./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-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/egcd-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 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 --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 18:49:36,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:49:36,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:49:36,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:49:36,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:49:36,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:49:36,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:49:36,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:49:36,527 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:49:36,527 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:49:36,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:49:36,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:49:36,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:49:36,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:49:36,529 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:49:36,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:49:36,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:49:36,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:49:36,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:49:36,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:49:36,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:49:36,536 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:49:36,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:49:36,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:49:36,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:49:36,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:49:36,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:49:36,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:49:36,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:49:36,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:49:36,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:49:36,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:49:36,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:49:36,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:49:36,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:49:36,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:49:36,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9847fe213bf8df5d23c53d2bc8b53fb384c85820b87c09591484702dabefc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:49:36,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:49:36,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:49:36,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:49:36,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:49:36,820 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:49:36,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2024-09-12 18:49:38,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:49:38,194 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:49:38,194 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound10.c [2024-09-12 18:49:38,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/46ec4ad00/87f726a3777341ed993ef91398b71456/FLAG14bf326e1 [2024-09-12 18:49:38,210 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/46ec4ad00/87f726a3777341ed993ef91398b71456 [2024-09-12 18:49:38,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:49:38,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:49:38,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:49:38,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:49:38,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:49:38,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bf798f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38, skipping insertion in model container [2024-09-12 18:49:38,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:49:38,350 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/egcd-ll_valuebound10.c[489,502] [2024-09-12 18:49:38,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:49:38,381 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:49:38,390 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/egcd-ll_valuebound10.c[489,502] [2024-09-12 18:49:38,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:49:38,417 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:49:38,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38 WrapperNode [2024-09-12 18:49:38,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:49:38,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:49:38,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:49:38,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:49:38,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,432 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:49:38,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:49:38,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:49:38,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:49:38,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:49:38,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,462 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 18:49:38,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:49:38,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:49:38,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:49:38,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:49:38,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (1/1) ... [2024-09-12 18:49:38,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:49:38,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:38,513 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 18:49:38,515 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 18:49:38,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:49:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:49:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:49:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:49:38,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:49:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:49:38,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:49:38,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:49:38,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:49:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:49:38,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:49:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:49:38,604 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:49:38,605 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:49:39,144 INFO L? ?]: Removed 156 outVars from TransFormulas that were not future-live. [2024-09-12 18:49:39,144 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:49:39,167 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:49:39,168 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:49:39,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:49:39 BoogieIcfgContainer [2024-09-12 18:49:39,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:49:39,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:49:39,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:49:39,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:49:39,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:49:38" (1/3) ... [2024-09-12 18:49:39,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ed447c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:49:39, skipping insertion in model container [2024-09-12 18:49:39,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:49:38" (2/3) ... [2024-09-12 18:49:39,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ed447c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:49:39, skipping insertion in model container [2024-09-12 18:49:39,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:49:39" (3/3) ... [2024-09-12 18:49:39,176 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound10.c [2024-09-12 18:49:39,188 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:49:39,188 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-09-12 18:49:39,240 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:49:39,245 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;@ca5917d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:49:39,246 INFO L337 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-09-12 18:49:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 72 states have (on average 1.875) internal successors, (135), 129 states have internal predecessors, (135), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-09-12 18:49:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:49:39,255 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:39,256 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:39,257 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:39,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash -171271695, now seen corresponding path program 1 times [2024-09-12 18:49:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:39,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692178921] [2024-09-12 18:49:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:39,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:39,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:39,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692178921] [2024-09-12 18:49:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692178921] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:39,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:39,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:39,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116951974] [2024-09-12 18:49:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:39,401 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:49:39,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:39,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:49:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:49:39,419 INFO L87 Difference]: Start difference. First operand has 147 states, 72 states have (on average 1.875) internal successors, (135), 129 states have internal predecessors, (135), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) 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, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:49:39,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:39,465 INFO L93 Difference]: Finished difference Result 288 states and 326 transitions. [2024-09-12 18:49:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:49:39,468 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, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-09-12 18:49:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:39,476 INFO L225 Difference]: With dead ends: 288 [2024-09-12 18:49:39,476 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:49:39,479 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 