:04,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:04,638 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 168 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:04,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 368 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:04,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-09-12 18:39:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 814. [2024-09-12 18:39:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 661 states have (on average 1.3570347957639939) internal successors, (897), 690 states have internal predecessors, (897), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1081 transitions. [2024-09-12 18:39:04,846 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1081 transitions. Word has length 78 [2024-09-12 18:39:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:04,847 INFO L474 AbstractCegarLoop]: Abstraction has 814 states and 1081 transitions. [2024-09-12 18:39:04,847 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:04,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1081 transitions. [2024-09-12 18:39:04,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:04,848 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:04,848 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:04,865 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 18:39:05,048 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:05,050 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:05,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2116273300, now seen corresponding path program 1 times [2024-09-12 18:39:05,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:05,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591603603] [2024-09-12 18:39:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:05,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068570445] [2024-09-12 18:39:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:05,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:05,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:05,066 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 18:39:05,068 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 18:39:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:39:05,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:05,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:05,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:05,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591603603] [2024-09-12 18:39:05,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:05,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068570445] [2024-09-12 18:39:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068570445] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:05,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:05,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:05,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823949163] [2024-09-12 18:39:05,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:05,578 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:05,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:05,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:05,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:05,579 INFO L87 Difference]: Start difference. First operand 814 states and 1081 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:06,152 INFO L93 Difference]: Finished difference Result 839 states and 1095 transitions. [2024-09-12 18:39:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:06,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 79 [2024-09-12 18:39:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:06,157 INFO L225 Difference]: With dead ends: 839 [2024-09-12 18:39:06,157 INFO L226 Difference]: Without dead ends: 836 [2024-09-12 18:39:06,158 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:06,162 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 269 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:06,163 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 298 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:06,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-09-12 18:39:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 814. [2024-09-12 18:39:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 661 states have (on average 1.3509833585476552) internal successors, (893), 690 states have internal predecessors, (893), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1077 transitions. [2024-09-12 18:39:06,396 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1077 transitions. Word has length 79 [2024-09-12 18:39:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:06,396 INFO L474 AbstractCegarLoop]: Abstraction has 814 states and 1077 transitions. [2024-09-12 18:39:06,397 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:06,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1077 transitions. [2024-09-12 18:39:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:06,399 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:06,399 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:06,415 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 18:39:06,599 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:39:06,600 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:06,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,600 INFO L85 PathProgramCache]: Analyzing trace with hash -707401800, now seen corresponding path program 1 times [2024-09-12 18:39:06,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:06,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362548785] [2024-09-12 18:39:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:06,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42657307] [2024-09-12 18:39:06,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:06,619 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 18:39:06,621 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 18:39:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:06,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:06,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:07,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362548785] [2024-09-12 18:39:07,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:07,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42657307] [2024-09-12 18:39:07,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42657307] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:07,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:07,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:39:07,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370100227] [2024-09-12 18:39:07,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:07,160 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:07,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:07,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:07,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:07,161 INFO L87 Difference]: Start difference. First operand 814 states and 1077 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:07,617 INFO L93 Difference]: Finished difference Result 1183 states and 1644 transitions. [2024-09-12 18:39:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-09-12 18:39:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:07,623 INFO L225 Difference]: With dead ends: 1183 [2024-09-12 18:39:07,623 INFO L226 Difference]: Without dead ends: 1179 [2024-09-12 18:39:07,624 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:07,624 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 195 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:07,624 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 407 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-09-12 18:39:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 965. [2024-09-12 18:39:07,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 792 states have (on average 1.35479797979798) internal successors, (1073), 821 states have internal predecessors, (1073), 114 states have call successors, (114), 33 states have call predecessors, (114), 32 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-09-12 18:39:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1297 transitions. [2024-09-12 18:39:07,847 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1297 transitions. Word has length 79 [2024-09-12 18:39:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:07,847 INFO L474 AbstractCegarLoop]: Abstraction has 965 states and 1297 transitions. [2024-09-12 18:39:07,847 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:07,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1297 transitions. [2024-09-12 18:39:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:07,848 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:07,848 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 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, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:07,864 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:08,049 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:08,049 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:08,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2028294716, now seen corresponding path program 1 times [2024-09-12 18:39:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:08,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726284931] [2024-09-12 18:39:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:08,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174171575] [2024-09-12 18:39:08,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:08,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:08,063 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:08,065 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:39:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:39:08,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:08,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:08,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:08,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726284931] [2024-09-12 18:39:08,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:08,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174171575] [2024-09-12 18:39:08,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174171575] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:08,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:08,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-09-12 18:39:08,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280161003] [2024-09-12 18:39:08,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:08,846 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:08,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:08,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:08,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:08,847 INFO L87 Difference]: Start difference. First operand 965 states and 1297 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:09,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:09,686 INFO L93 Difference]: Finished difference Result 1116 states and 1508 transitions. [2024-09-12 18:39:09,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:09,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-09-12 18:39:09,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:09,690 INFO L225 Difference]: With dead ends: 1116 [2024-09-12 18:39:09,690 INFO L226 Difference]: Without dead ends: 1108 [2024-09-12 18:39:09,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:09,691 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 181 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:09,691 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 294 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-09-12 18:39:10,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1082. [2024-09-12 18:39:10,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 890 states have (on average 1.3561797752808988) internal successors, (1207), 918 states have internal predecessors, (1207), 131 states have call successors, (131), 35 states have call predecessors, (131), 34 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 18:39:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1466 transitions. [2024-09-12 18:39:10,014 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1466 transitions. Word has length 83 [2024-09-12 18:39:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:10,015 INFO L474 AbstractCegarLoop]: Abstraction has 1082 states and 1466 transitions. [2024-09-12 18:39:10,015 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:10,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1466 transitions. [2024-09-12 18:39:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:10,017 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:10,017 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:10,034 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 18:39:10,217 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:10,218 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:10,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1526757466, now seen corresponding path program 1 times [2024-09-12 18:39:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252268044] [2024-09-12 18:39:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:10,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:10,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603658635] [2024-09-12 18:39:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:10,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:10,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:10,234 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:10,236 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:39:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:39:10,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:10,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-12 18:39:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252268044] [2024-09-12 18:39:10,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603658635] [2024-09-12 18:39:10,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603658635] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:10,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:10,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:39:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687927344] [2024-09-12 18:39:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:10,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:10,471 INFO L87 Difference]: Start difference. First operand 1082 states and 1466 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:11,139 INFO L93 Difference]: Finished difference Result 1104 states and 1487 transitions. [2024-09-12 18:39:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:11,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-09-12 18:39:11,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:11,143 INFO L225 Difference]: With dead ends: 1104 [2024-09-12 18:39:11,143 INFO L226 Difference]: Without dead ends: 1102 [2024-09-12 18:39:11,144 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:11,144 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 47 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:11,144 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 149 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-09-12 18:39:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2024-09-12 18:39:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 905 states have (on average 1.3502762430939226) internal successors, (1222), 933 states have internal predecessors, (1222), 131 states have call successors, (131), 40 states have call predecessors, (131), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 18:39:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1481 transitions. [2024-09-12 18:39:11,431 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1481 transitions. Word has length 83 [2024-09-12 18:39:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:11,432 INFO L474 AbstractCegarLoop]: Abstraction has 1102 states and 1481 transitions. [2024-09-12 18:39:11,432 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:11,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1481 transitions. [2024-09-12 18:39:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:39:11,433 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:11,433 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:11,450 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:39:11,634 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:39:11,634 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:11,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,634 INFO L85 PathProgramCache]: Analyzing trace with hash 770167829, now seen corresponding path program 1 times [2024-09-12 18:39:11,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:11,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139404189] [2024-09-12 18:39:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:11,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:11,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139404189] [2024-09-12 18:39:11,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139404189] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:11,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884775630] [2024-09-12 18:39:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:11,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:11,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:11,729 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:11,731 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:39:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:11,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:11,827 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:11,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884775630] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:11,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:11,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-09-12 18:39:11,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492047650] [2024-09-12 18:39:11,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:11,931 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:11,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:11,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:11,931 INFO L87 Difference]: Start difference. First operand 1102 states and 1481 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:13,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:13,112 INFO L93 Difference]: Finished difference Result 1697 states and 2379 transitions. [2024-09-12 18:39:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:13,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2024-09-12 18:39:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:13,119 INFO L225 Difference]: With dead ends: 1697 [2024-09-12 18:39:13,119 INFO L226 Difference]: Without dead ends: 1695 [2024-09-12 18:39:13,120 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:13,120 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 314 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:13,120 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 443 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-09-12 18:39:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1398. [2024-09-12 18:39:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1150 states have (on average 1.357391304347826) internal successors, (1561), 1177 states have internal predecessors, (1561), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:13,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1924 transitions. [2024-09-12 18:39:13,463 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1924 transitions. Word has length 99 [2024-09-12 18:39:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:13,463 INFO L474 AbstractCegarLoop]: Abstraction has 1398 states and 1924 transitions. [2024-09-12 18:39:13,463 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:13,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1924 transitions. [2024-09-12 18:39:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:39:13,464 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:13,464 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:13,477 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:39:13,667 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:13,668 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:13,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:13,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1894600966, now seen corresponding path program 1 times [2024-09-12 18:39:13,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:13,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682984013] [2024-09-12 18:39:13,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:13,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682984013] [2024-09-12 18:39:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682984013] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:13,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419029999] [2024-09-12 18:39:13,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:13,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:13,769 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:13,771 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:39:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:13,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:13,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:14,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419029999] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:14,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:14,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2024-09-12 18:39:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794388592] [2024-09-12 18:39:14,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:14,020 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:14,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:14,022 INFO L87 Difference]: Start difference. First operand 1398 states and 1924 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:15,181 INFO L93 Difference]: Finished difference Result 1729 states and 2378 transitions. [2024-09-12 18:39:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:39:15,182 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) Word has length 100 [2024-09-12 18:39:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:15,188 INFO L225 Difference]: With dead ends: 1729 [2024-09-12 18:39:15,188 INFO L226 Difference]: Without dead ends: 1727 [2024-09-12 18:39:15,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:39:15,189 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 853 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:15,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 577 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-09-12 18:39:15,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1404. [2024-09-12 18:39:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1157 states have (on average 1.3197925669835782) internal successors, (1527), 1183 states have internal predecessors, (1527), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1890 transitions. [2024-09-12 18:39:15,592 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1890 transitions. Word has length 100 [2024-09-12 18:39:15,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:15,592 INFO L474 AbstractCegarLoop]: Abstraction has 1404 states and 1890 transitions. [2024-09-12 18:39:15,592 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:15,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1890 transitions. [2024-09-12 18:39:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:39:15,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:15,593 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:15,605 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:15,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:39:15,794 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:15,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,794 