./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 --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 18:39:25,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:39:25,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:39:25,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:39:25,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:39:25,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:39:25,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:39:25,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:39:25,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:39:25,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:39:25,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:39:25,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:39:25,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:39:25,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:39:25,795 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:39:25,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:39:25,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:39:25,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:39:25,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:39:25,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:39:25,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:39:25,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:39:25,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:39:25,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:39:25,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:39:25,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:39:25,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:39:25,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:39:25,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:39:25,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:39:25,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:39:25,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:39:25,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:39:25,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:39:25,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:39:25,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:39:25,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:39:25,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:39:25,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:39:25,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:39:25,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:39:25,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:39:25,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:39:26,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:39:26,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:39:26,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:39:26,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:39:26,080 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:39:26,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2024-09-12 18:39:27,368 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:39:27,520 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:39:27,521 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2024-09-12 18:39:27,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/b1866ed2c/79993c3a1e5643bb9dc035d13e59e659/FLAG20ec4aac9 [2024-09-12 18:39:27,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/b1866ed2c/79993c3a1e5643bb9dc035d13e59e659 [2024-09-12 18:39:27,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:39:27,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:39:27,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:39:27,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:39:27,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:39:27,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:39:27" (1/1) ... [2024-09-12 18:39:27,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de22e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:27, skipping insertion in model container [2024-09-12 18:39:27,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:39:27" (1/1) ... [2024-09-12 18:39:27,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:39:28,049 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_valuebound10.c[576,589] [2024-09-12 18:39:28,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:39:28,084 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:39:28,094 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_valuebound10.c[576,589] [2024-09-12 18:39:28,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:39:28,116 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:39:28,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28 WrapperNode [2024-09-12 18:39:28,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:39:28,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:39:28,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:39:28,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:39:28,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,138 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:39:28,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:39:28,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:39:28,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:39:28,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:39:28,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,161 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 18:39:28,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:39:28,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:39:28,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:39:28,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:39:28,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (1/1) ... [2024-09-12 18:39:28,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:39:28,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:28,205 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 18:39:28,219 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 18:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:39:28,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:39:28,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:39:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:39:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:39:28,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:39:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:39:28,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:39:28,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:39:28,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:39:28,315 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:39:28,317 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:39:28,578 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-09-12 18:39:28,578 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:39:28,598 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:39:28,598 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:39:28,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:39:28 BoogieIcfgContainer [2024-09-12 18:39:28,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:39:28,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:39:28,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:39:28,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:39:28,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:39:27" (1/3) ... [2024-09-12 18:39:28,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2697763b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:39:28, skipping insertion in model container [2024-09-12 18:39:28,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:28" (2/3) ... [2024-09-12 18:39:28,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2697763b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:39:28, skipping insertion in model container [2024-09-12 18:39:28,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:39:28" (3/3) ... [2024-09-12 18:39:28,608 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c [2024-09-12 18:39:28,621 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:39:28,621 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-09-12 18:39:28,672 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:39:28,677 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;@753f3728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:39:28,679 INFO L337 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-09-12 18:39:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 47 states have (on average 1.8297872340425532) internal successors, (86), 78 states have internal predecessors, (86), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 18:39:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:39:28,689 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:28,689 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:28,690 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:28,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:28,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1804295604, now seen corresponding path program 1 times [2024-09-12 18:39:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707861628] [2024-09-12 18:39:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:28,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:28,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707861628] [2024-09-12 18:39:28,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707861628] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:28,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:28,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:28,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515809862] [2024-09-12 18:39:28,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:28,878 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:39:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:28,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:39:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:39:28,901 INFO L87 Difference]: Start difference. First operand has 95 states, 47 states have (on average 1.8297872340425532) internal successors, (86), 78 states have internal predecessors, (86), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:28,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:28,943 INFO L93 Difference]: Finished difference Result 184 states and 223 transitions. [2024-09-12 18:39:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:39:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 18:39:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:28,951 INFO L225 Difference]: With dead ends: 184 [2024-09-12 18:39:28,952 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 18:39:28,955 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:39:28,959 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:28,960 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:39:28,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 18:39:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-09-12 18:39:28,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 76 states have internal predecessors, (78), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:39:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2024-09-12 18:39:29,002 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 24 [2024-09-12 18:39:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:29,003 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2024-09-12 18:39:29,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:29,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,005 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2024-09-12 18:39:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 18:39:29,007 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:29,007 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:29,007 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:39:29,007 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:29,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1660646649, now seen corresponding path program 1 times [2024-09-12 18:39:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:29,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054141838] [2024-09-12 18:39:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:29,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135226348] [2024-09-12 18:39:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:29,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:29,048 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 18:39:29,049 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 18:39:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:29,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:39:29,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:29,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:29,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054141838] [2024-09-12 18:39:29,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:29,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135226348] [2024-09-12 18:39:29,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135226348] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:29,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:29,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:29,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161249909] [2024-09-12 18:39:29,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:29,110 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:29,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:29,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:29,111 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:39:29,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:29,206 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2024-09-12 18:39:29,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:29,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-09-12 18:39:29,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:29,208 INFO L225 Difference]: With dead ends: 116 [2024-09-12 18:39:29,208 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 18:39:29,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 18:39:29,209 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 19 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 173 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 18:39:29,210 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 173 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 18:39:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2024-09-12 18:39:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 48 states have (on average 1.6875) internal successors, (81), 79 states have internal predecessors, (81), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:39:29,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2024-09-12 18:39:29,220 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 24 [2024-09-12 18:39:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:29,220 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2024-09-12 18:39:29,220 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:39:29,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2024-09-12 18:39:29,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:39:29,221 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:29,221 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:29,234 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 18:39:29,422 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:29,423 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:29,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash -526366062, now seen corresponding path program 1 times [2024-09-12 18:39:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210631069] [2024-09-12 18:39:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:29,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507666939] [2024-09-12 18:39:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:29,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:29,444 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 18:39:29,445 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 18:39:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:29,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:39:29,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:29,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:29,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:29,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210631069] [2024-09-12 18:39:29,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:29,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507666939] [2024-09-12 18:39:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507666939] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:29,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:29,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:29,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109184400] [2024-09-12 18:39:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:29,563 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:29,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:29,564 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 18:39:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:29,693 INFO L93 Difference]: Finished difference Result 120 states and 131 transitions. [2024-09-12 18:39:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:29,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 29 [2024-09-12 18:39:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:29,696 INFO L225 Difference]: With dead ends: 120 [2024-09-12 18:39:29,697 INFO L226 Difference]: Without dead ends: 118 [2024-09-12 18:39:29,698 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 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 18:39:29,698 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 20 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:29,699 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 335 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:29,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-09-12 18:39:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 99. [2024-09-12 18:39:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 83 states have internal predecessors, (84), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:39:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2024-09-12 18:39:29,711 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 29 [2024-09-12 18:39:29,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:29,711 INFO L474 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2024-09-12 18:39:29,712 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 18:39:29,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2024-09-12 18:39:29,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:39:29,713 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:29,713 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:29,725 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 18:39:29,916 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:29,917 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:29,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash 968513603, now seen corresponding path program 1 times [2024-09-12 18:39:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959277070] [2024-09-12 18:39:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:29,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129380656] [2024-09-12 18:39:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:29,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:29,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:29,938 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 18:39:29,939 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 18:39:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:29,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:39:29,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:29,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:29,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:29,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959277070] [2024-09-12 18:39:29,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:29,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129380656] [2024-09-12 18:39:29,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129380656] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:29,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:29,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:29,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132498009] [2024-09-12 18:39:29,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:29,995 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:29,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:29,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:29,995 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:39:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:30,099 INFO L93 Difference]: Finished difference Result 156 states and 180 transitions. [2024-09-12 18:39:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2024-09-12 18:39:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:30,101 INFO L225 Difference]: With dead ends: 156 [2024-09-12 18:39:30,101 INFO L226 Difference]: Without dead ends: 150 [2024-09-12 18:39:30,102 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 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 18:39:30,102 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 46 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 146 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 18:39:30,103 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 146 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-09-12 18:39:30,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 129. [2024-09-12 18:39:30,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 76 states have (on average 1.6710526315789473) internal successors, (127), 107 states have internal predecessors, (127), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:39:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2024-09-12 18:39:30,126 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 31 [2024-09-12 18:39:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:30,126 INFO L474 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2024-09-12 18:39:30,126 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:39:30,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2024-09-12 18:39:30,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:39:30,127 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:30,128 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:30,142 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 18:39:30,328 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,328 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:30,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1266328635, now seen corresponding path program 1 times [2024-09-12 18:39:30,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:30,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053297543] [2024-09-12 18:39:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:30,532 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 11 [2024-09-12 18:39:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,577 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 18:39:30,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053297543] [2024-09-12 18:39:30,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053297543] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:30,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606560232] [2024-09-12 18:39:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:30,581 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 18:39:30,583 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 18:39:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:39:30,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:30,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:30,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606560232] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:30,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:30,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-09-12 18:39:30,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156046158] [2024-09-12 18:39:30,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:30,689 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:30,691 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:39:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:30,796 INFO L93 Difference]: Finished difference Result 149 states and 170 transitions. [2024-09-12 18:39:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 33 [2024-09-12 18:39:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:30,798 INFO L225 Difference]: With dead ends: 149 [2024-09-12 18:39:30,798 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 18:39:30,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:30,800 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:30,801 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 157 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 18:39:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 130. [2024-09-12 18:39:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 77 states have (on average 1.6363636363636365) internal successors, (126), 108 states have internal predecessors, (126), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:39:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 160 transitions. [2024-09-12 18:39:30,829 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 160 transitions. Word has length 33 [2024-09-12 18:39:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:30,829 INFO L474 AbstractCegarLoop]: Abstraction has 130 states and 160 transitions. [2024-09-12 18:39:30,830 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:39:30,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,830 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 160 transitions. [2024-09-12 18:39:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:39:30,831 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:30,831 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:30,844 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:31,031 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,032 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:31,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -601481951, now seen corresponding path program 1 times [2024-09-12 18:39:31,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:31,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459862568] [2024-09-12 18:39:31,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919509027] [2024-09-12 18:39:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:31,051 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 18:39:31,052 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 18:39:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:39:31,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:31,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:31,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:31,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459862568] [2024-09-12 18:39:31,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:31,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919509027] [2024-09-12 18:39:31,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919509027] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:31,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:31,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:31,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049619836] [2024-09-12 18:39:31,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:31,126 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:31,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:31,127 INFO L87 Difference]: Start difference. First operand 130 states and 160 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:39:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:31,225 INFO L93 Difference]: Finished difference Result 149 states and 167 transitions. [2024-09-12 18:39:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2024-09-12 18:39:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:31,226 INFO L225 Difference]: With dead ends: 149 [2024-09-12 18:39:31,226 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 18:39:31,226 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 18:39:31,227 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 154 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:31,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 160 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 18:39:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 131. [2024-09-12 18:39:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 78 states have (on average 1.6025641025641026) internal successors, (125), 109 states have internal predecessors, (125), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:39:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 159 transitions. [2024-09-12 18:39:31,250 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 159 transitions. Word has length 34 [2024-09-12 18:39:31,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:31,251 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 159 transitions. [2024-09-12 18:39:31,251 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 18:39:31,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 159 transitions. [2024-09-12 18:39:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:39:31,252 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:31,252 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 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 18:39:31,264 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 18:39:31,452 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:39:31,453 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:31,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash -202211443, now seen corresponding path program 1 times [2024-09-12 