INFO L85 PathProgramCache]: Analyzing trace with hash 354608850, now seen corresponding path program 1 times [2024-09-12 18:39:15,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:15,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038082818] [2024-09-12 18:39:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:15,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:15,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:15,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038082818] [2024-09-12 18:39:15,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038082818] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:15,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:15,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:15,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252963170] [2024-09-12 18:39:15,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:15,859 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:15,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:15,860 INFO L87 Difference]: Start difference. First operand 1404 states and 1890 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:16,263 INFO L93 Difference]: Finished difference Result 1404 states and 1890 transitions. [2024-09-12 18:39:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:16,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-09-12 18:39:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:16,268 INFO L225 Difference]: With dead ends: 1404 [2024-09-12 18:39:16,268 INFO L226 Difference]: Without dead ends: 1403 [2024-09-12 18:39:16,269 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 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 18:39:16,269 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:16,269 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 196 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:16,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-09-12 18:39:16,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1403. [2024-09-12 18:39:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1157 states have (on average 1.3120138288677614) internal successors, (1518), 1182 states have internal predecessors, (1518), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1881 transitions. [2024-09-12 18:39:16,652 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1881 transitions. Word has length 102 [2024-09-12 18:39:16,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:16,652 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1881 transitions. [2024-09-12 18:39:16,652 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:16,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:16,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1881 transitions. [2024-09-12 18:39:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:39:16,653 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:16,653 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:16,654 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-09-12 18:39:16,654 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:16,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1476692948, now seen corresponding path program 1 times [2024-09-12 18:39:16,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:16,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197115233] [2024-09-12 18:39:16,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:16,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:16,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197115233] [2024-09-12 18:39:16,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197115233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:16,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050983737] [2024-09-12 18:39:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:16,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:16,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:16,754 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:39:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:16,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:16,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:16,949 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:16,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:16,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050983737] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:16,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:16,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:39:16,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070425278] [2024-09-12 18:39:16,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:16,951 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:16,951 INFO L87 Difference]: Start difference. First operand 1403 states and 1881 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:17,608 INFO L93 Difference]: Finished difference Result 1424 states and 1914 transitions. [2024-09-12 18:39:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-09-12 18:39:17,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:17,615 INFO L225 Difference]: With dead ends: 1424 [2024-09-12 18:39:17,615 INFO L226 Difference]: Without dead ends: 1423 [2024-09-12 18:39:17,616 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:17,616 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 81 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:17,616 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 156 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:17,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-09-12 18:39:18,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1402. [2024-09-12 18:39:18,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1157 states have (on average 1.3059636992221262) internal successors, (1511), 1181 states have internal predecessors, (1511), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1874 transitions. [2024-09-12 18:39:18,108 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1874 transitions. Word has length 104 [2024-09-12 18:39:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:18,109 INFO L474 AbstractCegarLoop]: Abstraction has 1402 states and 1874 transitions. [2024-09-12 18:39:18,109 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:18,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1874 transitions. [2024-09-12 18:39:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:39:18,110 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:18,110 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:18,125 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:18,311 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:39:18,311 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:18,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1467158724, now seen corresponding path program 1 times [2024-09-12 18:39:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:18,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484867363] [2024-09-12 18:39:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:18,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:18,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484867363] [2024-09-12 18:39:18,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484867363] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:18,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047095208] [2024-09-12 18:39:18,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:18,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:18,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:18,423 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:18,425 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:39:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:18,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:18,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:18,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:18,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047095208] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:18,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:18,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-09-12 18:39:18,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112163090] [2024-09-12 18:39:18,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:18,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:18,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:18,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:18,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:18,749 INFO L87 Difference]: Start difference. First operand 1402 states and 1874 transitions. Second operand has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:19,860 INFO L93 Difference]: Finished difference Result 1654 states and 2219 transitions. [2024-09-12 18:39:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:19,861 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 105 [2024-09-12 18:39:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:19,868 INFO L225 Difference]: With dead ends: 1654 [2024-09-12 18:39:19,869 INFO L226 Difference]: Without dead ends: 1652 [2024-09-12 18:39:19,869 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:19,870 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 379 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:19,870 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 346 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:19,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-09-12 18:39:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1488. [2024-09-12 18:39:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1234 states have (on average 1.3030794165316046) internal successors, (1608), 1258 states have internal predecessors, (1608), 192 states have call successors, (192), 40 states have call predecessors, (192), 39 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-09-12 18:39:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1989 transitions. [2024-09-12 18:39:20,320 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1989 transitions. Word has length 105 [2024-09-12 18:39:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:20,320 INFO L474 AbstractCegarLoop]: Abstraction has 1488 states and 1989 transitions. [2024-09-12 18:39:20,320 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:20,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1989 transitions. [2024-09-12 18:39:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:39:20,321 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:20,321 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 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, 1] [2024-09-12 18:39:20,333 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 18:39:20,521 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:39:20,522 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:20,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1943789670, now seen corresponding path program 2 times [2024-09-12 18:39:20,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:20,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262082658] [2024-09-12 18:39:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:20,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:20,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:20,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262082658] [2024-09-12 18:39:20,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262082658] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953871973] [2024-09-12 18:39:20,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:20,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:20,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:20,694 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:20,695 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:39:20,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:20,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:20,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:39:20,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 48 proven. 26 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-09-12 18:39:20,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:20,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953871973] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:20,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:20,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 14 [2024-09-12 18:39:20,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513688898] [2024-09-12 18:39:20,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:20,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:39:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:20,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:39:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:20,993 INFO L87 Difference]: Start difference. First operand 1488 states and 1989 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:22,197 INFO L93 Difference]: Finished difference Result 1553 states and 2069 transitions. [2024-09-12 18:39:22,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:22,198 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 109 [2024-09-12 18:39:22,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:22,203 INFO L225 Difference]: With dead ends: 1553 [2024-09-12 18:39:22,204 INFO L226 Difference]: Without dead ends: 1551 [2024-09-12 18:39:22,204 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:39:22,205 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 180 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:22,205 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 243 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-09-12 18:39:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1538. [2024-09-12 18:39:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1280 states have (on average 1.30390625) internal successors, (1669), 1306 states have internal predecessors, (1669), 194 states have call successors, (194), 42 states have call predecessors, (194), 41 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-09-12 18:39:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2054 transitions. [2024-09-12 18:39:22,629 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2054 transitions. Word has length 109 [2024-09-12 18:39:22,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:22,629 INFO L474 AbstractCegarLoop]: Abstraction has 1538 states and 2054 transitions. [2024-09-12 18:39:22,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:22,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2054 transitions. [2024-09-12 18:39:22,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-09-12 18:39:22,630 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:22,630 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1] [2024-09-12 18:39:22,647 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 18:39:22,831 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:39:22,831 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:22,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash 868431915, now seen corresponding path program 1 times [2024-09-12 18:39:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106729858] [2024-09-12 18:39:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:39:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:39:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:22,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106729858] [2024-09-12 18:39:22,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106729858] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:22,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143465747] [2024-09-12 18:39:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:22,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:22,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:22,953 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:22,955 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:39:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:23,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:39:23,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:23,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:23,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143465747] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:23,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:23,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2024-09-12 18:39:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659011646] [2024-09-12 18:39:23,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:23,319 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:23,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:23,320 INFO L87 Difference]: Start difference. First operand 1538 states and 2054 transitions. Second operand has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:24,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:24,359 INFO L93 Difference]: Finished difference Result 1589 states and 2110 transitions. [2024-09-12 18:39:24,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:24,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 115 [2024-09-12 18:39:24,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:24,369 INFO L225 Difference]: With dead ends: 1589 [2024-09-12 18:39:24,370 INFO L226 Difference]: Without dead ends: 1588 [2024-09-12 18:39:24,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:24,372 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 480 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:24,372 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 369 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:24,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-09-12 18:39:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1537. [2024-09-12 18:39:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1280 states have (on average 1.3015625) internal successors, (1666), 1305 states have internal predecessors, (1666), 194 states have call successors, (194), 42 states have call predecessors, (194), 41 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-09-12 18:39:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2051 transitions. [2024-09-12 18:39:24,765 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2051 transitions. Word has length 115 [2024-09-12 18:39:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:24,766 INFO L474 AbstractCegarLoop]: Abstraction has 1537 states and 2051 transitions. [2024-09-12 18:39:24,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:24,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2051 transitions. [2024-09-12 18:39:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:39:24,767 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:24,767 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1] [2024-09-12 18:39:24,779 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:24,967 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:24,968 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:24,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash -579712665, now seen corresponding path program 1 times [2024-09-12 18:39:24,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:24,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452668745] [2024-09-12 18:39:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:24,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:24,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130748440] [2024-09-12 18:39:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:24,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:24,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:24,982 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:24,984 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:39:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:25,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:25,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:25,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:25,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:25,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452668745] [2024-09-12 18:39:25,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:25,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130748440] [2024-09-12 18:39:25,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130748440] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:25,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:25,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:25,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762306821] [2024-09-12 18:39:25,547 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:25,548 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:25,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:25,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:25,548 INFO L87 Difference]: Start difference. First operand 1537 states and 2051 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:27,002 INFO L93 Difference]: Finished difference Result 2300 states and 3147 transitions. [2024-09-12 18:39:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 117 [2024-09-12 18:39:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:27,011 INFO L225 Difference]: With dead ends: 2300 [2024-09-12 18:39:27,011 INFO L226 Difference]: Without dead ends: 2297 [2024-09-12 18:39:27,012 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:27,012 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 253 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:27,012 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 531 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:27,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2024-09-12 18:39:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 1553. [2024-09-12 18:39:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1293 states have (on average 1.2985305491105956) internal successors, (1679), 1318 states have internal predecessors, (1679), 197 states have call successors, (197), 42 states have call predecessors, (197), 41 states have return successors, (194), 192 states have call predecessors, (194), 194 states have call successors, (194) [2024-09-12 18:39:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2070 transitions. [2024-09-12 18:39:27,477 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2070 transitions. Word has length 117 [2024-09-12 18:39:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:27,478 INFO L474 AbstractCegarLoop]: Abstraction has 1553 states and 2070 transitions. [2024-09-12 18:39:27,478 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:27,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2070 transitions. [2024-09-12 18:39:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:39:27,479 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:27,479 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1] [2024-09-12 18:39:27,496 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-09-12 18:39:27,680 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:39:27,681 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:27,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash -791223363, now seen corresponding path program 1 times [2024-09-12 18:39:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:27,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015766238] [2024-09-12 18:39:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:27,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:27,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495472347] [2024-09-12 18:39:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:27,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:27,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:27,700 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:27,701 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:39:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:27,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:27,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:28,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:28,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:28,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015766238] [2024-09-12 