18:39:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:31,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615325260] [2024-09-12 18:39:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:31,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095035075] [2024-09-12 18:39:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:31,474 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 18:39:31,475 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 18:39:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:39:31,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:31,560 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 18:39:31,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:31,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:31,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615325260] [2024-09-12 18:39:31,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:31,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095035075] [2024-09-12 18:39:31,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095035075] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:31,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:31,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:31,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125659504] [2024-09-12 18:39:31,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:31,565 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:31,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:31,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:31,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:31,566 INFO L87 Difference]: Start difference. First operand 131 states and 159 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:39:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:31,706 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2024-09-12 18:39:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:31,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-09-12 18:39:31,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:31,708 INFO L225 Difference]: With dead ends: 152 [2024-09-12 18:39:31,708 INFO L226 Difference]: Without dead ends: 145 [2024-09-12 18:39:31,708 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:31,709 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 41 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 284 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 18:39:31,709 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 284 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-09-12 18:39:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 131. [2024-09-12 18:39:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 108 states have internal predecessors, (123), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:39:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 157 transitions. [2024-09-12 18:39:31,731 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 157 transitions. Word has length 38 [2024-09-12 18:39:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:31,732 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 157 transitions. [2024-09-12 18:39:31,732 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:39:31,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 157 transitions. [2024-09-12 18:39:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:39:31,733 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:31,733 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:31,746 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:39:31,936 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,937 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:31,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1183861910, now seen corresponding path program 1 times [2024-09-12 18:39:31,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:31,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145275362] [2024-09-12 18:39:31,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:31,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574377324] [2024-09-12 18:39:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:31,948 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 18:39:31,949 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 18:39:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:31,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:39:32,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:32,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145275362] [2024-09-12 18:39:32,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574377324] [2024-09-12 18:39:32,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574377324] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:32,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:32,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:32,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432110587] [2024-09-12 18:39:32,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:32,018 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:32,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:32,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:32,019 INFO L87 Difference]: Start difference. First operand 131 states and 157 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:39:32,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:32,247 INFO L93 Difference]: Finished difference Result 199 states and 267 transitions. [2024-09-12 18:39:32,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-09-12 18:39:32,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:32,249 INFO L225 Difference]: With dead ends: 199 [2024-09-12 18:39:32,249 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:39:32,250 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 18:39:32,250 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 76 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:32,250 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 120 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:32,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:39:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2024-09-12 18:39:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 115 states have (on average 1.5913043478260869) internal successors, (183), 146 states have internal predecessors, (183), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:39:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2024-09-12 18:39:32,268 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 42 [2024-09-12 18:39:32,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:32,268 INFO L474 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2024-09-12 18:39:32,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:39:32,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,269 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2024-09-12 18:39:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:39:32,269 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:32,269 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:32,282 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 18:39:32,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,474 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:32,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1954986543, now seen corresponding path program 1 times [2024-09-12 18:39:32,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:32,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723872650] [2024-09-12 18:39:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:32,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242933993] [2024-09-12 18:39:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:32,484 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 18:39:32,491 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 18:39:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:32,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:39:32,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:32,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723872650] [2024-09-12 18:39:32,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242933993] [2024-09-12 18:39:32,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242933993] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:32,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:32,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:32,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535797517] [2024-09-12 18:39:32,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:32,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:32,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:32,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:32,564 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:39:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:32,676 INFO L93 Difference]: Finished difference Result 197 states and 258 transitions. [2024-09-12 18:39:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:32,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-09-12 18:39:32,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:32,677 INFO L225 Difference]: With dead ends: 197 [2024-09-12 18:39:32,677 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:39:32,677 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 18:39:32,678 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:32,678 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 96 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:39:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 178. [2024-09-12 18:39:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 116 states have (on average 1.5517241379310345) internal successors, (180), 147 states have internal predecessors, (180), 26 states have call successors, (26), 6 states have call predecessors, (26), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:39:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 230 transitions. [2024-09-12 18:39:32,698 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 230 transitions. Word has length 43 [2024-09-12 18:39:32,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:32,699 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 230 transitions. [2024-09-12 18:39:32,699 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:39:32,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 230 transitions. [2024-09-12 18:39:32,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:39:32,700 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:32,700 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:32,714 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:32,901 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,902 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:32,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash 25349721, now seen corresponding path program 1 times [2024-09-12 18:39:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:32,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402537993] [2024-09-12 18:39:32,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:32,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312720754] [2024-09-12 18:39:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:32,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:32,912 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 18:39:32,913 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 18:39:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:32,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:39:32,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:39:32,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402537993] [2024-09-12 18:39:32,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312720754] [2024-09-12 18:39:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312720754] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695219233] [2024-09-12 18:39:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:32,984 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:32,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:32,985 INFO L87 Difference]: Start difference. First operand 178 states and 230 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:39:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:33,275 INFO L93 Difference]: Finished difference Result 196 states and 258 transitions. [2024-09-12 18:39:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:33,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 47 [2024-09-12 18:39:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:33,277 INFO L225 Difference]: With dead ends: 196 [2024-09-12 18:39:33,277 INFO L226 Difference]: Without dead ends: 194 [2024-09-12 18:39:33,277 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 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 18:39:33,278 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 32 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:33,278 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 195 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:33,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-09-12 18:39:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 183. [2024-09-12 18:39:33,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 119 states have (on average 1.5378151260504203) internal successors, (183), 151 states have internal predecessors, (183), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 235 transitions. [2024-09-12 18:39:33,294 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 235 transitions. Word has length 47 [2024-09-12 18:39:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:33,294 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 235 transitions. [2024-09-12 18:39:33,294 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-09-12 18:39:33,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 235 transitions. [2024-09-12 18:39:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:39:33,295 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:33,295 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:33,311 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:33,495 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:39:33,496 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:33,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:33,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1251495477, now seen corresponding path program 1 times [2024-09-12 18:39:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875134487] [2024-09-12 18:39:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 18:39:33,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875134487] [2024-09-12 18:39:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875134487] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967386737] [2024-09-12 18:39:33,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:33,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:33,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:33,649 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 18:39:33,650 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 18:39:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:33,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-09-12 18:39:33,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967386737] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2024-09-12 18:39:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967231215] [2024-09-12 18:39:33,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:33,747 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:33,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:33,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:33,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:33,749 INFO L87 Difference]: Start difference. First operand 183 states and 235 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:33,938 INFO L93 Difference]: Finished difference Result 189 states and 240 transitions. [2024-09-12 18:39:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:39:33,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 61 [2024-09-12 18:39:33,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:33,942 INFO L225 Difference]: With dead ends: 189 [2024-09-12 18:39:33,942 INFO L226 Difference]: Without dead ends: 186 [2024-09-12 18:39:33,942 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:33,943 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 68 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:33,943 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 264 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:33,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-09-12 18:39:33,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-09-12 18:39:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 122 states have (on average 1.4918032786885247) internal successors, (182), 153 states have internal predecessors, (182), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 234 transitions. [2024-09-12 18:39:33,962 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 234 transitions. Word has length 61 [2024-09-12 18:39:33,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:33,963 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 234 transitions. [2024-09-12 18:39:33,963 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:33,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:33,963 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 234 transitions. [2024-09-12 18:39:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:39:33,964 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:33,964 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:33,980 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 18:39:34,168 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:39:34,168 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:34,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 96469060, now seen corresponding path program 1 times [2024-09-12 18:39:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989949481] [2024-09-12 18:39:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:34,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:34,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989949481] [2024-09-12 18:39:34,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989949481] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:34,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:34,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:34,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030807022] [2024-09-12 18:39:34,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:34,231 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:34,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:34,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:34,232 INFO L87 Difference]: Start difference. First operand 186 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:34,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:34,584 INFO L93 Difference]: Finished difference Result 218 states and 263 transitions. [2024-09-12 18:39:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:34,584 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), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2024-09-12 18:39:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:34,586 INFO L225 Difference]: With dead ends: 218 [2024-09-12 18:39:34,586 INFO L226 Difference]: Without dead ends: 216 [2024-09-12 18:39:34,586 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 18:39:34,586 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 116 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:34,586 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 108 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:34,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-09-12 18:39:34,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 188. [2024-09-12 18:39:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 124 states have (on average 1.467741935483871) internal successors, (182), 155 states have internal predecessors, (182), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 234 transitions. [2024-09-12 18:39:34,606 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 234 transitions. Word has length 63 [2024-09-12 18:39:34,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:34,606 INFO L474 AbstractCegarLoop]: Abstraction has 188 states and 234 transitions. [2024-09-12 18:39:34,606 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), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:34,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 234 transitions. [2024-09-12 18:39:34,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:39:34,607 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:34,608 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:34,608 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 18:39:34,610 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:34,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1304426332, now seen corresponding path program 1 times [2024-09-12 18:39:34,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419420761] [2024-09-12 18:39:34,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:34,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:34,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419420761] [2024-09-12 18:39:34,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419420761] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:34,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:34,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:34,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75942459] [2024-09-12 18:39:34,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:34,668 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:34,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:34,668 INFO L87 Difference]: Start difference. First operand 188 states and 234 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:34,805 INFO L93 Difference]: Finished difference Result 218 states and 259 transitions. [2024-09-12 18:39:34,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:34,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 64 [2024-09-12 18:39:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:34,806 INFO L225 Difference]: With dead ends: 218 [2024-09-12 18:39:34,807 INFO L226 Difference]: Without dead ends: 216 [2024-09-12 18:39:34,808 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 18:39:34,808 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 113 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:34,809 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 110 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-09-12 18:39:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 190. [2024-09-12 18:39:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 157 states have internal predecessors, (182), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 234 transitions. [2024-09-12 18:39:34,837 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 234 transitions. Word has length 64 [2024-09-12 18:39:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:34,838 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 234 transitions. [2024-09-12 18:39:34,838 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:34,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,839 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 234 transitions. [2024-09-12 18:39:34,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:39:34,839 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:34,840 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:34,840 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 18:39:34,840 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:34,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,840 INFO L85 PathProgramCache]: Analyzing trace with hash 576748828, now seen corresponding path program 1 times [2024-09-12 18:39:34,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848462401] [2024-09-12 18:39:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,883 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848462401] [2024-09-12 18:39:34,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848462401] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:34,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:34,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:34,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714094433] [2024-09-12 18:39:34,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:34,897 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:34,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:34,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:34,898 INFO L87 Difference]: Start difference. First operand 190 states and 234 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:39:34,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:34,957 INFO L93 Difference]: Finished difference Result 194 states and 234 transitions. [2024-09-12 18:39:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:34,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-09-12 18:39:34,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:34,959 INFO L225 Difference]: With dead ends: 194 [2024-09-12 18:39:34,959 INFO L226 Difference]: Without dead ends: 193 [2024-09-12 18:39:34,959 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 18:39:34,960 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 12 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:34,960 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 153 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:39:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-09-12 18:39:34,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2024-09-12 18:39:34,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.4365079365079365) internal successors, (181), 157 states have internal predecessors, (181), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 233 transitions. [2024-09-12 18:39:34,979 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 233 transitions. Word has length 66 [2024-09-12 18:39:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:34,980 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 233 transitions. [2024-09-12 18:39:34,980 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:39:34,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 233 transitions. [2024-09-12 18:39:34,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:39:34,980 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:34,981 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:34,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:39:34,981 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:34,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 699344617, now seen corresponding path program 1 times [2024-09-12 18:39:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:34,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083597618] [2024-09-12 18:39:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:34,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083597618] [2024-09-12 18:39:35,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083597618] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:35,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:35,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042370053] [2024-09-12 18:39:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,055 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:35,056 INFO L87 Difference]: Start difference. First operand 190 states and 233 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:35,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:35,137 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2024-09-12 18:39:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:35,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2024-09-12 18:39:35,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:35,138 INFO L225 Difference]: With dead ends: 190 [2024-09-12 18:39:35,138 INFO L226 Difference]: Without dead ends: 189 [2024-09-12 18:39:35,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:35,139 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 104 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:35,139 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 185 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-09-12 18:39:35,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-09-12 18:39:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.4206349206349207) internal successors, (179), 156 states have internal predecessors, (179), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:39:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 231 transitions. [2024-09-12 18:39:35,159 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 231 transitions. Word has length 67 [2024-09-12 18:39:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:35,159 INFO L474 AbstractCegarLoop]: Abstraction has 189 states and 231 transitions. [2024-09-12 18:39:35,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:35,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 231 transitions. [2024-09-12 18:39:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:39:35,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:35,161 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:35,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:39:35,161 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:35,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,161 INFO L85 PathProgramCache]: Analyzing trace with hash 699345899, now seen corresponding path program 1 times [2024-09-12 18:39:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:35,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672224398] [2024-09-12 18:39:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,227 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:35,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672224398] [2024-09-12 18:39:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672224398] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:35,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781039177] [2024-09-12 18:39:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,230 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:35,231 