18:39:28,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:28,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495472347] [2024-09-12 18:39:28,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495472347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:28,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:28,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:28,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744797976] [2024-09-12 18:39:28,908 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:28,908 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:28,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:28,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:28,909 INFO L87 Difference]: Start difference. First operand 1553 states and 2070 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:29,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:29,812 INFO L93 Difference]: Finished difference Result 1653 states and 2194 transitions. [2024-09-12 18:39:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:29,813 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 118 [2024-09-12 18:39:29,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:29,818 INFO L225 Difference]: With dead ends: 1653 [2024-09-12 18:39:29,818 INFO L226 Difference]: Without dead ends: 1650 [2024-09-12 18:39:29,819 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:29,819 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 89 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:29,821 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 354 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:29,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-09-12 18:39:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1627. [2024-09-12 18:39:30,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1355 states have (on average 1.2966789667896679) internal successors, (1757), 1380 states have internal predecessors, (1757), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2172 transitions. [2024-09-12 18:39:30,272 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2172 transitions. Word has length 118 [2024-09-12 18:39:30,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:30,273 INFO L474 AbstractCegarLoop]: Abstraction has 1627 states and 2172 transitions. [2024-09-12 18:39:30,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:30,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2172 transitions. [2024-09-12 18:39:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:39:30,274 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:30,274 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2024-09-12 18:39:30,286 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:30,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,474 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:30,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1241879593, now seen corresponding path program 1 times [2024-09-12 18:39:30,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:30,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115767963] [2024-09-12 18:39:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:39:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,578 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:30,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:30,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115767963] [2024-09-12 18:39:30,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115767963] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:30,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:30,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:30,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850470848] [2024-09-12 18:39:30,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:30,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:30,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:30,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:30,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:30,580 INFO L87 Difference]: Start difference. First operand 1627 states and 2172 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:31,796 INFO L93 Difference]: Finished difference Result 1635 states and 2176 transitions. [2024-09-12 18:39:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 119 [2024-09-12 18:39:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:31,803 INFO L225 Difference]: With dead ends: 1635 [2024-09-12 18:39:31,803 INFO L226 Difference]: Without dead ends: 1633 [2024-09-12 18:39:31,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:31,804 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:31,804 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 253 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:31,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-09-12 18:39:32,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1609. [2024-09-12 18:39:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2890216579536968) internal successors, (1726), 1366 states have internal predecessors, (1726), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2141 transitions. [2024-09-12 18:39:32,403 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2141 transitions. Word has length 119 [2024-09-12 18:39:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:32,404 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2141 transitions. [2024-09-12 18:39:32,404 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:32,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2141 transitions. [2024-09-12 18:39:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:39:32,406 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:32,406 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:32,406 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-09-12 18:39:32,406 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:32,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash -156438209, now seen corresponding path program 1 times [2024-09-12 18:39:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:32,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518708978] [2024-09-12 18:39:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:32,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745723810] [2024-09-12 18:39:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:32,424 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:32,428 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:39:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:39:32,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:32,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:33,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:33,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518708978] [2024-09-12 18:39:33,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:33,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745723810] [2024-09-12 18:39:33,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745723810] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:33,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:33,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:39:33,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811479918] [2024-09-12 18:39:33,184 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:33,184 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:33,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:33,185 INFO L87 Difference]: Start difference. First operand 1609 states and 2141 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:34,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:34,196 INFO L93 Difference]: Finished difference Result 1627 states and 2148 transitions. [2024-09-12 18:39:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:39:34,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:39:34,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:34,200 INFO L225 Difference]: With dead ends: 1627 [2024-09-12 18:39:34,200 INFO L226 Difference]: Without dead ends: 1624 [2024-09-12 18:39:34,200 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:39:34,201 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 210 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:34,201 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 375 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:34,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-09-12 18:39:34,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1609. [2024-09-12 18:39:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2837938760268857) internal successors, (1719), 1366 states have internal predecessors, (1719), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2134 transitions. [2024-09-12 18:39:34,697 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2134 transitions. Word has length 120 [2024-09-12 18:39:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:34,697 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2134 transitions. [2024-09-12 18:39:34,697 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:34,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2134 transitions. [2024-09-12 18:39:34,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:39:34,699 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:34,699 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:39:34,711 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:34,899 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:34,900 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:34,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1314853987, now seen corresponding path program 2 times [2024-09-12 18:39:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798158168] [2024-09-12 18:39:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:34,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604843342] [2024-09-12 18:39:34,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:34,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:34,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:34,923 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:34,925 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:39:34,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:34,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:34,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:34,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:39:35,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:35,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798158168] [2024-09-12 18:39:35,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:35,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604843342] [2024-09-12 18:39:35,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604843342] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:35,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:35,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:35,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268435817] [2024-09-12 18:39:35,724 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,725 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:35,725 INFO L87 Difference]: Start difference. First operand 1609 states and 2134 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:37,006 INFO L93 Difference]: Finished difference Result 1933 states and 2618 transitions. [2024-09-12 18:39:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:37,007 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:39:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:37,011 INFO L225 Difference]: With dead ends: 1933 [2024-09-12 18:39:37,011 INFO L226 Difference]: Without dead ends: 1929 [2024-09-12 18:39:37,011 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:37,012 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 212 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:37,012 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 582 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-09-12 18:39:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1609. [2024-09-12 18:39:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2636295743091859) internal successors, (1692), 1366 states have internal predecessors, (1692), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2107 transitions. [2024-09-12 18:39:37,490 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2107 transitions. Word has length 120 [2024-09-12 18:39:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:37,490 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2107 transitions. [2024-09-12 18:39:37,490 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:37,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2107 transitions. [2024-09-12 18:39:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:39:37,491 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:37,491 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 18:39:37,503 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:37,691 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:39:37,692 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:37,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:37,692 INFO L85 PathProgramCache]: Analyzing trace with hash -628704174, now seen corresponding path program 1 times [2024-09-12 18:39:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:37,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100829869] [2024-09-12 18:39:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:39:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:39:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:37,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:37,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100829869] [2024-09-12 18:39:37,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100829869] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:37,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578432782] [2024-09-12 18:39:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:37,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:37,896 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:37,901 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:39:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:37,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:39:38,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:38,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578432782] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:38,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:38,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-09-12 18:39:38,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4810402] [2024-09-12 18:39:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:38,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:38,029 INFO L87 Difference]: Start difference. First operand 1609 states and 2107 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:38,659 INFO L93 Difference]: Finished difference Result 2403 states and 3217 transitions. [2024-09-12 18:39:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 123 [2024-09-12 18:39:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:38,663 INFO L225 Difference]: With dead ends: 2403 [2024-09-12 18:39:38,663 INFO L226 Difference]: Without dead ends: 1251 [2024-09-12 18:39:38,665 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:38,666 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 59 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:38,666 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 237 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:38,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-09-12 18:39:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1186. [2024-09-12 18:39:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 985 states have (on average 1.2730964467005077) internal successors, (1254), 1010 states have internal predecessors, (1254), 148 states have call successors, (148), 34 states have call predecessors, (148), 33 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:39:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1547 transitions. [2024-09-12 18:39:39,038 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1547 transitions. Word has length 123 [2024-09-12 18:39:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:39,038 INFO L474 AbstractCegarLoop]: Abstraction has 1186 states and 1547 transitions. [2024-09-12 18:39:39,038 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:39,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1547 transitions. [2024-09-12 18:39:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:39:39,039 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:39,039 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:39,053 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:39,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:39:39,240 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:39,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,240 INFO L85 PathProgramCache]: Analyzing trace with hash 144149743, now seen corresponding path program 1 times [2024-09-12 18:39:39,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:39,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616243929] [2024-09-12 18:39:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:39,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:39,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800686462] [2024-09-12 18:39:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:39,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:39,258 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:39,260 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:39:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:39:39,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 31 proven. 44 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:39:39,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:40,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616243929] [2024-09-12 18:39:40,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800686462] [2024-09-12 18:39:40,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800686462] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:40,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:40,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:39:40,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609823135] [2024-09-12 18:39:40,608 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:40,608 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:39:40,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:39:40,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=454, Unknown=1, NotChecked=0, Total=552 [2024-09-12 18:39:40,609 INFO L87 Difference]: Start difference. First operand 1186 states and 1547 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:41,714 INFO L93 Difference]: Finished difference Result 1213 states and 1565 transitions. [2024-09-12 18:39:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:39:41,715 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 124 [2024-09-12 18:39:41,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:41,718 INFO L225 Difference]: With dead ends: 1213 [2024-09-12 18:39:41,718 INFO L226 Difference]: Without dead ends: 1206 [2024-09-12 18:39:41,719 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2024-09-12 18:39:41,719 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:41,719 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 642 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-09-12 18:39:42,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1189. [2024-09-12 18:39:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 987 states have (on average 1.2695035460992907) internal successors, (1253), 1011 states have internal predecessors, (1253), 147 states have call successors, (147), 36 states have call predecessors, (147), 35 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:39:42,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1545 transitions. [2024-09-12 18:39:42,213 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1545 transitions. Word has length 124 [2024-09-12 18:39:42,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:42,213 INFO L474 AbstractCegarLoop]: Abstraction has 1189 states and 1545 transitions. [2024-09-12 18:39:42,214 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:42,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1545 transitions. [2024-09-12 18:39:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 18:39:42,214 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:42,215 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:42,227 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 18:39:42,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:39:42,415 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:42,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,416 INFO L85 PathProgramCache]: Analyzing trace with hash -375279443, now seen corresponding path program 1 times [2024-09-12 18:39:42,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:42,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762971432] [2024-09-12 18:39:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:39:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:39:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:39:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:39:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:42,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762971432] [2024-09-12 18:39:42,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762971432] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:42,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064375446] [2024-09-12 18:39:42,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:42,624 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:42,625 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:39:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:39:42,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 18:39:42,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:39:43,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064375446] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:43,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:43,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 25 [2024-09-12 18:39:43,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158917975] [2024-09-12 18:39:43,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:43,022 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:39:43,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:43,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:39:43,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:39:43,023 INFO L87 Difference]: Start difference. First operand 1189 states and 1545 transitions. Second operand has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) [2024-09-12 18:39:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:43,961 INFO L93 Difference]: Finished difference Result 1551 states and 1908 transitions. [2024-09-12 18:39:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 18:39:43,962 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) Word has length 149 [2024-09-12 18:39:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:43,967 INFO L225 Difference]: With dead ends: 1551 [2024-09-12 18:39:43,967 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 18:39:43,968 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=578, Invalid=2392, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:39:43,968 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 257 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:43,969 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 886 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:43,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 18:39:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1443. [2024-09-12 18:39:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1198 states have (on average 1.2445742904841401) internal successors, (1491), 1224 states have internal predecessors, (1491), 161 states have call successors, (161), 65 states have call predecessors, (161), 64 states have return successors, (158), 153 states