INFO L87 Difference]: Start difference. First operand 189 states and 231 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:39:35,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:35,612 INFO L93 Difference]: Finished difference Result 242 states and 292 transitions. [2024-09-12 18:39:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:39:35,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2024-09-12 18:39:35,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:35,614 INFO L225 Difference]: With dead ends: 242 [2024-09-12 18:39:35,614 INFO L226 Difference]: Without dead ends: 241 [2024-09-12 18:39:35,614 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:35,615 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 268 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:35,615 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 285 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-09-12 18:39:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 218. [2024-09-12 18:39:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 150 states have (on average 1.4133333333333333) internal successors, (212), 180 states have internal predecessors, (212), 32 states have call successors, (32), 8 states have call predecessors, (32), 7 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 18:39:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 274 transitions. [2024-09-12 18:39:35,649 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 274 transitions. Word has length 67 [2024-09-12 18:39:35,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:35,649 INFO L474 AbstractCegarLoop]: Abstraction has 218 states and 274 transitions. [2024-09-12 18:39:35,649 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:39:35,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 274 transitions. [2024-09-12 18:39:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:39:35,650 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:35,650 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:35,650 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:39:35,650 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:35,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,650 INFO L85 PathProgramCache]: Analyzing trace with hash 204846782, now seen corresponding path program 1 times [2024-09-12 18:39:35,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:35,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192791627] [2024-09-12 18:39:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:35,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:35,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192791627] [2024-09-12 18:39:35,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192791627] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:35,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:35,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:35,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859872685] [2024-09-12 18:39:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:35,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:35,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:35,710 INFO L87 Difference]: Start difference. First operand 218 states and 274 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:35,893 INFO L93 Difference]: Finished difference Result 239 states and 287 transitions. [2024-09-12 18:39:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:35,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2024-09-12 18:39:35,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:35,899 INFO L225 Difference]: With dead ends: 239 [2024-09-12 18:39:35,899 INFO L226 Difference]: Without dead ends: 237 [2024-09-12 18:39:35,899 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 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 18:39:35,900 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 41 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:35,900 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 190 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-09-12 18:39:35,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 222. [2024-09-12 18:39:35,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 184 states have internal predecessors, (216), 32 states have call successors, (32), 8 states have call predecessors, (32), 7 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 18:39:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2024-09-12 18:39:35,938 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 68 [2024-09-12 18:39:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:35,939 INFO L474 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2024-09-12 18:39:35,939 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:39:35,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2024-09-12 18:39:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 18:39:35,940 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:35,941 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:35,941 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:39:35,941 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:35,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash -255927567, now seen corresponding path program 1 times [2024-09-12 18:39:35,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:35,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811580998] [2024-09-12 18:39:35,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:35,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:36,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:36,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811580998] [2024-09-12 18:39:36,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811580998] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:36,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827460633] [2024-09-12 18:39:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:36,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:36,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:36,074 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 18:39:36,075 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 18:39:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:36,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:36,225 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:39:36,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827460633] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:36,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:39:36,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 9] total 12 [2024-09-12 18:39:36,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132038523] [2024-09-12 18:39:36,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:36,312 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:36,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:36,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:36,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:36,313 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:39:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:36,798 INFO L93 Difference]: Finished difference Result 239 states and 304 transitions. [2024-09-12 18:39:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:36,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-09-12 18:39:36,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:36,800 INFO L225 Difference]: With dead ends: 239 [2024-09-12 18:39:36,800 INFO L226 Difference]: Without dead ends: 237 [2024-09-12 18:39:36,800 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:36,801 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 27 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:36,801 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 211 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:36,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-09-12 18:39:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 226. [2024-09-12 18:39:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 157 states have (on average 1.394904458598726) internal successors, (219), 187 states have internal predecessors, (219), 32 states have call successors, (32), 9 states have call predecessors, (32), 8 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 18:39:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 281 transitions. [2024-09-12 18:39:36,835 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 281 transitions. Word has length 73 [2024-09-12 18:39:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:36,835 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 281 transitions. [2024-09-12 18:39:36,835 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 18:39:36,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:36,836 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 281 transitions. [2024-09-12 18:39:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:36,836 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:36,837 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 18:39:36,850 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:39:37,040 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:39:37,040 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:37,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1594744625, now seen corresponding path program 1 times [2024-09-12 18:39:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:37,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327036215] [2024-09-12 18:39:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072319930] [2024-09-12 18:39:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:37,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:37,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:37,050 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 18:39:37,051 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 18:39:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:37,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:39:37,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:37,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:37,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327036215] [2024-09-12 18:39:37,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072319930] [2024-09-12 18:39:37,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072319930] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:37,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:37,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:39:37,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419498064] [2024-09-12 18:39:37,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:37,478 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:37,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:37,479 INFO L87 Difference]: Start difference. First operand 226 states and 281 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:37,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:37,983 INFO L93 Difference]: Finished difference Result 323 states and 402 transitions. [2024-09-12 18:39:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:39:37,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 78 [2024-09-12 18:39:37,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:37,985 INFO L225 Difference]: With dead ends: 323 [2024-09-12 18:39:37,985 INFO L226 Difference]: Without dead ends: 314 [2024-09-12 18:39:37,986 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:37,986 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 305 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:37,986 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 355 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-09-12 18:39:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 263. [2024-09-12 18:39:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 189 states have (on average 1.380952380952381) internal successors, (261), 219 states have internal predecessors, (261), 38 states have call successors, (38), 9 states have call predecessors, (38), 8 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-09-12 18:39:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 335 transitions. [2024-09-12 18:39:38,037 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 335 transitions. Word has length 78 [2024-09-12 18:39:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:38,037 INFO L474 AbstractCegarLoop]: Abstraction has 263 states and 335 transitions. [2024-09-12 18:39:38,037 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:38,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 335 transitions. [2024-09-12 18:39:38,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:38,038 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:38,038 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 18:39:38,050 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:39:38,242 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:38,243 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:38,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:38,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2102524243, now seen corresponding path program 1 times [2024-09-12 18:39:38,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:38,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362183182] [2024-09-12 18:39:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:38,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:38,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804666064] [2024-09-12 18:39:38,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:38,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:38,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:38,255 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 18:39:38,256 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 18:39:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:39:38,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:38,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362183182] [2024-09-12 18:39:39,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804666064] [2024-09-12 18:39:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804666064] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:39,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:39:39,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179956900] [2024-09-12 18:39:39,040 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:39,040 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:39,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:39,041 INFO L87 Difference]: Start difference. First operand 263 states and 335 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:39,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:39,534 INFO L93 Difference]: Finished difference Result 351 states and 440 transitions. [2024-09-12 18:39:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 79 [2024-09-12 18:39:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:39,536 INFO L225 Difference]: With dead ends: 351 [2024-09-12 18:39:39,536 INFO L226 Difference]: Without dead ends: 348 [2024-09-12 18:39:39,537 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:39,537 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 249 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:39,537 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 389 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-09-12 18:39:39,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 319. [2024-09-12 18:39:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 235 states have (on average 1.374468085106383) internal successors, (323), 265 states have internal predecessors, (323), 48 states have call successors, (48), 9 states have call predecessors, (48), 8 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 18:39:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 417 transitions. [2024-09-12 18:39:39,595 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 417 transitions. Word has length 79 [2024-09-12 18:39:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:39,596 INFO L474 AbstractCegarLoop]: Abstraction has 319 states and 417 transitions. [2024-09-12 18:39:39,596 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:39,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,596 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 417 transitions. [2024-09-12 18:39:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:39:39,596 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:39,597 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:39,609 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:39,797 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:39,797 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:39,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:39,798 INFO L85 PathProgramCache]: Analyzing trace with hash 753742161, now seen corresponding path program 1 times [2024-09-12 18:39:39,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:39,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407913448] [2024-09-12 18:39:39,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:39,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 18:39:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:39:39,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:39,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407913448] [2024-09-12 18:39:39,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407913448] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:39,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:39,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957113935] [2024-09-12 18:39:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:39,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:39,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:39,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:39,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:39,913 INFO L87 Difference]: Start difference. First operand 319 states and 417 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:39:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:40,763 INFO L93 Difference]: Finished difference Result 449 states and 595 transitions. [2024-09-12 18:39:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:39:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2024-09-12 18:39:40,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:40,768 INFO L225 Difference]: With dead ends: 449 [2024-09-12 18:39:40,768 INFO L226 Difference]: Without dead ends: 446 [2024-09-12 18:39:40,769 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:40,769 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 130 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:40,769 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 228 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-09-12 18:39:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 323. [2024-09-12 18:39:40,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 241 states have (on average 1.3443983402489628) internal successors, (324), 267 states have internal predecessors, (324), 48 states have call successors, (48), 9 states have call predecessors, (48), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 18:39:40,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 418 transitions. [2024-09-12 18:39:40,832 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 418 transitions. Word has length 80 [2024-09-12 18:39:40,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:40,833 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 418 transitions. [2024-09-12 18:39:40,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 18:39:40,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:40,833 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 418 transitions. [2024-09-12 18:39:40,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:39:40,834 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:40,834 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 18:39:40,834 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:39:40,834 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:40,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1186961614, now seen corresponding path program 1 times [2024-09-12 18:39:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135262236] [2024-09-12 18:39:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:40,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028840989] [2024-09-12 18:39:40,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:40,845 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 18:39:40,846 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 18:39:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:39:40,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:41,051 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:41,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:41,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:41,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135262236] [2024-09-12 18:39:41,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:41,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028840989] [2024-09-12 18:39:41,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028840989] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:41,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:41,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:41,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879930128] [2024-09-12 18:39:41,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:41,105 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:41,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:41,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:41,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:41,105 INFO L87 Difference]: Start difference. First operand 323 states and 418 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:41,479 INFO L93 Difference]: Finished difference Result 367 states and 485 transitions. [2024-09-12 18:39:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:39:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 80 [2024-09-12 18:39:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:41,481 INFO L225 Difference]: With dead ends: 367 [2024-09-12 18:39:41,482 INFO L226 Difference]: Without dead ends: 361 [2024-09-12 18:39:41,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:41,482 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 244 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:41,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 234 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-09-12 18:39:41,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 317. [2024-09-12 18:39:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 241 states have (on average 1.2821576763485478) internal successors, (309), 261 states have internal predecessors, (309), 48 states have call successors, (48), 9 states have call predecessors, (48), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 18:39:41,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 403 transitions. [2024-09-12 18:39:41,545 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 403 transitions. Word has length 80 [2024-09-12 18:39:41,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:41,546 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 403 transitions. [2024-09-12 18:39:41,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:41,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 403 transitions. [2024-09-12 18:39:41,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:39:41,549 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:41,549 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:41,561 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 18:39:41,749 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 18:39:41,750 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:41,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1891170581, now seen corresponding path program 1 times [2024-09-12 18:39:41,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:41,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332946580] [2024-09-12 18:39:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:41,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:41,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636338248] [2024-09-12 18:39:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:41,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:41,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:41,762 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 18:39:41,762 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 18:39:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:41,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:41,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:42,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:42,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332946580] [2024-09-12 18:39:42,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636338248] [2024-09-12 18:39:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636338248] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:42,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:42,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:39:42,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727336456] [2024-09-12 18:39:42,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:42,546 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:42,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:42,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:42,547 INFO L87 Difference]: Start difference. First operand 317 states and 403 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:43,116 INFO L93 Difference]: Finished difference Result 337 states and 415 transitions. [2024-09-12 18:39:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 81 [2024-09-12 18:39:43,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:43,118 INFO L225 Difference]: With dead ends: 337 [2024-09-12 18:39:43,118 INFO L226 Difference]: Without dead ends: 334 [2024-09-12 18:39:43,119 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:43,119 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 244 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:43,119 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 415 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-09-12 18:39:43,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 319. [2024-09-12 18:39:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 243 states have (on average 1.2674897119341564) internal successors, (308), 263 states have internal predecessors, (308), 48 states have call successors, (48), 9 states have call predecessors, (48), 8 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 18:39:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 402 transitions. [2024-09-12 18:39:43,185 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 402 transitions. Word has length 81 [2024-09-12 18:39:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:43,185 INFO L474 AbstractCegarLoop]: Abstraction has 319 states and 402 transitions. [2024-09-12 18:39:43,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:43,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 402 transitions. [2024-09-12 18:39:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:39:43,186 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:43,186 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:43,201 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 18:39:43,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:39:43,387 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:43,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:43,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1858895541, now seen corresponding path program 1 times [2024-09-12 18:39:43,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:43,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837473831] [2024-09-12 18:39:43,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:43,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:43,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612707306] [2024-09-12 18:39:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:43,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:43,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:43,402 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 18:39:43,404 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 18:39:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:43,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:39:43,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:43,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:43,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837473831] [2024-09-12 18:39:43,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612707306] [2024-09-12 18:39:43,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612707306] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:43,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:43,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:43,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757565650] [2024-09-12 18:39:43,902 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:43,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:43,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:43,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:43,903 INFO L87 Difference]: Start difference. First operand 319 states and 402 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:44,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:44,456 INFO L93 Difference]: Finished difference Result 613 states and 823 transitions. [2024-09-12 18:39:44,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:44,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 81 [2024-09-12 18:39:44,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:44,459 INFO L225 Difference]: With dead ends: 613 [2024-09-12 18:39:44,459 INFO L226 Difference]: Without dead ends: 609 [2024-09-12 18:39:44,459 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:44,460 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 357 