have call predecessors, (158), 158 states have call successors, (158) [2024-09-12 18:39:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1810 transitions. [2024-09-12 18:39:44,399 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1810 transitions. Word has length 149 [2024-09-12 18:39:44,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:44,399 INFO L474 AbstractCegarLoop]: Abstraction has 1443 states and 1810 transitions. [2024-09-12 18:39:44,399 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) [2024-09-12 18:39:44,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1810 transitions. [2024-09-12 18:39:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:39:44,400 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:44,400 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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 18:39:44,412 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:44,601 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:39:44,601 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:44,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash 358587858, now seen corresponding path program 2 times [2024-09-12 18:39:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:44,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587674138] [2024-09-12 18:39:44,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:44,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908749817] [2024-09-12 18:39:44,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:44,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:44,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:44,630 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:44,632 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:39:44,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:44,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:44,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:39:44,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:39:45,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:45,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:45,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587674138] [2024-09-12 18:39:45,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:45,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908749817] [2024-09-12 18:39:45,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908749817] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:45,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:45,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122516268] [2024-09-12 18:39:45,254 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:45,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:45,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:45,255 INFO L87 Difference]: Start difference. First operand 1443 states and 1810 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:39:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:47,158 INFO L93 Difference]: Finished difference Result 2616 states and 3476 transitions. [2024-09-12 18:39:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:39:47,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 158 [2024-09-12 18:39:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:47,165 INFO L225 Difference]: With dead ends: 2616 [2024-09-12 18:39:47,165 INFO L226 Difference]: Without dead ends: 2613 [2024-09-12 18:39:47,166 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:47,166 INFO L434 NwaCegarLoop]: 187 mSDtfsCounter, 351 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:47,166 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 903 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:39:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2024-09-12 18:39:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1418. [2024-09-12 18:39:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1173 states have (on average 1.2429667519181586) internal successors, (1458), 1199 states have internal predecessors, (1458), 161 states have call successors, (161), 65 states have call predecessors, (161), 64 states have return successors, (158), 153 states have call predecessors, (158), 158 states have call successors, (158) [2024-09-12 18:39:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1777 transitions. [2024-09-12 18:39:47,624 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1777 transitions. Word has length 158 [2024-09-12 18:39:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:47,624 INFO L474 AbstractCegarLoop]: Abstraction has 1418 states and 1777 transitions. [2024-09-12 18:39:47,624 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:39:47,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1777 transitions. [2024-09-12 18:39:47,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 18:39:47,625 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:47,625 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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] [2024-09-12 18:39:47,638 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:47,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:39:47,826 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:47,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1768678222, now seen corresponding path program 2 times [2024-09-12 18:39:47,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:47,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635857325] [2024-09-12 18:39:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:47,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935228174] [2024-09-12 18:39:47,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:47,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:47,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:47,851 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:47,853 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:39:47,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:47,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:47,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:39:47,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:39:48,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:48,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:48,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635857325] [2024-09-12 18:39:48,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:48,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935228174] [2024-09-12 18:39:48,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935228174] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:48,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:48,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:48,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566596890] [2024-09-12 18:39:48,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:48,900 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:48,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:48,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:48,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:48,901 INFO L87 Difference]: Start difference. First operand 1418 states and 1777 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:39:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:50,015 INFO L93 Difference]: Finished difference Result 1500 states and 1873 transitions. [2024-09-12 18:39:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:50,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 159 [2024-09-12 18:39:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:50,019 INFO L225 Difference]: With dead ends: 1500 [2024-09-12 18:39:50,020 INFO L226 Difference]: Without dead ends: 1497 [2024-09-12 18:39:50,020 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:39:50,020 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 85 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:50,021 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 601 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-09-12 18:39:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1462. [2024-09-12 18:39:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.2421487603305785) internal successors, (1503), 1235 states have internal predecessors, (1503), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:39:50,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1836 transitions. [2024-09-12 18:39:50,652 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1836 transitions. Word has length 159 [2024-09-12 18:39:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:50,652 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1836 transitions. [2024-09-12 18:39:50,652 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:39:50,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1836 transitions. [2024-09-12 18:39:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:39:50,653 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:50,654 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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] [2024-09-12 18:39:50,668 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:50,854 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:39:50,854 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:50,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:50,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1107280116, now seen corresponding path program 2 times [2024-09-12 18:39:50,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:50,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323890324] [2024-09-12 18:39:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:50,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:50,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275391093] [2024-09-12 18:39:50,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:50,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:50,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:50,872 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:50,873 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:39:50,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:50,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:50,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:39:50,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:39:51,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:53,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:53,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323890324] [2024-09-12 18:39:53,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:53,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275391093] [2024-09-12 18:39:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275391093] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:53,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:53,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736723948] [2024-09-12 18:39:53,097 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:53,097 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:53,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:53,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:53,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:39:53,098 INFO L87 Difference]: Start difference. First operand 1462 states and 1836 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:39:54,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:54,120 INFO L93 Difference]: Finished difference Result 1487 states and 1850 transitions. [2024-09-12 18:39:54,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:39:54,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 161 [2024-09-12 18:39:54,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:54,124 INFO L225 Difference]: With dead ends: 1487 [2024-09-12 18:39:54,124 INFO L226 Difference]: Without dead ends: 1484 [2024-09-12 18:39:54,124 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:54,125 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 90 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:54,125 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 505 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-09-12 18:39:54,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1462. [2024-09-12 18:39:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.2363636363636363) internal successors, (1496), 1235 states have internal predecessors, (1496), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:39:54,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1829 transitions. [2024-09-12 18:39:54,678 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1829 transitions. Word has length 161 [2024-09-12 18:39:54,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:54,678 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1829 transitions. [2024-09-12 18:39:54,678 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:39:54,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:54,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1829 transitions. [2024-09-12 18:39:54,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:39:54,680 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:54,680 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 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 18:39:54,693 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:54,880 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:39:54,880 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:54,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1716394984, now seen corresponding path program 3 times [2024-09-12 18:39:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:54,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923781120] [2024-09-12 18:39:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:54,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:54,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633762656] [2024-09-12 18:39:54,894 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:39:54,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:54,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:54,896 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:54,898 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-09-12 18:39:54,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:39:54,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:54,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:54,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 45 proven. 26 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-09-12 18:39:55,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:59,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:59,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923781120] [2024-09-12 18:39:59,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:59,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633762656] [2024-09-12 18:39:59,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633762656] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:59,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:59,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:59,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394762503] [2024-09-12 18:39:59,670 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:59,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:59,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:59,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:59,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:39:59,671 INFO L87 Difference]: Start difference. First operand 1462 states and 1829 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:01,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:01,123 INFO L93 Difference]: Finished difference Result 1870 states and 2401 transitions. [2024-09-12 18:40:01,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:40:01,124 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 161 [2024-09-12 18:40:01,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:01,128 INFO L225 Difference]: With dead ends: 1870 [2024-09-12 18:40:01,128 INFO L226 Difference]: Without dead ends: 1866 [2024-09-12 18:40:01,129 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=96, Invalid=323, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:40:01,129 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 488 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:01,130 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 621 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:40:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-09-12 18:40:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1462. [2024-09-12 18:40:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.228099173553719) internal successors, (1486), 1235 states have internal predecessors, (1486), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:40:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1819 transitions. [2024-09-12 18:40:01,732 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1819 transitions. Word has length 161 [2024-09-12 18:40:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:01,732 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1819 transitions. [2024-09-12 18:40:01,733 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:01,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:01,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1819 transitions. [2024-09-12 18:40:01,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 18:40:01,734 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:01,734 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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 18:40:01,746 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:01,934 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:01,935 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:01,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1415566461, now seen corresponding path program 1 times [2024-09-12 18:40:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:01,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048501492] [2024-09-12 18:40:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:01,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:40:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:40:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:40:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:02,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:02,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048501492] [2024-09-12 18:40:02,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048501492] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:02,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144347417] [2024-09-12 18:40:02,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:02,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:02,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:02,184 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:02,186 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:40:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:02,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:40:02,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-12 18:40:02,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:02,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144347417] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:02,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:02,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 30 [2024-09-12 18:40:02,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395139415] [2024-09-12 18:40:02,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:02,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:40:02,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:02,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:40:02,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:40:02,660 INFO L87 Difference]: Start difference. First operand 1462 states and 1819 transitions. Second operand has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) [2024-09-12 18:40:03,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:03,949 INFO L93 Difference]: Finished difference Result 2195 states and 2735 transitions. [2024-09-12 18:40:03,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:40:03,950 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) Word has length 164 [2024-09-12 18:40:03,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:03,954 INFO L225 Difference]: With dead ends: 2195 [2024-09-12 18:40:03,954 INFO L226 Difference]: Without dead ends: 1733 [2024-09-12 18:40:03,956 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=790, Invalid=3370, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 18:40:03,956 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 273 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:03,956 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 977 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:40:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2024-09-12 18:40:04,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1651. [2024-09-12 18:40:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1363 states have (on average 1.2164343360234777) internal successors, (1658), 1393 states have internal predecessors, (1658), 187 states have call successors, (187), 82 states have call predecessors, (187), 81 states have return successors, (182), 175 states have call predecessors, (182), 182 states have call successors, (182) [2024-09-12 18:40:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2027 transitions. [2024-09-12 18:40:04,592 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2027 transitions. Word has length 164 [2024-09-12 18:40:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:04,592 INFO L474 AbstractCegarLoop]: Abstraction has 1651 states and 2027 transitions. [2024-09-12 18:40:04,593 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) [2024-09-12 18:40:04,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2027 transitions. [2024-09-12 18:40:04,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 18:40:04,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:04,594 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 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, 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] [2024-09-12 18:40:04,606 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:04,794 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:04,794 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:04,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash -907970012, now seen corresponding path program 2 times [2024-09-12 18:40:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706690982] [2024-09-12 18:40:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:04,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191509354] [2024-09-12 18:40:04,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:04,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:04,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:04,810 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:04,813 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:40:04,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:04,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:04,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:40:04,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 39 proven. 97 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-09-12 18:40:05,698 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:06,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:06,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706690982] [2024-09-12 18:40:06,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:06,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191509354] [2024-09-12 18:40:06,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191509354] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:06,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:06,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:40:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531739237] [2024-09-12 18:40:06,269 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:06,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:40:06,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:06,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:40:06,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:40:06,270 INFO L87 Difference]: Start difference. First operand 1651 states and 2027 transitions. Second operand has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:07,683 INFO L93 Difference]: Finished difference Result 1673 states and 2042 transitions. [2024-09-12 18:40:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 165 [2024-09-12 18:40:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:07,688 INFO L225 Difference]: With dead ends: 1673 [2024-09-12 18:40:07,688 INFO L226 Difference]: Without dead ends: 1666 [2024-09-12 18:40:07,689 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:40:07,689 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 74 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:07,690 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 875 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-09-12 18:40:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1654. [2024-09-12 18:40:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1365 states have (on average 1.2124542124542124) internal successors, (1655), 1394 states have internal predecessors, (1655), 186 states have call successors, (186), 84 states have call predecessors, (186), 83 states have return successors, (182), 175 states have call predecessors, (182), 182 states have call successors, (182) [2024-09-12 18:40:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2023 transitions. [2024-09-12 18:40:08,409 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2023 transitions. Word has length 165 [2024-09-12 18:40:08,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:08,409 INFO L474 AbstractCegarLoop]: Abstraction has 1654 states and 2023 transitions. [2024-09-12 18:40:08,409 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:08,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2023 transitions. [2024-09-12 18:40:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 18:40:08,410 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:08,410 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:08,422 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:40:08,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:08,611 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:08,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1214385629, now seen corresponding path program 3 times [2024-09-12 18:40:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760238676] [2024-09-12 18:40:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:08,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658202088] [2024-09-12 18:40:08,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:08,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:08,630 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:08,634 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:40:08,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:08,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:08,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:40:08,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 99 proven. 76 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 18:40:09,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:10,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760238676] [2024-09-12 18:40:10,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658202088] [2024-09-12 18:40:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658202088] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:10,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:10,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:40:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908848487] [2024-09-12 18:40:10,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:10,789 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:40:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:40:10,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:40:10,790 INFO L87 Difference]: Start difference. First operand 1654 states and 2023 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:16,224 INFO L93 Difference]: Finished difference Result 1782 states and 2204 transitions. [2024-09-12 18:40:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:40:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 171 [2024-09-12 18:40:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:16,230 INFO L225 Difference]: With dead ends: 1782 [2024-09-12 18:40:16,231 INFO L226 Difference]: Without dead ends: 1776 [2024-09-12 18:40:16,231 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:40:16,232 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 381 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:16,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 430 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-09-12 18:40:16,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2024-09-12 18:40:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1713. [2024-09-12 18:40:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1419 states have (on average 1.1797040169133193) internal successors, (1674), 1445 states have internal predecessors, (1674), 192 states have call successors, (192), 84 states have call predecessors, (192), 83 states have return successors, (188), 183 states have call predecessors, (188), 188 states have call successors, (188) [2024-09-12 18:40:17,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2054 transitions. [2024-09-12 18:40:17,100 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2054 transitions. Word has length 171 [2024-09-12 18:40:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:17,100 INFO L474 AbstractCegarLoop]: Abstraction has 1713 states and 2054 transitions. [2024-09-12 18:40:17,100 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:17,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:17,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2054 transitions. [2024-09-12 18:40:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 18:40:17,101 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:17,101 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:17,107 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:17,302 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:40:17,302 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:17,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1206517285, now seen corresponding path program 3 times [2024-09-12 18:40:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:17,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121672776] [2024-09-12 18:40:17,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:17,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:17,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852237710] [2024-09-12 18:40:17,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:17,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:17,322 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:17,323 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:40:17,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:17,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:17,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:40:17,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 68 proven. 79 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-09-12 18:40:17,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:18,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:18,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121672776] [2024-09-12 18:40:18,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:18,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852237710] [2024-09-12 18:40:18,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852237710] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:18,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:18,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:18,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782403140] [2024-09-12 18:40:18,512 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:18,513 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:40:18,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:18,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:40:18,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:18,513 INFO L87 Difference]: Start difference. First operand 1713 states and 2054 transitions. Second operand has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:20,266 INFO L93 Difference]: Finished difference Result 1758 states and 2108 transitions. [2024-09-12 18:40:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:40:20,267 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 173 [2024-09-12 18:40:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:20,272 INFO L225 Difference]: With dead ends: 1758 [2024-09-12 18:40:20,272 INFO L226 Difference]: Without dead ends: 1755 [2024-09-12 18:40:20,273 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=336, Invalid=1304, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 18:40:20,273 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 253 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:20,274 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 507 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2024-09-12 18:40:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1681. [2024-09-12 18:40:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1391 states have (on average 1.1696621135873473) internal successors, (1627), 1416 states have internal predecessors, (1627), 189 states have call successors, (189), 84 states have call predecessors, (189), 83 states have return successors, (185), 180 states have call predecessors, (185), 185 states have call successors, (185) [2024-09-12 18:40:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2001 transitions. [2024-09-12 18:40:21,047 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2001 transitions. Word has length 173 [2024-09-12 18:40:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:21,047 INFO L474 AbstractCegarLoop]: Abstraction has 1681 states and 2001 transitions. [2024-09-12 18:40:21,047 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:21,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2001 transitions. [2024-09-12 18:40:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:40:21,048 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:21,048 INFO L216 NwaCegarLoop]: trace histogram [16, 15, 15, 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, 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 18:40:21,054 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:21,249 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:21,249 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:21,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash 689419989, now seen corresponding path program 3 times [2024-09-12 18:40:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:21,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224690184] [2024-09-12 18:40:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:21,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:21,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307765470] [2024-09-12 18:40:21,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:21,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:21,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:21,271 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:21,272 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:40:21,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:21,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:21,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:40:21,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 94 proven. 82 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-09-12 18:40:21,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224690184] [2024-09-12 18:40:21,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307765470] [2024-09-12 18:40:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307765470] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:21,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:21,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:40:21,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138084070] [2024-09-12 18:40:21,740 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:21,740 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:21,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:21,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:21,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:21,741 INFO L87 Difference]: Start difference. First operand 1681 states and 2001 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:40:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:23,146 INFO L93 Difference]: Finished difference Result 1727 states and 2053 transitions. [2024-09-12 18:40:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:40:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) Word has length 177 [2024-09-12 18:40:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:23,151 INFO L225 Difference]: With dead ends: 1727 [2024-09-12 18:40:23,151 INFO L226 Difference]: Without dead ends: 1641 [2024-09-12 18:40:23,152 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:23,152 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:23,152 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 338 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:40:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2024-09-12 18:40:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1613. [2024-09-12 18:40:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1333 states have (on average 1.1665416354088523) internal successors, (1555), 1355 states have internal predecessors, (1555), 181 states have call successors, (181), 83 states have call predecessors, (181), 81 states have return successors, (179), 174 states have call predecessors, (179), 179 states have call successors, (179) [2024-09-12 18:40:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 1915 transitions. [2024-09-12 18:40:23,894 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 1915 transitions. Word has length 177 [2024-09-12 18:40:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:23,894 INFO L474 AbstractCegarLoop]: Abstraction has 1613 states and 1915 transitions. [2024-09-12 18:40:23,894 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:40:23,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 1915 transitions. [2024-09-12 18:40:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 18:40:23,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:23,896 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:23,912 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:24,096 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:24,096 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:24,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:24,097 INFO L85 PathProgramCache]: Analyzing trace with hash 953023943, now seen corresponding path program 3 times [2024-09-12 18:40:24,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:24,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626881334] [2024-09-12 18:40:24,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:24,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:24,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537617338] [2024-09-12 18:40:24,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:24,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:24,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:24,124 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:24,132 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:40:24,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:40:24,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:24,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:24,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 51 proven. 8 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:40:24,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:28,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626881334] [2024-09-12 18:40:28,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537617338] [2024-09-12 18:40:28,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537617338] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:28,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:28,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218804644] [2024-09-12 18:40:28,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:28,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:28,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:28,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:28,557 INFO L87 Difference]: Start difference. First operand 1613 states and 1915 transitions. Second operand has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:29,929 INFO L93 Difference]: Finished difference Result 1790 states and 2146 transitions. [2024-09-12 18:40:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:40:29,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 199 [2024-09-12 18:40:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:29,933 INFO L225 Difference]: With dead ends: 1790 [2024-09-12 18:40:29,933 INFO L226 Difference]: Without dead ends: 1786 [2024-09-12 18:40:29,933 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:40:29,934 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 400 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:29,934 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 345 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-09-12 18:40:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1741. [2024-09-12 18:40:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1440 states have (on average 1.167361111111111) internal successors, (1681), 1462 states have internal predecessors, (1681), 202 states have call successors, (202), 83 states have call predecessors, (202), 81 states have return successors, (200), 195 states have call predecessors, (200), 200 states have call successors, (200) [2024-09-12 18:40:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2083 transitions. [2024-09-12 18:40:30,671 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2083 transitions. Word has length 199 [2024-09-12 18:40:30,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:30,672 INFO L474 AbstractCegarLoop]: Abstraction has 1741 states and 2083 transitions. [2024-09-12 18:40:30,672 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:30,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:30,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2083 transitions. [2024-09-12 18:40:30,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-09-12 18:40:30,673 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:30,674 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 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 18:40:30,686 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:30,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:40:30,874 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:30,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1671322848, now seen corresponding path program 2 times [2024-09-12 18:40:30,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:30,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280925268] [2024-09-12 18:40:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:30,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:40:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:40:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:40:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:40:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:40:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:40:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:40:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:40:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:40:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280925268] [2024-09-12 18:40:31,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280925268] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:31,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695344957] [2024-09-12 18:40:31,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:31,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:31,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:31,051 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:31,054 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:40:31,122 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:31,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:31,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:40:31,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:31,271 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:31,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695344957] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:31,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:31,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-09-12 18:40:31,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275088146] [2024-09-12 18:40:31,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:31,531 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:31,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:31,532 INFO L87 Difference]: Start difference. First operand 1741 states and 2083 transitions. Second operand has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:40:34,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:34,447 INFO L93 Difference]: Finished difference Result 4052 states and 5300 transitions. [2024-09-12 18:40:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:34,448 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 222 [2024-09-12 18:40:34,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:34,455 INFO L225 Difference]: With dead ends: 4052 [2024-09-12 18:40:34,455 INFO L226 Difference]: Without dead ends: 4051 [2024-09-12 18:40:34,456 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:40:34,456 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 689 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:34,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 794 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2024-09-12 18:40:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 2876. [2024-09-12 18:40:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2392 states have (on average 1.2286789297658862) internal successors, (2939), 2413 states have internal predecessors, (2939), 385 states have call successors, (385), 83 states have call predecessors, (385), 81 states have return successors, (383), 379 states have call predecessors, (383), 383 states have call successors, (383) [2024-09-12 18:40:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3707 transitions. [2024-09-12 18:40:35,756 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3707 transitions. Word has length 222 [2024-09-12 18:40:35,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:35,757 INFO L474 AbstractCegarLoop]: Abstraction has 2876 states and 3707 transitions. [2024-09-12 18:40:35,757 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:40:35,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3707 transitions. [2024-09-12 18:40:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:40:35,759 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:35,759 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 18:40:35,776 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:35,959 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:40:35,960 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:35,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash 802448630, now seen corresponding path program 1 times [2024-09-12 18:40:35,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:35,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352101339] [2024-09-12 18:40:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:35,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,140 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:40:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:40:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:40:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:40:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:40:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:40:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,177 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:40:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:40:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:40:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:40:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:40:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:40:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:36,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352101339] [2024-09-12 18:40:36,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352101339] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:36,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702860503] [2024-09-12 18:40:36,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:36,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:36,190 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:36,192 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:40:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:36,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:40:36,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 579 proven. 