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:44,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 412 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-09-12 18:39:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 493. [2024-09-12 18:39:44,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 387 states have (on average 1.2713178294573644) internal successors, (492), 407 states have internal predecessors, (492), 78 states have call successors, (78), 9 states have call predecessors, (78), 8 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:39:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 646 transitions. [2024-09-12 18:39:44,573 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 646 transitions. Word has length 81 [2024-09-12 18:39:44,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:44,573 INFO L474 AbstractCegarLoop]: Abstraction has 493 states and 646 transitions. [2024-09-12 18:39:44,574 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2024-09-12 18:39:44,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 646 transitions. [2024-09-12 18:39:44,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:39:44,575 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:44,575 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:44,590 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:39:44,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:44,780 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:44,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,780 INFO L85 PathProgramCache]: Analyzing trace with hash 185483649, now seen corresponding path program 1 times [2024-09-12 18:39:44,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:44,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015090966] [2024-09-12 18:39:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:44,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224502332] [2024-09-12 18:39:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:44,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:44,793 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 18:39:44,794 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 18:39:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:44,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:39:44,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-12 18:39:45,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:39:45,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:45,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015090966] [2024-09-12 18:39:45,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:45,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224502332] [2024-09-12 18:39:45,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224502332] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:45,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:45,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-09-12 18:39:45,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315321949] [2024-09-12 18:39:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:45,278 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:45,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:45,279 INFO L87 Difference]: Start difference. First operand 493 states and 646 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:39:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:45,873 INFO L93 Difference]: Finished difference Result 597 states and 784 transitions. [2024-09-12 18:39:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 85 [2024-09-12 18:39:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:45,875 INFO L225 Difference]: With dead ends: 597 [2024-09-12 18:39:45,875 INFO L226 Difference]: Without dead ends: 590 [2024-09-12 18:39:45,876 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 152 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 18:39:45,876 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 155 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:45,876 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 209 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-09-12 18:39:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 579. [2024-09-12 18:39:46,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 457 states have (on average 1.2713347921225382) internal successors, (581), 477 states have internal predecessors, (581), 92 states have call successors, (92), 11 states have call predecessors, (92), 10 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:46,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 763 transitions. [2024-09-12 18:39:46,031 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 763 transitions. Word has length 85 [2024-09-12 18:39:46,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:46,031 INFO L474 AbstractCegarLoop]: Abstraction has 579 states and 763 transitions. [2024-09-12 18:39:46,031 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:39:46,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:46,031 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 763 transitions. [2024-09-12 18:39:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:39:46,031 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:46,032 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:46,045 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 18:39:46,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:46,238 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:46,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:46,238 INFO L85 PathProgramCache]: Analyzing trace with hash -570513547, now seen corresponding path program 1 times [2024-09-12 18:39:46,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:46,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386295194] [2024-09-12 18:39:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:46,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:46,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135087546] [2024-09-12 18:39:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:46,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:46,249 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 18:39:46,250 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 18:39:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:46,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:39:46,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 18:39:46,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-09-12 18:39:46,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:46,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386295194] [2024-09-12 18:39:46,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:46,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135087546] [2024-09-12 18:39:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135087546] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:46,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:39:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598330392] [2024-09-12 18:39:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:46,423 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:46,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:46,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:46,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:46,424 INFO L87 Difference]: Start difference. First operand 579 states and 763 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:39:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:47,138 INFO L93 Difference]: Finished difference Result 585 states and 768 transitions. [2024-09-12 18:39:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:47,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2024-09-12 18:39:47,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:47,141 INFO L225 Difference]: With dead ends: 585 [2024-09-12 18:39:47,141 INFO L226 Difference]: Without dead ends: 583 [2024-09-12 18:39:47,141 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:47,142 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:47,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 132 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-09-12 18:39:47,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2024-09-12 18:39:47,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 460 states have (on average 1.2695652173913043) internal successors, (584), 480 states have internal predecessors, (584), 92 states have call successors, (92), 12 states have call predecessors, (92), 11 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 766 transitions. [2024-09-12 18:39:47,294 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 766 transitions. Word has length 85 [2024-09-12 18:39:47,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:47,295 INFO L474 AbstractCegarLoop]: Abstraction has 583 states and 766 transitions. [2024-09-12 18:39:47,295 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:39:47,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 766 transitions. [2024-09-12 18:39:47,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:39:47,296 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:47,296 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2024-09-12 18:39:47,308 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:39:47,499 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 18:39:47,499 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:47,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash 600181512, now seen corresponding path program 1 times [2024-09-12 18:39:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:47,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934078690] [2024-09-12 18:39:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:47,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:47,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:47,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934078690] [2024-09-12 18:39:47,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934078690] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:47,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285461928] [2024-09-12 18:39:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:47,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:47,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:47,588 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 18:39:47,589 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 18:39:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:47,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:47,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:47,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285461928] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:47,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:47,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 18:39:47,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784118779] [2024-09-12 18:39:47,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:47,762 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:47,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:47,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:47,763 INFO L87 Difference]: Start difference. First operand 583 states and 766 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:39:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:48,557 INFO L93 Difference]: Finished difference Result 899 states and 1204 transitions. [2024-09-12 18:39:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 102 [2024-09-12 18:39:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:48,561 INFO L225 Difference]: With dead ends: 899 [2024-09-12 18:39:48,561 INFO L226 Difference]: Without dead ends: 897 [2024-09-12 18:39:48,561 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=157, Invalid=305, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:39:48,561 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 658 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:48,562 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 426 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-09-12 18:39:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 766. [2024-09-12 18:39:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 608 states have (on average 1.263157894736842) internal successors, (768), 627 states have internal predecessors, (768), 128 states have call successors, (128), 12 states have call predecessors, (128), 11 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-09-12 18:39:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1022 transitions. [2024-09-12 18:39:48,766 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1022 transitions. Word has length 102 [2024-09-12 18:39:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:48,775 INFO L474 AbstractCegarLoop]: Abstraction has 766 states and 1022 transitions. [2024-09-12 18:39:48,775 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:39:48,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1022 transitions. [2024-09-12 18:39:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:39:48,776 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:48,776 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2024-09-12 18:39:48,788 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:48,980 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:39:48,981 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:48,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:48,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1248818816, now seen corresponding path program 1 times [2024-09-12 18:39:48,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:48,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62370790] [2024-09-12 18:39:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:49,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:49,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62370790] [2024-09-12 18:39:49,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62370790] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:49,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:49,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:49,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604754302] [2024-09-12 18:39:49,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:49,050 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:49,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:49,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:49,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:49,051 INFO L87 Difference]: Start difference. First operand 766 states and 1022 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:39:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:49,304 INFO L93 Difference]: Finished difference Result 766 states and 1022 transitions. [2024-09-12 18:39:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-09-12 18:39:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:49,307 INFO L225 Difference]: With dead ends: 766 [2024-09-12 18:39:49,307 INFO L226 Difference]: Without dead ends: 765 [2024-09-12 18:39:49,308 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 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 18:39:49,308 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 16 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:49,308 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 168 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:39:49,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-09-12 18:39:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 765. [2024-09-12 18:39:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 608 states have (on average 1.256578947368421) internal successors, (764), 626 states have internal predecessors, (764), 128 states have call successors, (128), 12 states have call predecessors, (128), 11 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-09-12 18:39:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1018 transitions. [2024-09-12 18:39:49,507 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1018 transitions. Word has length 104 [2024-09-12 18:39:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:49,507 INFO L474 AbstractCegarLoop]: Abstraction has 765 states and 1018 transitions. [2024-09-12 18:39:49,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-09-12 18:39:49,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1018 transitions. [2024-09-12 18:39:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 18:39:49,508 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:49,508 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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 18:39:49,508 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-09-12 18:39:49,509 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:49,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:49,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1819010850, now seen corresponding path program 1 times [2024-09-12 18:39:49,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:49,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127032685] [2024-09-12 18:39:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:49,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:49,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127032685] [2024-09-12 18:39:49,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127032685] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:49,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954305388] [2024-09-12 18:39:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:49,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:49,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:49,585 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 18:39:49,587 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 18:39:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:49,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:49,723 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:49,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954305388] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:49,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:49,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-09-12 18:39:49,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082045806] [2024-09-12 18:39:49,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:49,724 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:49,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:49,725 INFO L87 Difference]: Start difference. First operand 765 states and 1018 transitions. Second operand has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:39:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:50,191 INFO L93 Difference]: Finished difference Result 783 states and 1051 transitions. [2024-09-12 18:39:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:50,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 106 [2024-09-12 18:39:50,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:50,194 INFO L225 Difference]: With dead ends: 783 [2024-09-12 18:39:50,194 INFO L226 Difference]: Without dead ends: 782 [2024-09-12 18:39:50,195 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:50,195 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 46 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:50,195 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 157 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-09-12 18:39:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 764. [2024-09-12 18:39:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 608 states have (on average 1.25) internal successors, (760), 625 states have internal predecessors, (760), 128 states have call successors, (128), 12 states have call predecessors, (128), 11 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-09-12 18:39:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1014 transitions. [2024-09-12 18:39:50,400 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1014 transitions. Word has length 106 [2024-09-12 18:39:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:50,400 INFO L474 AbstractCegarLoop]: Abstraction has 764 states and 1014 transitions. [2024-09-12 18:39:50,400 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.25) internal successors, (49), 5 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:39:50,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1014 transitions. [2024-09-12 18:39:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:39:50,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:50,402 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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 18:39:50,414 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:50,606 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:39:50,606 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:50,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash 554761639, now seen corresponding path program 1 times [2024-09-12 18:39:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:50,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699863147] [2024-09-12 18:39:50,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:50,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:50,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:50,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699863147] [2024-09-12 18:39:50,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699863147] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:50,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316373806] [2024-09-12 18:39:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:50,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:50,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:50,676 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 18:39:50,677 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 18:39:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:50,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:50,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:50,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 18:39:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316373806] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:50,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:50,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:39:50,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698184653] [2024-09-12 18:39:50,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:50,917 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:50,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:50,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:50,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:50,919 INFO L87 Difference]: Start difference. First operand 764 states and 1014 transitions. Second operand has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:39:51,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:51,497 INFO L93 Difference]: Finished difference Result 1051 states and 1417 transitions. [2024-09-12 18:39:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:39:51,498 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) Word has length 107 [2024-09-12 18:39:51,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:51,501 INFO L225 Difference]: With dead ends: 1051 [2024-09-12 18:39:51,502 INFO L226 Difference]: Without dead ends: 1049 [2024-09-12 18:39:51,502 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:39:51,502 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 285 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:51,502 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 287 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-09-12 18:39:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 908. [2024-09-12 18:39:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 730 states have (on average 1.2506849315068493) internal successors, (913), 747 states have internal predecessors, (913), 150 states have call successors, (150), 12 states have call predecessors, (150), 11 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-09-12 18:39:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1211 transitions. [2024-09-12 18:39:51,805 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1211 transitions. Word has length 107 [2024-09-12 18:39:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:51,806 INFO L474 AbstractCegarLoop]: Abstraction has 908 states and 1211 transitions. [2024-09-12 18:39:51,806 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.2) internal successors, (132), 11 states have internal predecessors, (132), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (31), 10 states have call predecessors, (31), 10 states have call successors, (31) [2024-09-12 18:39:51,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1211 transitions. [2024-09-12 18:39:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 18:39:51,807 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:51,807 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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 18:39:51,818 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 18:39:52,008 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:52,009 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:52,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash -712292083, now seen corresponding path program 2 times [2024-09-12 18:39:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:52,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461675357] [2024-09-12 18:39:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 18:39:52,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:52,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461675357] [2024-09-12 18:39:52,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461675357] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:52,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127116755] [2024-09-12 18:39:52,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:52,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:52,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:52,114 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 18:39:52,115 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 18:39:52,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:52,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:52,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:39:52,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 18:39:52,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 66 proven. 