48 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-09-12 18:40:36,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 131 proven. 48 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2024-09-12 18:40:36,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702860503] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:36,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:36,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2024-09-12 18:40:36,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709092792] [2024-09-12 18:40:36,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:36,597 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:40:36,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:36,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:40:36,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:40:36,598 INFO L87 Difference]: Start difference. First operand 2876 states and 3707 transitions. Second operand has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:40:39,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:39,295 INFO L93 Difference]: Finished difference Result 4561 states and 6010 transitions. [2024-09-12 18:40:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:40:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 240 [2024-09-12 18:40:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:39,303 INFO L225 Difference]: With dead ends: 4561 [2024-09-12 18:40:39,303 INFO L226 Difference]: Without dead ends: 2790 [2024-09-12 18:40:39,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 520 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:40:39,308 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 369 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:39,309 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 744 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:40:39,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-09-12 18:40:40,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2664. [2024-09-12 18:40:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2222 states have (on average 1.2403240324032403) internal successors, (2756), 2242 states have internal predecessors, (2756), 363 states have call successors, (363), 63 states have call predecessors, (363), 61 states have return successors, (361), 358 states have call predecessors, (361), 361 states have call successors, (361) [2024-09-12 18:40:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3480 transitions. [2024-09-12 18:40:40,642 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3480 transitions. Word has length 240 [2024-09-12 18:40:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:40,642 INFO L474 AbstractCegarLoop]: Abstraction has 2664 states and 3480 transitions. [2024-09-12 18:40:40,642 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:40:40,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:40,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3480 transitions. [2024-09-12 18:40:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:40:40,644 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:40,644 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-09-12 18:40:40,657 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:40:40,845 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:40,845 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:40,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:40,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1577265846, now seen corresponding path program 2 times [2024-09-12 18:40:40,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:40,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694245337] [2024-09-12 18:40:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:40,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:40:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:40:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:40:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:40:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:40:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:40:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:40:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:40:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:40:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:40:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:40:41,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694245337] [2024-09-12 18:40:41,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694245337] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494125867] [2024-09-12 18:40:41,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:41,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:41,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:41,119 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:41,121 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:40:41,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:41,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:41,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:40:41,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:41,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:40:41,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:40:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494125867] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:41,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:41,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22 [2024-09-12 18:40:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701270801] [2024-09-12 18:40:41,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:41,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:40:41,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:40:41,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:41,769 INFO L87 Difference]: Start difference. First operand 2664 states and 3480 transitions. Second operand has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:40:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:46,115 INFO L93 Difference]: Finished difference Result 6263 states and 8492 transitions. [2024-09-12 18:40:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:40:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) Word has length 240 [2024-09-12 18:40:46,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:46,128 INFO L225 Difference]: With dead ends: 6263 [2024-09-12 18:40:46,128 INFO L226 Difference]: Without dead ends: 6225 [2024-09-12 18:40:46,130 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=604, Invalid=1036, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 18:40:46,131 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 1414 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:46,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 716 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:40:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6225 states. [2024-09-12 18:40:48,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6225 to 3785. [2024-09-12 18:40:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3190 states have (on average 1.2413793103448276) internal successors, (3960), 3212 states have internal predecessors, (3960), 516 states have call successors, (516), 63 states have call predecessors, (516), 61 states have return successors, (514), 509 states have call predecessors, (514), 514 states have call successors, (514) [2024-09-12 18:40:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 4990 transitions. [2024-09-12 18:40:48,128 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 4990 transitions. Word has length 240 [2024-09-12 18:40:48,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:48,128 INFO L474 AbstractCegarLoop]: Abstraction has 3785 states and 4990 transitions. [2024-09-12 18:40:48,128 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:40:48,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 4990 transitions. [2024-09-12 18:40:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 18:40:48,130 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:48,130 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:48,142 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-09-12 18:40:48,330 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:48,331 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:48,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash -287760927, now seen corresponding path program 4 times [2024-09-12 18:40:48,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:48,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625178817] [2024-09-12 18:40:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:48,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:48,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492622248] [2024-09-12 18:40:48,348 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:40:48,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:48,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:48,355 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:48,357 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:40:48,443 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:40:48,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:48,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:40:48,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:49,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 168 proven. 52 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:40:49,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:49,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:49,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625178817] [2024-09-12 18:40:49,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:49,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492622248] [2024-09-12 18:40:49,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492622248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:49,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:49,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096735496] [2024-09-12 18:40:49,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:49,217 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:49,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:49,217 INFO L87 Difference]: Start difference. First operand 3785 states and 4990 transitions. Second operand has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:40:53,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:53,313 INFO L93 Difference]: Finished difference Result 5047 states and 6732 transitions. [2024-09-12 18:40:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:40:53,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) Word has length 252 [2024-09-12 18:40:53,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:53,326 INFO L225 Difference]: With dead ends: 5047 [2024-09-12 18:40:53,326 INFO L226 Difference]: Without dead ends: 5027 [2024-09-12 18:40:53,328 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:53,328 INFO L434 NwaCegarLoop]: 221 mSDtfsCounter, 345 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:53,328 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 683 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:40:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2024-09-12 18:40:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 3720. [2024-09-12 18:40:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3720 states, 3135 states have (on average 1.2430622009569379) internal successors, (3897), 3157 states have internal predecessors, (3897), 506 states have call successors, (506), 63 states have call predecessors, (506), 61 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) [2024-09-12 18:40:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 4907 transitions. [2024-09-12 18:40:55,318 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 4907 transitions. Word has length 252 [2024-09-12 18:40:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:55,318 INFO L474 AbstractCegarLoop]: Abstraction has 3720 states and 4907 transitions. [2024-09-12 18:40:55,318 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:40:55,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:55,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 4907 transitions. [2024-09-12 18:40:55,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 18:40:55,320 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:55,320 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 18:40:55,337 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:55,520 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:55,520 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:55,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2005929131, now seen corresponding path program 1 times [2024-09-12 18:40:55,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674568076] [2024-09-12 18:40:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:55,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:40:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:40:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:40:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:40:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:40:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:40:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:40:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:40:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:40:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:40:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:40:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:40:55,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:55,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674568076] [2024-09-12 18:40:55,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674568076] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:55,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328339448] [2024-09-12 18:40:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:55,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:55,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:55,904 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:55,906 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:40:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:40:55,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 1138 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-09-12 18:40:56,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:40:56,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328339448] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:56,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:56,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 37 [2024-09-12 18:40:56,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820125362] [2024-09-12 18:40:56,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:56,618 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:40:56,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:56,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:40:56,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:40:56,620 INFO L87 Difference]: Start difference. First operand 3720 states and 4907 transitions. Second operand has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) [2024-09-12 18:41:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:00,294 INFO L93 Difference]: Finished difference Result 5587 states and 7216 transitions. [2024-09-12 18:41:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-12 18:41:00,295 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) Word has length 252 [2024-09-12 18:41:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:00,307 INFO L225 Difference]: With dead ends: 5587 [2024-09-12 18:41:00,307 INFO L226 Difference]: Without dead ends: 4904 [2024-09-12 18:41:00,311 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2348 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1602, Invalid=6770, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:41:00,311 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 567 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:00,311 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 898 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2024-09-12 18:41:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 4692. [2024-09-12 18:41:02,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 3940 states have (on average 1.2144670050761421) internal successors, (4785), 3964 states have internal predecessors, (4785), 605 states have call successors, (605), 131 states have call predecessors, (605), 129 states have return successors, (603), 596 states have call predecessors, (603), 603 states have call successors, (603) [2024-09-12 18:41:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 5993 transitions. [2024-09-12 18:41:02,760 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 5993 transitions. Word has length 252 [2024-09-12 18:41:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:02,761 INFO L474 AbstractCegarLoop]: Abstraction has 4692 states and 5993 transitions. [2024-09-12 18:41:02,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) [2024-09-12 18:41:02,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 5993 transitions. [2024-09-12 18:41:02,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-09-12 18:41:02,762 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:02,763 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 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 18:41:02,774 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:02,963 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:02,963 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:02,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:02,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1979206049, now seen corresponding path program 1 times [2024-09-12 18:41:02,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:02,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701112627] [2024-09-12 18:41:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:02,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,306 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,315 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:41:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:41:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:41:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:41:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:41:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:03,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:03,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701112627] [2024-09-12 18:41:03,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701112627] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:03,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267385491] [2024-09-12 18:41:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:03,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:03,352 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:03,357 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:41:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:03,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:41:03,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 1551 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:41:03,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:04,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267385491] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:04,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:04,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 38 [2024-09-12 18:41:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653145600] [2024-09-12 18:41:04,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:04,161 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:41:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:41:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:41:04,163 INFO L87 Difference]: Start difference. First operand 4692 states and 5993 transitions. Second operand has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) [2024-09-12 18:41:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:07,452 INFO L93 Difference]: Finished difference Result 6140 states and 7775 transitions. [2024-09-12 18:41:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-09-12 18:41:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) Word has length 284 [2024-09-12 18:41:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:07,466 INFO L225 Difference]: With dead ends: 6140 [2024-09-12 18:41:07,466 INFO L226 Difference]: Without dead ends: 4601 [2024-09-12 18:41:07,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1636, Invalid=6196, Unknown=0, NotChecked=0, Total=7832 [2024-09-12 18:41:07,470 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 364 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:07,471 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1197 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:07,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2024-09-12 18:41:09,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 4431. [2024-09-12 18:41:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4431 states, 3688 states have (on average 1.191702819956616) internal successors, (4395), 3710 states have internal predecessors, (4395), 545 states have call successors, (545), 182 states have call predecessors, (545), 180 states have return successors, (543), 538 states have call predecessors, (543), 543 states have call successors, (543) [2024-09-12 18:41:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 5483 transitions. [2024-09-12 18:41:09,795 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 5483 transitions. Word has length 284 [2024-09-12 18:41:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:09,795 INFO L474 AbstractCegarLoop]: Abstraction has 4431 states and 5483 transitions. [2024-09-12 18:41:09,795 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) [2024-09-12 18:41:09,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 5483 transitions. [2024-09-12 18:41:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-09-12 18:41:09,798 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:09,798 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:09,810 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:09,998 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:09,999 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:09,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1040877853, now seen corresponding path program 1 times [2024-09-12 18:41:10,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:10,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191870012] [2024-09-12 18:41:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:10,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,502 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,512 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:41:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:41:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:41:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:10,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:10,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191870012] [2024-09-12 18:41:10,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191870012] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:10,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99851763] [2024-09-12 18:41:10,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:10,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:10,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:10,538 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:10,539 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:41:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:10,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:41:10,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-09-12 18:41:10,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:11,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99851763] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:11,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:11,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 20] total 42 [2024-09-12 18:41:11,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055208730] [2024-09-12 18:41:11,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:11,374 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-12 18:41:11,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-12 18:41:11,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1359, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 18:41:11,375 INFO L87 Difference]: Start difference. First operand 4431 states and 5483 transitions. Second operand has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) [2024-09-12 18:41:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:14,808 INFO L93 Difference]: Finished difference Result 5705 states and 7119 transitions. [2024-09-12 18:41:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-09-12 18:41:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) Word has length 286 [2024-09-12 18:41:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:14,820 INFO L225 Difference]: With dead ends: 5705 [2024-09-12 18:41:14,820 INFO L226 Difference]: Without dead ends: 4687 [2024-09-12 18:41:14,823 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2815 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1852, Invalid=8048, Unknown=0, NotChecked=0, Total=9900 [2024-09-12 18:41:14,824 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 389 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:14,824 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1126 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2024-09-12 18:41:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4512. [2024-09-12 18:41:16,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 3755 states have (on average 1.1808255659121172) internal successors, (4434), 3779 states have internal predecessors, (4434), 553 states have call successors, (553), 188 states have call predecessors, (553), 186 states have return successors, (551), 544 states have call predecessors, (551), 551 states have call successors, (551) [2024-09-12 18:41:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 5538 transitions. [2024-09-12 18:41:16,985 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 5538 transitions. Word has length 286 [2024-09-12 18:41:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:16,986 INFO L474 AbstractCegarLoop]: Abstraction has 4512 states and 5538 transitions. [2024-09-12 18:41:16,986 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) [2024-09-12 18:41:16,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 5538 transitions. [2024-09-12 18:41:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-09-12 18:41:16,987 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:16,987 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:17,000 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:17,188 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:41:17,188 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:17,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1527604584, now seen corresponding path program 5 times [2024-09-12 18:41:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:17,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343370732] [2024-09-12 18:41:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:17,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991635602] [2024-09-12 18:41:17,205 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:41:17,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:17,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:17,206 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:17,207 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:41:17,293 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:41:17,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:17,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:41:17,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1731 backedges. 37 proven. 290 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:41:18,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:18,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343370732] [2024-09-12 18:41:18,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:18,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991635602] [2024-09-12 18:41:18,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991635602] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:18,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:18,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:41:18,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53458391] [2024-09-12 18:41:18,325 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:18,326 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:41:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:41:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:41:18,327 INFO L87 Difference]: Start difference. First operand 4512 states and 5538 transitions. Second operand has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:41:27,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:27,615 INFO L93 Difference]: Finished difference Result 9450 states and 12393 transitions. [2024-09-12 18:41:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:41:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) Word has length 293 [2024-09-12 18:41:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:27,634 INFO L225 Difference]: With dead ends: 9450 [2024-09-12 18:41:27,634 INFO L226 Difference]: Without dead ends: 9404 [2024-09-12 18:41:27,637 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=524, Invalid=2556, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:41:27,637 INFO L434 NwaCegarLoop]: 372 mSDtfsCounter, 830 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 6219 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 6376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 6219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:27,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2659 Invalid, 6376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 6219 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-09-12 18:41:27,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2024-09-12 18:41:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 6168. [2024-09-12 18:41:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 5155 states have (on average 1.1961202715809893) internal successors, (6166), 5181 states have internal predecessors, (6166), 812 states have call successors, (812), 185 states have call predecessors, (812), 183 states have return successors, (810), 801 states have call predecessors, (810), 810 states have call successors, (810) [2024-09-12 18:41:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 7788 transitions. [2024-09-12 18:41:31,078 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 7788 transitions. Word has length 293 [2024-09-12 18:41:31,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:31,079 INFO L474 AbstractCegarLoop]: Abstraction has 6168 states and 7788 transitions. [2024-09-12 18:41:31,079 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:41:31,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 7788 transitions. [2024-09-12 18:41:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-09-12 18:41:31,081 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:31,081 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 18:41:31,096 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-09-12 18:41:31,281 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:31,281 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:31,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:31,282 INFO L85 PathProgramCache]: Analyzing trace with hash 510627348, now seen corresponding path program 1 times [2024-09-12 18:41:31,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:31,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159826793] [2024-09-12 18:41:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:31,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:41:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:41:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:41:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:41:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:41:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:41:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:41:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 85 proven. 294 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:41:31,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159826793] [2024-09-12 18:41:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159826793] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491127575] [2024-09-12 18:41:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:31,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:31,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:31,499 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:31,500 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:41:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:31,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:41:31,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 617 proven. 187 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2024-09-12 18:41:31,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 177 proven. 187 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2024-09-12 18:41:32,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491127575] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:32,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:32,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 15 [2024-09-12 18:41:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054302489] [2024-09-12 18:41:32,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:32,014 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:41:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:41:32,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:32,015 INFO L87 Difference]: Start difference. First operand 6168 states and 7788 transitions. Second operand has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:41:36,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:36,514 INFO L93 Difference]: Finished difference Result 9133 states and 11775 transitions. [2024-09-12 18:41:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:41:36,515 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) Word has length 296 [2024-09-12 18:41:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:36,531 INFO L225 Difference]: With dead ends: 9133 [2024-09-12 18:41:36,531 INFO L226 Difference]: Without dead ends: 5133 [2024-09-12 18:41:36,539 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 645 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:41:36,539 INFO L434 NwaCegarLoop]: 201 mSDtfsCounter, 454 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:36,539 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1340 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:41:36,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2024-09-12 18:41:39,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 4613. [2024-09-12 18:41:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4613 states, 3840 states have (on average 1.1877604166666667) internal successors, (4561), 3865 states have internal predecessors, (4561), 598 states have call successors, (598), 159 states have call predecessors, (598), 157 states have return successors, (596), 588 states have call predecessors, (596), 596 states have call successors, (596) [2024-09-12 18:41:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4613 states to 4613 states and 5755 transitions. [2024-09-12 18:41:39,064 INFO L78 Accepts]: Start accepts. Automaton has 4613 states and 5755 transitions. Word has length 296 [2024-09-12 18:41:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:39,065 INFO L474 AbstractCegarLoop]: Abstraction has 4613 states and 5755 transitions. [2024-09-12 18:41:39,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:41:39,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4613 states and 5755 transitions. [2024-09-12 18:41:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-09-12 18:41:39,067 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:39,067 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:39,079 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-09-12 18:41:39,267 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:39,267 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:39,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash -677798653, now seen corresponding path program 6 times [2024-09-12 18:41:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826169000] [2024-09-12 18:41:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:39,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123418150] [2024-09-12 18:41:39,292 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:41:39,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:39,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:39,294 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:39,296 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:41:39,390 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-12 18:41:39,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:39,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 18:41:39,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2319 backedges. 181 proven. 351 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2024-09-12 18:41:39,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:40,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:40,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826169000] [2024-09-12 18:41:40,389 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:40,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123418150] [2024-09-12 18:41:40,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123418150] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:40,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:40,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:41:40,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239446973] [2024-09-12 18:41:40,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:40,390 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:41:40,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:40,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:41:40,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:41:40,390 INFO L87 Difference]: Start difference. First operand 4613 states and 5755 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:41:45,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:45,788 INFO L93 Difference]: Finished difference Result 5639 states and 7168 transitions. [2024-09-12 18:41:45,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:41:45,789 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 334 [2024-09-12 18:41:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:45,807 INFO L225 Difference]: With dead ends: 5639 [2024-09-12 18:41:45,807 INFO L226 Difference]: Without dead ends: 5609 [2024-09-12 18:41:45,809 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:41:45,809 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 221 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:45,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 645 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:41:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2024-09-12 18:41:48,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 4249. [2024-09-12 18:41:48,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 3538 states have (on average 1.1681741096664782) internal successors, (4133), 3561 states have internal predecessors, (4133), 537 states have call successors, (537), 159 states have call predecessors, (537), 157 states have return successors, (535), 528 states have call predecessors, (535), 535 states have call successors, (535) [2024-09-12 18:41:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 5205 transitions. [2024-09-12 18:41:48,386 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 5205 transitions. Word has length 334 [2024-09-12 18:41:48,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:48,386 INFO L474 AbstractCegarLoop]: Abstraction has 4249 states and 5205 transitions. [2024-09-12 18:41:48,386 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:41:48,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 5205 transitions. [2024-09-12 18:41:48,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-09-12 18:41:48,388 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:48,388 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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 18:41:48,394 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:48,588 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:41:48,589 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:48,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1753092151, now seen corresponding path program 2 times [2024-09-12 18:41:48,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:48,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121916473] [2024-09-12 18:41:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:48,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:41:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:41:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:41:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,836 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:41:48,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:41:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,841 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:41:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:41:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:41:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 100 proven. 426 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:41:48,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:48,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121916473] [2024-09-12 18:41:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121916473] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:48,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345088577] [2024-09-12 18:41:48,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:48,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:48,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:48,848 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:48,849 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:41:48,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:48,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:48,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:41:48,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 220 proven. 426 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 18:41:49,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 100 proven. 426 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:41:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345088577] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:49,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:49,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 15 [2024-09-12 18:41:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339923032] [2024-09-12 18:41:49,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:49,492 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:41:49,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:41:49,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:49,493 INFO L87 Difference]: Start difference. First operand 4249 states and 5205 transitions. Second operand has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) [2024-09-12 18:41:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:53,357 INFO L93 Difference]: Finished difference Result 5979 states and 7473 transitions. [2024-09-12 18:41:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:41:53,358 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) Word has length 337 [2024-09-12 18:41:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:53,370 INFO L225 Difference]: With dead ends: 5979 [2024-09-12 18:41:53,370 INFO L226 Difference]: Without dead ends: 3363 [2024-09-12 18:41:53,375 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 735 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:41:53,375 INFO L434 NwaCegarLoop]: 223 mSDtfsCounter, 511 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:53,376 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1827 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:41:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2024-09-12 18:41:54,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2908. [2024-09-12 18:41:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2401 states have (on average 1.1382757184506456) internal successors, (2733), 2422 states have internal predecessors, (2733), 348 states have call successors, (348), 144 states have call predecessors, (348), 142 states have return successors, (346), 341 states have call predecessors, (346), 346 states have call successors, (346) [2024-09-12 18:41:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3427 transitions. [2024-09-12 18:41:54,923 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3427 transitions. Word has length 337 [2024-09-12 18:41:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:54,923 INFO L474 AbstractCegarLoop]: Abstraction has 2908 states and 3427 transitions. [2024-09-12 18:41:54,923 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) [2024-09-12 18:41:54,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3427 transitions. [2024-09-12 18:41:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-09-12 18:41:54,925 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:54,925 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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 18:41:54,937 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-09-12 18:41:55,125 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:55,126 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:55,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1906360908, now seen corresponding path program 3 times [2024-09-12 18:41:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:55,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291525124] [2024-09-12 18:41:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:55,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731246627] [2024-09-12 18:41:55,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:41:55,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:55,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:55,156 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:55,158 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:41:55,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:41:55,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:55,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:41:55,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3078 backedges. 