8 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-09-12 18:39:52,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127116755] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:52,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:52,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 8] total 15 [2024-09-12 18:39:52,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113367098] [2024-09-12 18:39:52,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:52,432 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:39:52,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:39:52,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:52,433 INFO L87 Difference]: Start difference. First operand 908 states and 1211 transitions. Second operand has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 8 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:39:53,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:53,277 INFO L93 Difference]: Finished difference Result 923 states and 1221 transitions. [2024-09-12 18:39:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:53,277 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 8 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 111 [2024-09-12 18:39:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:53,280 INFO L225 Difference]: With dead ends: 923 [2024-09-12 18:39:53,280 INFO L226 Difference]: Without dead ends: 921 [2024-09-12 18:39:53,281 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:53,281 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:53,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 197 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-09-12 18:39:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 916. [2024-09-12 18:39:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 736 states have (on average 1.2486413043478262) internal successors, (919), 753 states have internal predecessors, (919), 150 states have call successors, (150), 14 states have call predecessors, (150), 13 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-09-12 18:39:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1217 transitions. [2024-09-12 18:39:53,533 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1217 transitions. Word has length 111 [2024-09-12 18:39:53,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:53,533 INFO L474 AbstractCegarLoop]: Abstraction has 916 states and 1217 transitions. [2024-09-12 18:39:53,533 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.533333333333333) internal successors, (98), 14 states have internal predecessors, (98), 8 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-09-12 18:39:53,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:53,533 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1217 transitions. [2024-09-12 18:39:53,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:39:53,534 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:53,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:53,549 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 18:39:53,734 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-09-12 18:39:53,734 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:53,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:53,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1065212877, now seen corresponding path program 1 times [2024-09-12 18:39:53,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:53,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444683121] [2024-09-12 18:39:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:53,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:53,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808672626] [2024-09-12 18:39:53,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:53,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:53,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:53,757 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 18:39:53,758 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 18:39:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:53,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:39:53,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 18:39:54,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:54,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444683121] [2024-09-12 18:39:54,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808672626] [2024-09-12 18:39:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808672626] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:54,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:54,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:54,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35220307] [2024-09-12 18:39:54,378 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:54,378 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:54,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:54,379 INFO L87 Difference]: Start difference. First operand 916 states and 1217 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-09-12 18:39:55,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:55,190 INFO L93 Difference]: Finished difference Result 1000 states and 1328 transitions. [2024-09-12 18:39:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:39:55,190 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 116 [2024-09-12 18:39:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:55,194 INFO L225 Difference]: With dead ends: 1000 [2024-09-12 18:39:55,194 INFO L226 Difference]: Without dead ends: 997 [2024-09-12 18:39:55,194 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:39:55,194 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 215 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:55,195 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 409 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2024-09-12 18:39:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 981. [2024-09-12 18:39:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 789 states have (on average 1.2484157160963245) internal successors, (985), 806 states have internal predecessors, (985), 162 states have call successors, (162), 14 states have call predecessors, (162), 13 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-09-12 18:39:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1307 transitions. [2024-09-12 18:39:55,473 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1307 transitions. Word has length 116 [2024-09-12 18:39:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:55,473 INFO L474 AbstractCegarLoop]: Abstraction has 981 states and 1307 transitions. [2024-09-12 18:39:55,473 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-09-12 18:39:55,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1307 transitions. [2024-09-12 18:39:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:39:55,474 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:55,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:55,486 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:39:55,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:39:55,677 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:55,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:55,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1338139247, now seen corresponding path program 1 times [2024-09-12 18:39:55,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:55,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329270503] [2024-09-12 18:39:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:55,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:55,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510023229] [2024-09-12 18:39:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:55,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:55,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:55,691 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 18:39:55,692 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 18:39:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:55,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:39:55,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 18:39:56,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:56,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:56,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329270503] [2024-09-12 18:39:56,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510023229] [2024-09-12 18:39:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510023229] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:56,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:56,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:56,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289282407] [2024-09-12 18:39:56,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:56,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:56,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:56,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:56,639 INFO L87 Difference]: Start difference. First operand 981 states and 1307 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-09-12 18:39:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:57,405 INFO L93 Difference]: Finished difference Result 1004 states and 1326 transitions. [2024-09-12 18:39:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 117 [2024-09-12 18:39:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:57,409 INFO L225 Difference]: With dead ends: 1004 [2024-09-12 18:39:57,409 INFO L226 Difference]: Without dead ends: 1001 [2024-09-12 18:39:57,409 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:39:57,410 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 248 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:57,410 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 347 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-09-12 18:39:57,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 983. [2024-09-12 18:39:57,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 791 states have (on average 1.2402022756005058) internal successors, (981), 808 states have internal predecessors, (981), 162 states have call successors, (162), 14 states have call predecessors, (162), 13 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-09-12 18:39:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1303 transitions. [2024-09-12 18:39:57,693 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1303 transitions. Word has length 117 [2024-09-12 18:39:57,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:57,693 INFO L474 AbstractCegarLoop]: Abstraction has 983 states and 1303 transitions. [2024-09-12 18:39:57,693 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-09-12 18:39:57,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1303 transitions. [2024-09-12 18:39:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:39:57,694 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:57,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:57,706 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:57,895 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:39:57,895 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:57,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1467356235, now seen corresponding path program 1 times [2024-09-12 18:39:57,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:57,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066004848] [2024-09-12 18:39:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:39:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:39:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:39:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:39:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,998 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:39:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:39:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:39:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:39:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:39:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:39:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:39:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,009 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-09-12 18:39:58,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:58,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066004848] [2024-09-12 18:39:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066004848] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:58,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:58,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:58,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001270307] [2024-09-12 18:39:58,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:58,009 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:58,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:58,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:58,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:58,010 INFO L87 Difference]: Start difference. First operand 983 states and 1303 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:39:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:58,966 INFO L93 Difference]: Finished difference Result 986 states and 1303 transitions. [2024-09-12 18:39:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 118 [2024-09-12 18:39:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:58,969 INFO L225 Difference]: With dead ends: 986 [2024-09-12 18:39:58,969 INFO L226 Difference]: Without dead ends: 985 [2024-09-12 18:39:58,970 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:58,970 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 85 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:58,970 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 236 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-09-12 18:39:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 970. [2024-09-12 18:39:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 779 states have (on average 1.2284980744544287) internal successors, (957), 799 states have internal predecessors, (957), 162 states have call successors, (162), 14 states have call predecessors, (162), 13 states have return successors, (160), 156 states have call predecessors, (160), 160 states have call successors, (160) [2024-09-12 18:39:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1279 transitions. [2024-09-12 18:39:59,252 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1279 transitions. Word has length 118 [2024-09-12 18:39:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:59,253 INFO L474 AbstractCegarLoop]: Abstraction has 970 states and 1279 transitions. [2024-09-12 18:39:59,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:39:59,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1279 transitions. [2024-09-12 18:39:59,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:39:59,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:59,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:39:59,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-09-12 18:39:59,254 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:39:59,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1756597041, now seen corresponding path program 1 times [2024-09-12 18:39:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:59,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895150371] [2024-09-12 18:39:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:59,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308608180] [2024-09-12 18:39:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:59,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:59,268 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 18:39:59,269 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 18:39:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:59,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 18:39:59,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 18:39:59,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895150371] [2024-09-12 18:40:12,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308608180] [2024-09-12 18:40:12,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308608180] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:12,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:12,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:40:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609372328] [2024-09-12 18:40:12,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:12,140 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:40:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:40:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=220, Unknown=3, NotChecked=0, Total=272 [2024-09-12 18:40:12,140 INFO L87 Difference]: Start difference. First operand 970 states and 1279 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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 18:40:12,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:12,961 INFO L93 Difference]: Finished difference Result 985 states and 1287 transitions. [2024-09-12 18:40:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:40:12,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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 119 [2024-09-12 18:40:12,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:12,965 INFO L225 Difference]: With dead ends: 985 [2024-09-12 18:40:12,965 INFO L226 Difference]: Without dead ends: 982 [2024-09-12 18:40:12,966 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=94, Invalid=409, Unknown=3, NotChecked=0, Total=506 [2024-09-12 18:40:12,966 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 177 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:12,966 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 476 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:12,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-09-12 18:40:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 972. [2024-09-12 18:40:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 781 states have (on average 1.2202304737516005) internal successors, (953), 801 states have internal predecessors, (953), 162 states have call successors, (162), 14 states have call predecessors, (162), 13 states have return successors, (160), 156 states have call predecessors, (160), 160 states have call successors, (160) [2024-09-12 18:40:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1275 transitions. [2024-09-12 18:40:13,252 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1275 transitions. Word has length 119 [2024-09-12 18:40:13,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:13,252 INFO L474 AbstractCegarLoop]: Abstraction has 972 states and 1275 transitions. [2024-09-12 18:40:13,253 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 11 states have internal predecessors, (60), 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 18:40:13,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1275 transitions. [2024-09-12 18:40:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:40:13,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:13,253 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] [2024-09-12 18:40:13,266 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:13,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 18:40:13,454 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:13,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1993469081, now seen corresponding path program 2 times [2024-09-12 18:40:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:13,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636085937] [2024-09-12 18:40:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:13,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:13,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268294358] [2024-09-12 18:40:13,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:13,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:13,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:13,467 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 18:40:13,468 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 18:40:13,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:13,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:13,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:40:13,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 18:40:13,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-09-12 18:40:15,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636085937] [2024-09-12 18:40:15,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:15,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268294358] [2024-09-12 18:40:15,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268294358] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:15,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:40:15,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-09-12 18:40:15,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472872595] [2024-09-12 18:40:15,430 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:15,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:40:15,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:40:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:40:15,430 INFO L87 Difference]: Start difference. First operand 972 states and 1275 transitions. Second operand has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 11 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 18:40:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:19,993 INFO L93 Difference]: Finished difference Result 1057 states and 1396 transitions. [2024-09-12 18:40:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:40:19,993 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 11 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 119 [2024-09-12 18:40:19,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:19,996 INFO L225 Difference]: With dead ends: 1057 [2024-09-12 18:40:19,996 INFO L226 Difference]: Without dead ends: 1054 [2024-09-12 18:40:19,997 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:40:19,997 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 622 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:19,997 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 512 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-09-12 18:40:19,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2024-09-12 18:40:20,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 989. [2024-09-12 18:40:20,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 797 states have (on average 1.1844416562107905) internal successors, (944), 815 states have internal predecessors, (944), 165 states have call successors, (165), 14 states have call predecessors, (165), 13 states have return successors, (163), 159 states have call predecessors, (163), 163 states have call successors, (163) [2024-09-12 18:40:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1272 transitions. [2024-09-12 18:40:20,315 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1272 transitions. Word has length 119 [2024-09-12 18:40:20,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:20,316 INFO L474 AbstractCegarLoop]: Abstraction has 989 states and 1272 transitions. [2024-09-12 18:40:20,316 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.166666666666667) internal successors, (111), 19 states have internal predecessors, (111), 11 states have call successors, (27), 1 states have call predecessors, (27), 2 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 18:40:20,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1272 transitions. [2024-09-12 18:40:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:40:20,317 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:20,317 INFO L216 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:40:20,329 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 18:40:20,517 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:20,517 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:20,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2131073635, now seen corresponding path program 1 times [2024-09-12 18:40:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:20,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031353280] [2024-09-12 18:40:20,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:20,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863243501] [2024-09-12 18:40:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:20,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:20,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:20,528 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 18:40:20,529 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 18:40:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:20,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:40:20,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 31 proven. 38 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-09-12 18:40:20,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:22,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031353280] [2024-09-12 18:40:22,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:22,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863243501] [2024-09-12 18:40:22,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863243501] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:22,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:22,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:22,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690320766] [2024-09-12 18:40:22,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:22,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:22,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:22,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:22,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:40:22,097 INFO L87 Difference]: Start difference. First operand 989 states and 1272 transitions. Second operand has 15 states, 15 states have (on average 4.2) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:22,862 INFO L93 Difference]: Finished difference Result 1020 states and 1294 transitions. [2024-09-12 18:40:22,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:40:22,863 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 123 [2024-09-12 18:40:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:22,866 INFO L225 Difference]: With dead ends: 1020 [2024-09-12 18:40:22,866 INFO L226 Difference]: Without dead ends: 1013 [2024-09-12 18:40:22,866 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:40:22,866 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 70 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:22,867 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 438 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-09-12 18:40:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1005. [2024-09-12 18:40:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 808 states have (on average 1.1806930693069306) internal successors, (954), 826 states have internal predecessors, (954), 165 states have call successors, (165), 19 states have call predecessors, (165), 18 states have return successors, (163), 159 states have call predecessors, (163), 163 states have call successors, (163) [2024-09-12 18:40:23,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1282 transitions. [2024-09-12 18:40:23,185 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1282 transitions. Word has length 123 [2024-09-12 18:40:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:23,186 INFO L474 AbstractCegarLoop]: Abstraction has 1005 states and 1282 transitions. [2024-09-12 18:40:23,186 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.2) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:23,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1282 transitions. [2024-09-12 18:40:23,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-09-12 18:40:23,186 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:23,186 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:23,198 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 18:40:23,387 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:40:23,387 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:23,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:23,387 INFO L85 PathProgramCache]: Analyzing trace with hash 974780895, now seen corresponding path program 2 times [2024-09-12 18:40:23,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:23,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931324491] [2024-09-12 18:40:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:23,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:40:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:40:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:40:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:40:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:40:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:40:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 18:40:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:40:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:40:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-09-12 18:40:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 18:40:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:40:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:23,445 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-09-12 18:40:23,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:23,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931324491] [2024-09-12 18:40:23,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931324491] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:40:23,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:40:23,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:40:23,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632051245] [2024-09-12 18:40:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:40:23,446 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:40:23,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:23,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:40:23,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:40:23,447 INFO L87 Difference]: Start difference. First operand 1005 states and 1282 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:40:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:24,025 INFO L93 Difference]: Finished difference Result 1261 states and 1610 transitions. [2024-09-12 18:40:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:40:24,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 126 [2024-09-12 18:40:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:24,028 INFO L225 Difference]: With dead ends: 1261 [2024-09-12 18:40:24,028 INFO L226 Difference]: Without dead ends: 588 [2024-09-12 18:40:24,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:40:24,030 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 31 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:24,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 179 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-09-12 18:40:24,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 564. [2024-09-12 18:40:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 444 states have (on average 1.1756756756756757) internal successors, (522), 458 states have internal predecessors, (522), 90 states have call successors, (90), 17 states have call predecessors, (90), 16 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-09-12 18:40:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 700 transitions. [2024-09-12 18:40:24,208 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 700 transitions. Word has length 126 [2024-09-12 18:40:24,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:24,208 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 700 transitions. [2024-09-12 18:40:24,208 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-09-12 18:40:24,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 700 transitions. [2024-09-12 18:40:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-09-12 18:40:24,209 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:24,209 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, 1, 1, 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 18:40:24,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-09-12 18:40:24,209 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:24,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash 995654807, now seen corresponding path program 2 times [2024-09-12 18:40:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:24,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921415912] [2024-09-12 18:40:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:24,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:24,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881053482] [2024-09-12 18:40:24,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:24,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:24,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:24,225 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 18:40:24,225 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 18:40:24,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:24,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:24,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:40:24,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-09-12 18:40:24,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:24,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:24,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921415912] [2024-09-12 18:40:24,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:24,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881053482] [2024-09-12 18:40:24,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881053482] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:24,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:24,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:40:24,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050110739] [2024-09-12 18:40:24,753 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:24,753 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:40:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:24,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:40:24,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:24,753 INFO L87 Difference]: Start difference. First operand 564 states and 700 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 18:40:25,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:25,527 INFO L93 Difference]: Finished difference Result 653 states and 815 transitions. [2024-09-12 18:40:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:25,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 154 [2024-09-12 18:40:25,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:25,529 INFO L225 Difference]: With dead ends: 653 [2024-09-12 18:40:25,529 INFO L226 Difference]: Without dead ends: 650 [2024-09-12 18:40:25,530 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:40:25,530 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 210 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:25,530 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 601 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:40:25,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-09-12 18:40:25,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 630. [2024-09-12 18:40:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 498 states have (on average 1.178714859437751) internal successors, (587), 512 states have internal predecessors, (587), 102 states have call successors, (102), 17 states have call predecessors, (102), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 18:40:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 789 transitions. [2024-09-12 18:40:25,727 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 789 transitions. Word has length 154 [2024-09-12 18:40:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:25,727 INFO L474 AbstractCegarLoop]: Abstraction has 630 states and 789 transitions. [2024-09-12 18:40:25,727 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 18:40:25,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 789 transitions. [2024-09-12 18:40:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-09-12 18:40:25,728 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:25,728 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, 1, 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 18:40:25,740 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-09-12 18:40:25,928 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:40:25,929 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:25,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash 800528011, now seen corresponding path program 2 times [2024-09-12 18:40:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:25,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544229119] [2024-09-12 18:40:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115761028] [2024-09-12 18:40:25,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:25,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:25,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:25,953 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 18:40:25,954 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 18:40:25,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:25,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:25,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 18:40:26,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-09-12 18:40:26,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:26,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544229119] [2024-09-12 18:40:26,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115761028] [2024-09-12 18:40:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115761028] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:26,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:26,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:40:26,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564727319] [2024-09-12 18:40:26,834 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:26,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:40:26,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:40:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:26,835 INFO L87 Difference]: Start difference. First operand 630 states and 789 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 18:40:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:27,430 INFO L93 Difference]: Finished difference Result 648 states and 804 transitions. [2024-09-12 18:40:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:40:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 155 [2024-09-12 18:40:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:27,433 INFO L225 Difference]: With dead ends: 648 [2024-09-12 18:40:27,433 INFO L226 Difference]: Without dead ends: 645 [2024-09-12 18:40:27,433 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:40:27,433 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 191 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:27,434 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 315 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:40:27,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-09-12 18:40:27,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 631. [2024-09-12 18:40:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 499 states have (on average 1.1663326653306614) internal successors, (582), 513 states have internal predecessors, (582), 102 states have call successors, (102), 17 states have call predecessors, (102), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 18:40:27,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 784 transitions. [2024-09-12 18:40:27,637 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 784 transitions. Word has length 155 [2024-09-12 18:40:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:27,638 INFO L474 AbstractCegarLoop]: Abstraction has 631 states and 784 transitions. [2024-09-12 18:40:27,638 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 18:40:27,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 784 transitions. [2024-09-12 18:40:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-09-12 18:40:27,638 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:27,639 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] [2024-09-12 18:40:27,651 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 18:40:27,839 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:40:27,839 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:27,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 508274765, now seen corresponding path program 2 times [2024-09-12 18:40:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571955604] [2024-09-12 18:40:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:27,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226891584] [2024-09-12 18:40:27,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:27,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:27,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:27,862 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 18:40:27,863 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 18:40:27,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:27,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:27,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:40:27,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-09-12 18:40:28,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:29,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571955604] [2024-09-12 18:40:29,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226891584] [2024-09-12 18:40:29,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226891584] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:29,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:29,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:40:29,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519598650] [2024-09-12 18:40:29,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:29,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:29,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:29,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:29,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:40:29,459 INFO L87 Difference]: Start difference. First operand 631 states and 784 transitions. Second operand has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:40:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:30,286 INFO L93 Difference]: Finished difference Result 647 states and 794 transitions. [2024-09-12 18:40:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 157 [2024-09-12 18:40:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:30,289 INFO L225 Difference]: With dead ends: 647 [2024-09-12 18:40:30,289 INFO L226 Difference]: Without dead ends: 644 [2024-09-12 18:40:30,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=285, Invalid=1047, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 18:40:30,290 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 188 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:30,290 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 576 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:30,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-09-12 18:40:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 633. [2024-09-12 18:40:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 501 states have (on average 1.1536926147704591) internal successors, (578), 515 states have internal predecessors, (578), 102 states have call successors, (102), 17 states have call predecessors, (102), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 18:40:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 780 transitions. [2024-09-12 18:40:30,501 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 780 transitions. Word has length 157 [2024-09-12 18:40:30,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:30,501 INFO L474 AbstractCegarLoop]: Abstraction has 633 states and 780 transitions. [2024-09-12 18:40:30,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.571428571428571) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:40:30,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 780 transitions. [2024-09-12 18:40:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:40:30,502 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:30,502 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, 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 18:40:30,515 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 18:40:30,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 18:40:30,703 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:30,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:30,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1153864889, now seen corresponding path program 2 times [2024-09-12 18:40:30,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:30,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590876036] [2024-09-12 18:40:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:30,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:30,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805036127] [2024-09-12 18:40:30,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:30,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:30,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:30,716 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 18:40:30,717 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 18:40:30,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:30,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:30,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-09-12 18:40:30,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 95 proven. 62 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-09-12 18:40:31,040 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:31,162 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 112 proven. 5 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-09-12 18:40:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590876036] [2024-09-12 18:40:31,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805036127] [2024-09-12 18:40:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805036127] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:31,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:40:31,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 18 [2024-09-12 18:40:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944587553] [2024-09-12 18:40:31,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:31,163 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:40:31,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:31,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:40:31,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:40:31,164 INFO L87 Difference]: Start difference. First operand 633 states and 780 transitions. Second operand has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 9 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 7 states have call predecessors, (27), 8 states have call successors, (27) [2024-09-12 18:40:32,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:32,157 INFO L93 Difference]: Finished difference Result 644 states and 787 transitions. [2024-09-12 18:40:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:40:32,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 9 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 7 states have call predecessors, (27), 8 states have call successors, (27) Word has length 161 [2024-09-12 18:40:32,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:32,160 INFO L225 Difference]: With dead ends: 644 [2024-09-12 18:40:32,160 INFO L226 Difference]: Without dead ends: 636 [2024-09-12 18:40:32,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:40:32,161 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 152 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:32,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 418 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:40:32,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-09-12 18:40:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 626. [2024-09-12 18:40:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 496 states have (on average 1.1491935483870968) internal successors, (570), 508 states have internal predecessors, (570), 101 states have call successors, (101), 17 states have call predecessors, (101), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 18:40:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 771 transitions. [2024-09-12 18:40:32,380 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 771 transitions. Word has length 161 [2024-09-12 18:40:32,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:32,381 INFO L474 AbstractCegarLoop]: Abstraction has 626 states and 771 transitions. [2024-09-12 18:40:32,381 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.0) internal successors, (126), 17 states have internal predecessors, (126), 9 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 7 states have call predecessors, (27), 8 states have call successors, (27) [2024-09-12 18:40:32,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,381 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 771 transitions. [2024-09-12 18:40:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-09-12 18:40:32,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:32,382 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, 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 18:40:32,393 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 18:40:32,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,582 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:32,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash 194950879, now seen corresponding path program 3 times [2024-09-12 18:40:32,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:32,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830539095] [2024-09-12 18:40:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:32,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1171135948] [2024-09-12 18:40:32,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:32,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:32,601 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 18:40:32,603 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 18:40:32,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:40:32,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:32,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:32,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 82 proven. 52 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-09-12 18:40:33,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:40,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:40,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830539095] [2024-09-12 18:40:40,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171135948] [2024-09-12 18:40:40,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171135948] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:40,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:40,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:40:40,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911814526] [2024-09-12 18:40:40,774 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:40,774 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:40:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:40:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=309, Unknown=2, NotChecked=0, Total=380 [2024-09-12 18:40:40,775 INFO L87 Difference]: Start difference. First operand 626 states and 771 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:40:45,299 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 18:40:47,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:47,056 INFO L93 Difference]: Finished difference Result 631 states and 775 transitions. [2024-09-12 18:40:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:40:47,056 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 163 [2024-09-12 18:40:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:47,059 INFO L225 Difference]: With dead ends: 631 [2024-09-12 18:40:47,059 INFO L226 Difference]: Without dead ends: 628 [2024-09-12 18:40:47,059 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=215, Invalid=775, Unknown=2, NotChecked=0, Total=992 [2024-09-12 18:40:47,060 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 133 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 34 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:47,060 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 327 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 770 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2024-09-12 18:40:47,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-09-12 18:40:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 623. [2024-09-12 18:40:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 496 states have (on average 1.127016129032258) internal successors, (559), 505 states have internal predecessors, (559), 101 states have call successors, (101), 17 states have call predecessors, (101), 16 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-09-12 18:40:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 760 transitions. [2024-09-12 18:40:47,347 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 760 transitions. Word has length 163 [2024-09-12 18:40:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:47,348 INFO L474 AbstractCegarLoop]: Abstraction has 623 states and 760 transitions. [2024-09-12 18:40:47,348 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 12 states have internal predecessors, (73), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:40:47,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 760 transitions. [2024-09-12 18:40:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 18:40:47,348 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:47,349 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, 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 18:40:47,361 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 18:40:47,552 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 18:40:47,553 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:47,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:47,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1748510019, now seen corresponding path program 3 times [2024-09-12 18:40:47,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:47,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635997561] [2024-09-12 18:40:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:47,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:47,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063327658] [2024-09-12 18:40:47,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:47,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:47,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:47,570 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 18:40:47,571 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 18:40:47,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:47,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:47,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:40:47,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 115 proven. 52 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-09-12 18:40:48,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:48,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:48,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635997561] [2024-09-12 18:40:48,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:48,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063327658] [2024-09-12 18:40:48,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063327658] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:48,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:48,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:48,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453758969] [2024-09-12 18:40:48,960 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:48,960 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:40:48,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:48,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:40:48,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:48,961 INFO L87 Difference]: Start difference. First operand 623 states and 760 transitions. Second operand has 16 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:40:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:52,117 INFO L93 Difference]: Finished difference Result 947 states and 1192 transitions. [2024-09-12 18:40:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:40:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 164 [2024-09-12 18:40:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:52,121 INFO L225 Difference]: With dead ends: 947 [2024-09-12 18:40:52,121 INFO L226 Difference]: Without dead ends: 938 [2024-09-12 18:40:52,122 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:40:52,122 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 272 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:52,122 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 399 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 18:40:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-09-12 18:40:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 854. [2024-09-12 18:40:52,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 685 states have (on average 1.1357664233576643) internal successors, (778), 694 states have internal predecessors, (778), 143 states have call successors, (143), 17 states have call predecessors, (143), 16 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-09-12 18:40:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1063 transitions. [2024-09-12 18:40:52,568 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1063 transitions. Word has length 164 [2024-09-12 18:40:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:52,569 INFO L474 AbstractCegarLoop]: Abstraction has 854 states and 1063 transitions. [2024-09-12 18:40:52,569 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-09-12 18:40:52,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1063 transitions. [2024-09-12 18:40:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-09-12 18:40:52,570 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:52,570 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, 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 18:40:52,581 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:40:52,770 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:40:52,771 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:52,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:52,771 INFO L85 PathProgramCache]: Analyzing trace with hash 985917701, now seen corresponding path program 3 times [2024-09-12 18:40:52,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:52,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901216869] [2024-09-12 18:40:52,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:52,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:52,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627248671] [2024-09-12 18:40:52,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:52,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:52,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:52,786 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 18:40:52,787 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 18:40:52,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:52,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:52,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 18:40:52,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 66 proven. 