494 proven. 29 refuted. 0 times theorem prover too weak. 2555 trivial. 0 not checked. [2024-09-12 18:41:55,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:56,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:56,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291525124] [2024-09-12 18:41:56,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:56,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731246627] [2024-09-12 18:41:56,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731246627] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:56,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:56,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:41:56,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375653414] [2024-09-12 18:41:56,131 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:56,131 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:41:56,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:56,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:41:56,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:56,131 INFO L87 Difference]: Start difference. First operand 2908 states and 3427 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-09-12 18:42:00,549 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 [0] [2024-09-12 18:42:04,772 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 [0] [2024-09-12 18:42:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:08,130 INFO L93 Difference]: Finished difference Result 3553 states and 4318 transitions. [2024-09-12 18:42:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:42:08,131 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 378 [2024-09-12 18:42:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:08,141 INFO L225 Difference]: With dead ends: 3553 [2024-09-12 18:42:08,141 INFO L226 Difference]: Without dead ends: 3547 [2024-09-12 18:42:08,141 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:42:08,142 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 189 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 26 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:08,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 600 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1140 Invalid, 3 Unknown, 0 Unchecked, 9.9s Time] [2024-09-12 18:42:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2024-09-12 18:42:09,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 2733. [2024-09-12 18:42:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2255 states have (on average 1.1121951219512196) internal successors, (2508), 2276 states have internal predecessors, (2508), 319 states have call successors, (319), 144 states have call predecessors, (319), 142 states have return successors, (317), 312 states have call predecessors, (317), 317 states have call successors, (317) [2024-09-12 18:42:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3144 transitions. [2024-09-12 18:42:09,650 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3144 transitions. Word has length 378 [2024-09-12 18:42:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:09,651 INFO L474 AbstractCegarLoop]: Abstraction has 2733 states and 3144 transitions. [2024-09-12 18:42:09,651 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-09-12 18:42:09,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3144 transitions. [2024-09-12 18:42:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-09-12 18:42:09,653 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:09,653 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:09,665 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:09,854 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:09,854 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:09,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:09,854 INFO L85 PathProgramCache]: Analyzing trace with hash -428133688, now seen corresponding path program 2 times [2024-09-12 18:42:09,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:09,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931144638] [2024-09-12 18:42:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:09,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,483 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:42:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:42:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:42:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:42:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:42:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:42:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:42:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 18:42:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 0 proven. 835 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:10,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931144638] [2024-09-12 18:42:10,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931144638] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:10,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910339586] [2024-09-12 18:42:10,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:42:10,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:10,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:10,515 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:10,516 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:42:10,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 18:42:10,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:10,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:42:10,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2024-09-12 18:42:10,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:42:10,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910339586] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:42:10,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:42:10,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [29] total 32 [2024-09-12 18:42:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87903620] [2024-09-12 18:42:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:42:10,674 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:42:10,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:42:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:42:10,675 INFO L87 Difference]: Start difference. First operand 2733 states and 3144 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:42:12,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:12,236 INFO L93 Difference]: Finished difference Result 2743 states and 3150 transitions. [2024-09-12 18:42:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:42:12,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 428 [2024-09-12 18:42:12,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:12,245 INFO L225 Difference]: With dead ends: 2743 [2024-09-12 18:42:12,245 INFO L226 Difference]: Without dead ends: 2742 [2024-09-12 18:42:12,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=952, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:42:12,246 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 23 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:12,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 281 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:42:12,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2024-09-12 18:42:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2741. [2024-09-12 18:42:13,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2261 states have (on average 1.1065900044228218) internal successors, (2502), 2282 states have internal predecessors, (2502), 319 states have call successors, (319), 146 states have call predecessors, (319), 144 states have return successors, (317), 312 states have call predecessors, (317), 317 states have call successors, (317) [2024-09-12 18:42:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 3138 transitions. [2024-09-12 18:42:13,724 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 3138 transitions. Word has length 428 [2024-09-12 18:42:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:13,724 INFO L474 AbstractCegarLoop]: Abstraction has 2741 states and 3138 transitions. [2024-09-12 18:42:13,724 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:42:13,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 3138 transitions. [2024-09-12 18:42:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-09-12 18:42:13,726 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:13,727 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:13,738 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:13,927 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 18:42:13,927 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:13,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1522260820, now seen corresponding path program 1 times [2024-09-12 18:42:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:13,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355682059] [2024-09-12 18:42:13,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:42:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,675 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:42:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:42:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:42:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:42:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:42:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:42:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,682 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 18:42:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:14,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:14,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355682059] [2024-09-12 18:42:14,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355682059] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:14,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696148932] [2024-09-12 18:42:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:14,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:14,693 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:14,694 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:42:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:42:14,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:15,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 3760 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-09-12 18:42:15,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:15,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696148932] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:15,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:15,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28, 28] total 49 [2024-09-12 18:42:15,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640819566] [2024-09-12 18:42:15,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:15,885 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-09-12 18:42:15,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:15,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-09-12 18:42:15,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=1864, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 18:42:15,887 INFO L87 Difference]: Start difference. First operand 2741 states and 3138 transitions. Second operand has 49 states, 49 states have (on average 9.408163265306122) internal successors, (461), 48 states have internal predecessors, (461), 22 states have call successors, (121), 16 states have call predecessors, (121), 15 states have return successors, (119), 21 states have call predecessors, (119), 22 states have call successors, (119) [2024-09-12 18:42:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:19,690 INFO L93 Difference]: Finished difference Result 4611 states and 5421 transitions. [2024-09-12 18:42:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-09-12 18:42:19,691 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 9.408163265306122) internal successors, (461), 48 states have internal predecessors, (461), 22 states have call successors, (121), 16 states have call predecessors, (121), 15 states have return successors, (119), 21 states have call predecessors, (119), 22 states have call successors, (119) Word has length 431 [2024-09-12 18:42:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:19,701 INFO L225 Difference]: With dead ends: 4611 [2024-09-12 18:42:19,701 INFO L226 Difference]: Without dead ends: 3312 [2024-09-12 18:42:19,704 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 919 SyntacticMatches, 10 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4659 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2760, Invalid=12246, Unknown=0, NotChecked=0, Total=15006 [2024-09-12 18:42:19,704 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 441 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:19,704 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1199 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:42:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2024-09-12 18:42:21,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3214. [2024-09-12 18:42:21,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 2650 states have (on average 1.090188679245283) internal successors, (2889), 2670 states have internal predecessors, (2889), 375 states have call successors, (375), 174 states have call predecessors, (375), 172 states have return successors, (373), 369 states have call predecessors, (373), 373 states have call successors, (373) [2024-09-12 18:42:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 3637 transitions. [2024-09-12 18:42:21,479 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 3637 transitions. Word has length 431 [2024-09-12 18:42:21,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:21,479 INFO L474 AbstractCegarLoop]: Abstraction has 3214 states and 3637 transitions. [2024-09-12 18:42:21,480 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 9.408163265306122) internal successors, (461), 48 states have internal predecessors, (461), 22 states have call successors, (121), 16 states have call predecessors, (121), 15 states have return successors, (119), 21 states have call predecessors, (119), 22 states have call successors, (119) [2024-09-12 18:42:21,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:21,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 3637 transitions. [2024-09-12 18:42:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-09-12 18:42:21,482 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:21,482 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2024-09-12 18:42:21,495 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:21,682 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:21,683 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:21,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:21,683 INFO L85 PathProgramCache]: Analyzing trace with hash 667174059, now seen corresponding path program 3 times [2024-09-12 18:42:21,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:21,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547620631] [2024-09-12 18:42:21,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:21,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:42:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:42:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:42:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:42:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:42:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:42:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:42:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:42:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 18:42:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 18:42:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 18:42:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 18:42:22,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:22,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547620631] [2024-09-12 18:42:22,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547620631] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:22,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189937165] [2024-09-12 18:42:22,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:42:22,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:22,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:22,134 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:22,135 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:42:22,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:42:22,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:22,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:42:22,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 375 proven. 577 refuted. 0 times theorem prover too weak. 3481 trivial. 0 not checked. [2024-09-12 18:42:23,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:23,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189937165] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:23,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:42:23,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2024-09-12 18:42:23,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111511660] [2024-09-12 18:42:23,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:23,566 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:42:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:23,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:42:23,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1054, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:42:23,567 INFO L87 Difference]: Start difference. First operand 3214 states and 3637 transitions. Second operand has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) [2024-09-12 18:42:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:37,317 INFO L93 Difference]: Finished difference Result 4161 states and 4783 transitions. [2024-09-12 18:42:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-12 18:42:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) Word has length 445 [2024-09-12 18:42:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:37,329 INFO L225 Difference]: With dead ends: 4161 [2024-09-12 18:42:37,330 INFO L226 Difference]: Without dead ends: 4061 [2024-09-12 18:42:37,332 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3454 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1821, Invalid=9309, Unknown=0, NotChecked=0, Total=11130 [2024-09-12 18:42:37,332 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 951 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:37,332 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1019 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:42:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2024-09-12 18:42:39,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 3959. [2024-09-12 18:42:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3285 states have (on average 1.087062404870624) internal successors, (3571), 3305 states have internal predecessors, (3571), 485 states have call successors, (485), 174 states have call predecessors, (485), 172 states have return successors, (483), 479 states have call predecessors, (483), 483 states have call successors, (483) [2024-09-12 18:42:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 4539 transitions. [2024-09-12 18:42:39,826 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 4539 transitions. Word has length 445 [2024-09-12 18:42:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:39,827 INFO L474 AbstractCegarLoop]: Abstraction has 3959 states and 4539 transitions. [2024-09-12 18:42:39,827 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) [2024-09-12 18:42:39,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 4539 transitions. [2024-09-12 18:42:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-09-12 18:42:39,831 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:39,831 INFO L216 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 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 18:42:39,848 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-09-12 18:42:40,031 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:40,032 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:40,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -314930240, now seen corresponding path program 3 times [2024-09-12 18:42:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478528303] [2024-09-12 18:42:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:40,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,322 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:42:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:42:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:42:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:42:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:42:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:42:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:42:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 18:42:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,366 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 18:42:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 18:42:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:42:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 18:42:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 18:42:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 18:42:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 18:42:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 18:42:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 18:42:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-09-12 18:42:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 18:42:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:42:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478528303] [2024-09-12 18:42:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478528303] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193352412] [2024-09-12 18:42:40,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:42:40,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:40,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:40,387 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:40,391 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 18:42:40,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2024-09-12 18:42:40,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:40,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:42:40,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:42:40,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:42:41,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193352412] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:41,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:41,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 35 [2024-09-12 18:42:41,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22242925] [2024-09-12 18:42:41,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:41,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 18:42:41,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:41,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 18:42:41,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=857, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:42:41,900 INFO L87 Difference]: Start difference. First operand 3959 states and 4539 transitions. Second operand has 36 states, 35 states have (on average 18.685714285714287) internal successors, (654), 35 states have internal predecessors, (654), 34 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (126), 34 states have call predecessors, (126), 34 states have call successors, (126)