70 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-09-12 18:40:53,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:53,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901216869] [2024-09-12 18:40:53,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627248671] [2024-09-12 18:40:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627248671] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:53,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:53,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:40:53,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846079051] [2024-09-12 18:40:53,395 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:53,396 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:40:53,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:53,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:40:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:40:53,396 INFO L87 Difference]: Start difference. First operand 854 states and 1063 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:54,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:54,660 INFO L93 Difference]: Finished difference Result 860 states and 1067 transitions. [2024-09-12 18:40:54,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:40:54,660 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 6 states have call successors, (16) Word has length 166 [2024-09-12 18:40:54,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:54,663 INFO L225 Difference]: With dead ends: 860 [2024-09-12 18:40:54,663 INFO L226 Difference]: Without dead ends: 839 [2024-09-12 18:40:54,663 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:40:54,663 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 166 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:54,664 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 195 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:40:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-09-12 18:40:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 833. [2024-09-12 18:40:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 669 states have (on average 1.0986547085201794) internal successors, (735), 675 states have internal predecessors, (735), 141 states have call successors, (141), 17 states have call predecessors, (141), 16 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-09-12 18:40:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1016 transitions. [2024-09-12 18:40:55,147 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1016 transitions. Word has length 166 [2024-09-12 18:40:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:55,147 INFO L474 AbstractCegarLoop]: Abstraction has 833 states and 1016 transitions. [2024-09-12 18:40:55,147 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 13 states have internal predecessors, (73), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:55,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1016 transitions. [2024-09-12 18:40:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-09-12 18:40:55,149 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:55,149 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, 4, 4, 4, 4, 4, 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] [2024-09-12 18:40:55,161 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 18:40:55,349 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:55,349 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:55,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1053237334, now seen corresponding path program 1 times [2024-09-12 18:40:55,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:55,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945657377] [2024-09-12 18:40:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:55,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:40:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:40:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:40:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:40:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:40:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,427 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:40:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:40:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:40:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:40:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:40:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:40:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:40:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:40:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:40:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:40:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:40:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:40:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:40:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:40:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-09-12 18:40:55,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:55,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945657377] [2024-09-12 18:40:55,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945657377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:55,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35304868] [2024-09-12 18:40:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:55,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:55,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:55,459 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 18:40:55,460 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 18:40:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:55,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:40:55,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-09-12 18:40:55,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-09-12 18:40:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35304868] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:55,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:55,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 18:40:55,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186852687] [2024-09-12 18:40:55,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:55,743 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:40:55,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:55,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:40:55,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:40:55,744 INFO L87 Difference]: Start difference. First operand 833 states and 1016 transitions. Second operand has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 10 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-09-12 18:40:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:56,910 INFO L93 Difference]: Finished difference Result 1619 states and 2022 transitions. [2024-09-12 18:40:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:40:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 10 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 190 [2024-09-12 18:40:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:56,915 INFO L225 Difference]: With dead ends: 1619 [2024-09-12 18:40:56,915 INFO L226 Difference]: Without dead ends: 1618 [2024-09-12 18:40:56,916 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:40:56,916 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 189 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:56,916 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 434 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:40:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-09-12 18:40:57,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1196. [2024-09-12 18:40:57,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 967 states have (on average 1.1220268872802481) internal successors, (1085), 973 states have internal predecessors, (1085), 206 states have call successors, (206), 17 states have call predecessors, (206), 16 states have return successors, (205), 205 states have call predecessors, (205), 205 states have call successors, (205) [2024-09-12 18:40:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1496 transitions. [2024-09-12 18:40:57,644 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1496 transitions. Word has length 190 [2024-09-12 18:40:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:57,644 INFO L474 AbstractCegarLoop]: Abstraction has 1196 states and 1496 transitions. [2024-09-12 18:40:57,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.6) internal successors, (176), 11 states have internal predecessors, (176), 10 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2024-09-12 18:40:57,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1496 transitions. [2024-09-12 18:40:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-09-12 18:40:57,645 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:57,646 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 3, 3, 3, 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 18:40:57,657 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 18:40:57,846 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:40:57,847 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:40:57,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash 580900263, now seen corresponding path program 4 times [2024-09-12 18:40:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960152303] [2024-09-12 18:40:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:57,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548038516] [2024-09-12 18:40:57,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:40:57,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:57,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:57,863 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 18:40:57,865 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 18:40:57,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:40:57,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:57,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:57,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2024-09-12 18:40:58,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:59,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960152303] [2024-09-12 18:40:59,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548038516] [2024-09-12 18:40:59,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548038516] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:59,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:59,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-09-12 18:40:59,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492578469] [2024-09-12 18:40:59,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:59,094 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:40:59,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:59,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:40:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:40:59,095 INFO L87 Difference]: Start difference. First operand 1196 states and 1496 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 10 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2024-09-12 18:41:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:00,935 INFO L93 Difference]: Finished difference Result 1419 states and 1776 transitions. [2024-09-12 18:41:00,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:41:00,935 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 10 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 193 [2024-09-12 18:41:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:00,939 INFO L225 Difference]: With dead ends: 1419 [2024-09-12 18:41:00,940 INFO L226 Difference]: Without dead ends: 1418 [2024-09-12 18:41:00,940 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:41:00,940 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 253 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:00,940 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 609 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:41:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-09-12 18:41:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1206. [2024-09-12 18:41:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 976 states have (on average 1.1209016393442623) internal successors, (1094), 982 states have internal predecessors, (1094), 207 states have call successors, (207), 17 states have call predecessors, (207), 16 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:41:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1507 transitions. [2024-09-12 18:41:01,681 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1507 transitions. Word has length 193 [2024-09-12 18:41:01,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:01,681 INFO L474 AbstractCegarLoop]: Abstraction has 1206 states and 1507 transitions. [2024-09-12 18:41:01,681 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 10 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2024-09-12 18:41:01,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1507 transitions. [2024-09-12 18:41:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-09-12 18:41:01,683 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:01,683 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:01,694 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 18:41:01,883 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:01,883 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:01,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:01,884 INFO L85 PathProgramCache]: Analyzing trace with hash 931569149, now seen corresponding path program 1 times [2024-09-12 18:41:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:01,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359880836] [2024-09-12 18:41:01,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:01,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:41:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:41:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:41:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:41:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:41:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 106 proven. 6 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2024-09-12 18:41:02,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:02,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359880836] [2024-09-12 18:41:02,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359880836] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:02,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272963394] [2024-09-12 18:41:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:02,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:02,070 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 18:41:02,071 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 18:41:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:41:02,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 106 proven. 6 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2024-09-12 18:41:02,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 106 proven. 6 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2024-09-12 18:41:02,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272963394] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:02,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:02,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-09-12 18:41:02,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022897420] [2024-09-12 18:41:02,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:02,756 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:41:02,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:02,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:41:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:41:02,756 INFO L87 Difference]: Start difference. First operand 1206 states and 1507 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-09-12 18:41:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:03,862 INFO L93 Difference]: Finished difference Result 1206 states and 1507 transitions. [2024-09-12 18:41:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:41:03,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 221 [2024-09-12 18:41:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:03,866 INFO L225 Difference]: With dead ends: 1206 [2024-09-12 18:41:03,866 INFO L226 Difference]: Without dead ends: 1205 [2024-09-12 18:41:03,866 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:41:03,867 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:03,867 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 105 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:41:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2024-09-12 18:41:04,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2024-09-12 18:41:04,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 976 states have (on average 1.0870901639344261) internal successors, (1061), 981 states have internal predecessors, (1061), 207 states have call successors, (207), 17 states have call predecessors, (207), 16 states have return successors, (206), 206 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:41:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1474 transitions. [2024-09-12 18:41:04,605 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1474 transitions. Word has length 221 [2024-09-12 18:41:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:04,605 INFO L474 AbstractCegarLoop]: Abstraction has 1205 states and 1474 transitions. [2024-09-12 18:41:04,605 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-09-12 18:41:04,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1474 transitions. [2024-09-12 18:41:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-09-12 18:41:04,607 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:04,607 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-09-12 18:41:04,619 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-09-12 18:41:04,807 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:41:04,809 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:04,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:04,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1401574579, now seen corresponding path program 1 times [2024-09-12 18:41:04,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:04,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301104777] [2024-09-12 18:41:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:04,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,952 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-09-12 18:41:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 18:41:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 18:41:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 18:41:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 18:41:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:41:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:41:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:41:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-09-12 18:41:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:04,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301104777] [2024-09-12 18:41:04,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301104777] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:04,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263764407] [2024-09-12 18:41:04,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:04,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:04,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:04,988 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 18:41:04,989 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 18:41:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:05,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:41:05,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 558 proven. 39 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-09-12 18:41:05,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:05,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 110 proven. 39 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2024-09-12 18:41:05,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263764407] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:05,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:05,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-09-12 18:41:05,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191962178] [2024-09-12 18:41:05,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:05,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:41:05,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:41:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:05,300 INFO L87 Difference]: Start difference. First operand 1205 states and 1474 transitions. Second operand has 15 states, 15 states have (on average 13.066666666666666) internal successors, (196), 15 states have internal predecessors, (196), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-09-12 18:41:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:06,612 INFO L93 Difference]: Finished difference Result 1766 states and 2159 transitions. [2024-09-12 18:41:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:41:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.066666666666666) internal successors, (196), 15 states have internal predecessors, (196), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) Word has length 230 [2024-09-12 18:41:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:06,617 INFO L225 Difference]: With dead ends: 1766 [2024-09-12 18:41:06,617 INFO L226 Difference]: Without dead ends: 1070 [2024-09-12 18:41:06,618 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 505 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:41:06,619 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 222 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:06,619 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 527 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:41:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-09-12 18:41:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1038. [2024-09-12 18:41:07,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 840 states have (on average 1.0892857142857142) internal successors, (915), 845 states have internal predecessors, (915), 177 states have call successors, (177), 16 states have call predecessors, (177), 15 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-09-12 18:41:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1268 transitions. [2024-09-12 18:41:07,255 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1268 transitions. Word has length 230 [2024-09-12 18:41:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:07,255 INFO L474 AbstractCegarLoop]: Abstraction has 1038 states and 1268 transitions. [2024-09-12 18:41:07,255 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.066666666666666) internal successors, (196), 15 states have internal predecessors, (196), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-09-12 18:41:07,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1268 transitions. [2024-09-12 18:41:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-09-12 18:41:07,256 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:07,256 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 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] [2024-09-12 18:41:07,268 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 18:41:07,457 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:41:07,457 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:07,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash -223270589, now seen corresponding path program 2 times [2024-09-12 18:41:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:07,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598660046] [2024-09-12 18:41:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:41:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:41:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-09-12 18:41:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:41:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:41:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:41:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-09-12 18:41:07,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598660046] [2024-09-12 18:41:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598660046] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:07,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536897742] [2024-09-12 18:41:07,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:07,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:07,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:07,626 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 18:41:07,627 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 18:41:07,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:07,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:07,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:41:07,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-09-12 18:41:07,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2024-09-12 18:41:08,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536897742] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:08,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:08,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-09-12 18:41:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541825529] [2024-09-12 18:41:08,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:08,082 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:41:08,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:41:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=292, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:41:08,082 INFO L87 Difference]: Start difference. First operand 1038 states and 1268 transitions. Second operand has 22 states, 21 states have (on average 14.238095238095237) internal successors, (299), 22 states have internal predecessors, (299), 21 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (68), 21 states have call predecessors, (68), 21 states have call successors, (68) [2024-09-12 18:41:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:10,240 INFO L93 Difference]: Finished difference Result 2289 states and 2836 transitions. [2024-09-12 18:41:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:41:10,240 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 14.238095238095237) internal successors, (299), 22 states have internal predecessors, (299), 21 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (68), 21 states have call predecessors, (68), 21 states have call successors, (68) Word has length 230 [2024-09-12 18:41:10,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:10,246 INFO L225 Difference]: With dead ends: 2289 [2024-09-12 18:41:10,246 INFO L226 Difference]: Without dead ends: 2276 [2024-09-12 18:41:10,247 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=564, Invalid=918, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 18:41:10,247 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 1175 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:10,247 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 499 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2024-09-12 18:41:11,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1377. [2024-09-12 18:41:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1116 states have (on average 1.0842293906810037) internal successors, (1210), 1121 states have internal predecessors, (1210), 240 states have call successors, (240), 16 states have call predecessors, (240), 15 states have return successors, (239), 239 states have call predecessors, (239), 239 states have call successors, (239) [2024-09-12 18:41:11,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1689 transitions. [2024-09-12 18:41:11,283 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1689 transitions. Word has length 230 [2024-09-12 18:41:11,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:11,284 INFO L474 AbstractCegarLoop]: Abstraction has 1377 states and 1689 transitions. [2024-09-12 18:41:11,284 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 14.238095238095237) internal successors, (299), 22 states have internal predecessors, (299), 21 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (68), 21 states have call predecessors, (68), 21 states have call successors, (68) [2024-09-12 18:41:11,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1689 transitions. [2024-09-12 18:41:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-09-12 18:41:11,285 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:11,285 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 3, 3, 3, 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 18:41:11,297 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:11,485 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:41:11,486 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:11,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1545363395, now seen corresponding path program 5 times [2024-09-12 18:41:11,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:11,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858995603] [2024-09-12 18:41:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,820 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:41:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,829 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:41:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:41:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,834 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:41:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,837 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:41:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,839 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-09-12 18:41:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 6 proven. 190 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-09-12 18:41:11,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:11,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858995603] [2024-09-12 18:41:11,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858995603] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:11,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124276799] [2024-09-12 18:41:11,843 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:41:11,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:11,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:11,844 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 18:41:11,845 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 18:41:11,908 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:41:11,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:11,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:41:11,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 235 proven. 45 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-09-12 18:41:12,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:12,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 6 proven. 190 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-09-12 18:41:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124276799] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:12,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:12,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 29 [2024-09-12 18:41:12,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190279202] [2024-09-12 18:41:12,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:12,965 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:41:12,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:12,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:41:12,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2024-09-12 18:41:12,966 INFO L87 Difference]: Start difference. First operand 1377 states and 1689 transitions. Second operand has 29 states, 29 states have (on average 10.379310344827585) internal successors, (301), 28 states have internal predecessors, (301), 25 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (75), 26 states have call predecessors, (75), 25 states have call successors, (75) [2024-09-12 18:41:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:15,899 INFO L93 Difference]: Finished difference Result 1976 states and 2422 transitions. [2024-09-12 18:41:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-09-12 18:41:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.379310344827585) internal successors, (301), 28 states have internal predecessors, (301), 25 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (75), 26 states have call predecessors, (75), 25 states have call successors, (75) Word has length 231 [2024-09-12 18:41:15,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:15,902 INFO L225 Difference]: With dead ends: 1976 [2024-09-12 18:41:15,902 INFO L226 Difference]: Without dead ends: 1098 [2024-09-12 18:41:15,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1007, Invalid=3283, Unknown=0, NotChecked=0, Total=4290 [2024-09-12 18:41:15,904 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 701 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:15,905 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 701 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:41:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-09-12 18:41:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 911. [2024-09-12 18:41:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 735 states have (on average 1.05578231292517) internal successors, (776), 739 states have internal predecessors, (776), 156 states have call successors, (156), 16 states have call predecessors, (156), 15 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-09-12 18:41:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1087 transitions. [2024-09-12 18:41:16,699 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1087 transitions. Word has length 231 [2024-09-12 18:41:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:16,699 INFO L474 AbstractCegarLoop]: Abstraction has 911 states and 1087 transitions. [2024-09-12 18:41:16,699 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.379310344827585) internal successors, (301), 28 states have internal predecessors, (301), 25 states have call successors, (74), 2 states have call predecessors, (74), 3 states have return successors, (75), 26 states have call predecessors, (75), 25 states have call successors, (75) [2024-09-12 18:41:16,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1087 transitions. [2024-09-12 18:41:16,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-09-12 18:41:16,701 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:16,701 INFO L216 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:16,713 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 18:41:16,902 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-09-12 18:41:16,902 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:16,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:16,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1962464623, now seen corresponding path program 6 times [2024-09-12 18:41:16,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:16,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097882348] [2024-09-12 18:41:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:16,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:16,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2092455448] [2024-09-12 18:41:16,920 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:41:16,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:16,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:16,926 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 18:41:16,927 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 18:41:16,988 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-09-12 18:41:16,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:16,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:41:16,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 231 proven. 46 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2024-09-12 18:41:17,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097882348] [2024-09-12 18:41:18,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092455448] [2024-09-12 18:41:18,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092455448] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:18,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:18,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:41:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351601782] [2024-09-12 18:41:18,427 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:18,427 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:41:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:41:18,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:41:18,428 INFO L87 Difference]: Start difference. First operand 911 states and 1087 transitions. Second operand has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:41:19,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:19,578 INFO L93 Difference]: Finished difference Result 911 states and 1087 transitions. [2024-09-12 18:41:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:41:19,579 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 287 [2024-09-12 18:41:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:19,582 INFO L225 Difference]: With dead ends: 911 [2024-09-12 18:41:19,582 INFO L226 Difference]: Without dead ends: 845 [2024-09-12 18:41:19,583 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:41:19,583 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 92 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:19,583 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 202 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:41:19,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-09-12 18:41:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 728. [2024-09-12 18:41:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 586 states have (on average 1.023890784982935) internal successors, (600), 587 states have internal predecessors, (600), 125 states have call successors, (125), 16 states have call predecessors, (125), 15 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2024-09-12 18:41:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 849 transitions. [2024-09-12 18:41:20,155 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 849 transitions. Word has length 287 [2024-09-12 18:41:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:20,155 INFO L474 AbstractCegarLoop]: Abstraction has 728 states and 849 transitions. [2024-09-12 18:41:20,155 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.363636363636363) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:41:20,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 849 transitions. [2024-09-12 18:41:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-09-12 18:41:20,157 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:20,157 INFO L216 NwaCegarLoop]: trace histogram [38, 38, 38, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:20,169 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 18:41:20,358 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:20,358 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:20,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:20,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2007116618, now seen corresponding path program 2 times [2024-09-12 18:41:20,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:20,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210566776] [2024-09-12 18:41:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:41:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:41:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:41:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:41:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:41:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:41:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 18:41:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:41:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:41:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:41:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:41:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:41:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:41:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:41:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:41:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 18:41:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 18:41:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:41:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 18:41:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 18:41:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 18:41:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 18:41:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 776 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2024-09-12 18:41:20,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:20,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210566776] [2024-09-12 18:41:20,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210566776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:20,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364293490] [2024-09-12 18:41:20,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:20,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:20,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:20,582 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 18:41:20,583 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 18:41:20,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:20,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:20,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:41:20,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 776 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2024-09-12 18:41:20,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 776 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2024-09-12 18:41:21,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364293490] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:21,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:21,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-09-12 18:41:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641367641] [2024-09-12 18:41:21,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:21,080 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 18:41:21,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 18:41:21,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:41:21,081 INFO L87 Difference]: Start difference. First operand 728 states and 849 transitions. Second operand has 21 states, 20 states have (on average 17.8) internal successors, (356), 21 states have internal predecessors, (356), 20 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (82), 20 states have call predecessors, (82), 20 states have call successors, (82) [2024-09-12 18:41:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:22,276 INFO L93 Difference]: Finished difference Result 1225 states and 1454 transitions. [2024-09-12 18:41:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:41:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.8) internal successors, (356), 21 states have internal predecessors, (356), 20 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (82), 20 states have call predecessors, (82), 20 states have call successors, (82) Word has length 380 [2024-09-12 18:41:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:22,280 INFO L225 Difference]: With dead ends: 1225 [2024-09-12 18:41:22,280 INFO L226 Difference]: Without dead ends: 1224 [2024-09-12 18:41:22,280 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:41:22,281 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 130 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:22,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 435 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:41:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-09-12 18:41:23,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1168. [2024-09-12 18:41:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 946 states have (on average 1.014799154334038) internal successors, (960), 947 states have internal predecessors, (960), 205 states have call successors, (205), 16 states have call predecessors, (205), 15 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:41:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1369 transitions. [2024-09-12 18:41:23,216 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1369 transitions. Word has length 380 [2024-09-12 18:41:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:23,216 INFO L474 AbstractCegarLoop]: Abstraction has 1168 states and 1369 transitions. [2024-09-12 18:41:23,216 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.8) internal successors, (356), 21 states have internal predecessors, (356), 20 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (82), 20 states have call predecessors, (82), 20 states have call successors, (82) [2024-09-12 18:41:23,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1369 transitions. [2024-09-12 18:41:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-09-12 18:41:23,219 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:23,219 INFO L216 NwaCegarLoop]: trace histogram [48, 48, 48, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:23,231 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 18:41:23,419 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:23,420 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:23,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash 817879163, now seen corresponding path program 3 times [2024-09-12 18:41:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:23,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887605339] [2024-09-12 18:41:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-09-12 18:41:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-09-12 18:41:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-09-12 18:41:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-09-12 18:41:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-09-12 18:41:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-09-12 18:41:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:41:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-09-12 18:41:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-09-12 18:41:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:41:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:41:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-09-12 18:41:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:41:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-09-12 18:41:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-09-12 18:41:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-09-12 18:41:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-09-12 18:41:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-09-12 18:41:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-09-12 18:41:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2024-09-12 18:41:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2024-09-12 18:41:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-09-12 18:41:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 18:41:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-09-12 18:41:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-09-12 18:41:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 18:41:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2024-09-12 18:41:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2024-09-12 18:41:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2024-09-12 18:41:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2024-09-12 18:41:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2024-09-12 18:41:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 560 proven. 157 refuted. 0 times theorem prover too weak. 4795 trivial. 0 not checked. [2024-09-12 18:41:23,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:23,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887605339] [2024-09-12 18:41:23,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887605339] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:23,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630897589] [2024-09-12 18:41:23,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:41:23,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:23,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:23,642 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 18:41:23,643 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 18:41:23,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:41:23,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:23,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-09-12 18:41:23,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 1367 proven. 118 refuted. 0 times theorem prover too weak. 4027 trivial. 0 not checked. [2024-09-12 18:41:26,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:26,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630897589] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:26,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:41:26,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 22] total 30 [2024-09-12 18:41:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440721139] [2024-09-12 18:41:26,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:26,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:41:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:41:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1097, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:41:26,642 INFO L87 Difference]: Start difference. First operand 1168 states and 1369 transitions. Second operand has 30 states, 28 states have (on average 9.785714285714286) internal successors, (274), 27 states have internal predecessors, (274), 18 states have call successors, (61), 1 states have call predecessors, (61), 3 states have return successors, (62), 18 states have call predecessors, (62), 18 states have call successors, (62) [2024-09-12 18:41:29,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:29,030 INFO L93 Difference]: Finished difference Result 1655 states and 1933 transitions. [2024-09-12 18:41:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:41:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 9.785714285714286) internal successors, (274), 27 states have internal predecessors, (274), 18 states have call successors, (61), 1 states have call predecessors, (61), 3 states have return successors, (62), 18 states have call predecessors, (62), 18 states have call successors, (62) Word has length 476 [2024-09-12 18:41:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:29,034 INFO L225 Difference]: With dead ends: 1655 [2024-09-12 18:41:29,034 INFO L226 Difference]: Without dead ends: 924 [2024-09-12 18:41:29,036 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=410, Invalid=2242, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 18:41:29,036 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 183 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:29,036 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 715 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:41:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-09-12 18:41:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 923. [2024-09-12 18:41:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 746 states have (on average 1.0040214477211795) internal successors, (749), 746 states have internal predecessors, (749), 161 states have call successors, (161), 16 states have call predecessors, (161), 15 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-09-12 18:41:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1070 transitions. [2024-09-12 18:41:29,760 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1070 transitions. Word has length 476 [2024-09-12 18:41:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:29,760 INFO L474 AbstractCegarLoop]: Abstraction has 923 states and 1070 transitions. [2024-09-12 18:41:29,760 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 9.785714285714286) internal successors, (274), 27 states have internal predecessors, (274), 18 states have call successors, (61), 1 states have call predecessors, (61), 3 states have return successors, (62), 18 states have call predecessors, (62), 18 states have call successors, (62) [2024-09-12 18:41:29,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1070 transitions. [2024-09-12 18:41:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2024-09-12 18:41:29,764 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:29,764 INFO L216 NwaCegarLoop]: trace histogram [78, 78, 78, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:29,775 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 18:41:29,964 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:41:29,964 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-09-12 18:41:29,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1062430770, now seen corresponding path program 3 times [2024-09-12 18:41:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:29,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130495394] [2024-09-12 18:41:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:41:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:41:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-12 18:41:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:41:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-09-12 18:41:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,551 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-09-12 18:41:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 18:41:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 18:41:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-09-12 18:41:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-09-12 18:41:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-09-12 18:41:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 18:41:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 18:41:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-09-12 18:41:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-09-12 18:41:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 18:41:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-09-12 18:41:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-09-12 18:41:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-09-12 18:41:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-09-12 18:41:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-09-12 18:41:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 18:41:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-09-12 18:41:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 18:41:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-09-12 18:41:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-09-12 18:41:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-09-12 18:41:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-09-12 18:41:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-09-12 18:41:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-09-12 18:41:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-09-12 18:41:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-09-12 18:41:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-09-12 18:41:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-09-12 18:41:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-09-12 18:41:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,582 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-09-12 18:41:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-09-12 18:41:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-09-12 18:41:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-09-12 18:41:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-09-12 18:41:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2024-09-12 18:41:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-09-12 18:41:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2024-09-12 18:41:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2024-09-12 18:41:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2024-09-12 18:41:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2024-09-12 18:41:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2024-09-12 18:41:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2024-09-12 18:41:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2024-09-12 18:41:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 475 [2024-09-12 18:41:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,597 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2024-09-12 18:41:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2024-09-12 18:41:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2024-09-12 18:41:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-09-12 18:41:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-09-12 18:41:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2024-09-12 18:41:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-09-12 18:41:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2024-09-12 18:41:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2024-09-12 18:41:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2024-09-12 18:41:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2024-09-12 18:41:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-09-12 18:41:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2024-09-12 18:41:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2024-09-12 18:41:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2024-09-12 18:41:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 627 [2024-09-12 18:41:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2024-09-12 18:41:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2024-09-12 18:41:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 660 [2024-09-12 18:41:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2024-09-12 18:41:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 677 [2024-09-12 18:41:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2024-09-12 18:41:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2024-09-12 18:41:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2024-09-12 18:41:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 715 [2024-09-12 18:41:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2024-09-12 18:41:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 736 [2024-09-12 18:41:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 741 [2024-09-12 18:41:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 753 [2024-09-12 18:41:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 3726 refuted. 0 times theorem prover too weak. 12024 trivial. 0 not checked. [2024-09-12 18:41:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:30,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130495394] [2024-09-12 18:41:30,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130495394] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:30,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775690537] [2024-09-12 18:41:30,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:41:30,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:30,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:30,629 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 18:41:30,632 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 18:41:30,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:41:30,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:30,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:41:30,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 15690 trivial. 0 not checked. [2024-09-12 18:41:31,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 15690 trivial. 0 not checked. [2024-09-12 18:41:31,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775690537] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:31,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:31,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 5, 5] total 26 [2024-09-12 18:41:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220177695] [2024-09-12 18:41:31,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:31,624 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 18:41:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:31,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 18:41:31,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=438, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:41:31,625 INFO L87 Difference]: Start difference. First operand 923 states and 1070 transitions. Second operand has 27 states, 26 states have (on average 15.23076923076923) internal successors, (396), 27 states have internal predecessors, (396), 23 states have call successors, (91), 1 states have call predecessors, (91), 2 states have return successors, (91), 23 states have call predecessors, (91), 23 states have call successors, (91) [2024-09-12 18:41:32,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:32,979 INFO L93 Difference]: Finished difference Result 1005 states and 1168 transitions. [2024-09-12 18:41:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:41:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 15.23076923076923) internal successors, (396), 27 states have internal predecessors, (396), 23 states have call successors, (91), 1 states have call predecessors, (91), 2 states have return successors, (91), 23 states have call predecessors, (91), 23 states have call successors, (91) Word has length 760 [2024-09-12 18:41:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:32,982 INFO L225 Difference]: With dead ends: 1005 [2024-09-12 18:41:32,982 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 18:41:32,984 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1725 GetRequests, 1679 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=744, Invalid=1418, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:41:32,984 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 70 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:32,984 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 333 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:41:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 18:41:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 18:41:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 18:41:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 18:41:32,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 760 [2024-09-12 18:41:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:32,985 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 18:41:32,985 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 15.23076923076923) internal successors, (396), 27 states have internal predecessors, (396), 23 states have call successors, (91), 1 states have call predecessors, (91), 2 states have return successors, (91), 23 states have call predecessors, (91), 23 states have call successors, (91) [2024-09-12 18:41:32,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 18:41:32,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 18:41:32,987 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-09-12 18:41:32,988 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-09-12 18:41:32,989 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-09-12 18:41:32,990 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 31 remaining) [2024-09-12 18:41:33,001 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 18:41:33,193 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:33,196 INFO L408 BasicCegarLoop]: Path program histogram: [6, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:33,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 18:42:16,346 WARN L293 SmtUtils]: Spent 24.50s on a formula simplification. DAG size of input: 408 DAG size of output: 372 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)