18:49:39,481 INFO L434 NwaCegarLoop]: 155 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, 155 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 18:49:39,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:49:39,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:49:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-09-12 18:49:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 70 states have (on average 1.8428571428571427) internal successors, (129), 127 states have internal predecessors, (129), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 18:49:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 153 transitions. [2024-09-12 18:49:39,515 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 153 transitions. Word has length 29 [2024-09-12 18:49:39,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:39,516 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 153 transitions. [2024-09-12 18:49:39,516 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, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:49:39,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 153 transitions. [2024-09-12 18:49:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:49:39,518 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:39,518 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:39,518 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:49:39,518 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:39,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:39,519 INFO L85 PathProgramCache]: Analyzing trace with hash -215164884, now seen corresponding path program 1 times [2024-09-12 18:49:39,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:39,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928299788] [2024-09-12 18:49:39,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:39,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:39,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241360511] [2024-09-12 18:49:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:39,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:39,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:39,569 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 18:49:39,571 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:49:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:39,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:49:39,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:39,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:39,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928299788] [2024-09-12 18:49:39,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241360511] [2024-09-12 18:49:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241360511] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:39,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:39,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:39,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166017156] [2024-09-12 18:49:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:39,665 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:39,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:39,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:39,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:39,666 INFO L87 Difference]: Start difference. First operand 143 states and 153 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:39,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:39,969 INFO L93 Difference]: Finished difference Result 229 states and 279 transitions. [2024-09-12 18:49:39,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:39,970 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 29 [2024-09-12 18:49:39,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:39,972 INFO L225 Difference]: With dead ends: 229 [2024-09-12 18:49:39,974 INFO L226 Difference]: Without dead ends: 225 [2024-09-12 18:49:39,974 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 18:49:39,976 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 74 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:39,976 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 158 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-09-12 18:49:39,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 182. [2024-09-12 18:49:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 104 states have (on average 1.8461538461538463) internal successors, (192), 161 states have internal predecessors, (192), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:49:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 226 transitions. [2024-09-12 18:49:39,997 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 226 transitions. Word has length 29 [2024-09-12 18:49:39,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:39,997 INFO L474 AbstractCegarLoop]: Abstraction has 182 states and 226 transitions. [2024-09-12 18:49:39,997 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:39,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 226 transitions. [2024-09-12 18:49:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:49:39,998 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:39,998 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:40,011 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:40,199 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 18:49:40,199 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:40,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash -615021330, now seen corresponding path program 1 times [2024-09-12 18:49:40,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:40,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401983991] [2024-09-12 18:49:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:40,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:40,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616704427] [2024-09-12 18:49:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:40,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:40,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:40,231 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 18:49:40,232 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 18:49:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:40,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:49:40,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:40,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:40,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:40,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401983991] [2024-09-12 18:49:40,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:40,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616704427] [2024-09-12 18:49:40,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616704427] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:40,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:40,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:40,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258782363] [2024-09-12 18:49:40,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:40,288 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:40,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:40,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:40,297 INFO L87 Difference]: Start difference. First operand 182 states and 226 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:40,591 INFO L93 Difference]: Finished difference Result 288 states and 356 transitions. [2024-09-12 18:49:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 31 [2024-09-12 18:49:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:40,593 INFO L225 Difference]: With dead ends: 288 [2024-09-12 18:49:40,594 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:49:40,594 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 18:49:40,595 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 89 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:40,595 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 216 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:49:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 226. [2024-09-12 18:49:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 143 states have (on average 1.7692307692307692) internal successors, (253), 200 states have internal predecessors, (253), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 18:49:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 297 transitions. [2024-09-12 18:49:40,616 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 297 transitions. Word has length 31 [2024-09-12 18:49:40,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:40,616 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 297 transitions. [2024-09-12 18:49:40,616 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:40,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:40,617 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 297 transitions. [2024-09-12 18:49:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:49:40,617 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:40,618 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:40,629 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 18:49:40,821 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 18:49:40,822 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:40,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1669990832, now seen corresponding path program 1 times [2024-09-12 18:49:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126030249] [2024-09-12 18:49:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:40,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948565654] [2024-09-12 18:49:40,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:40,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:40,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:40,850 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 18:49:40,852 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 18:49:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:40,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:49:40,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:40,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:40,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:40,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126030249] [2024-09-12 18:49:40,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:40,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948565654] [2024-09-12 18:49:40,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948565654] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:40,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:40,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:40,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148192060] [2024-09-12 18:49:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:40,947 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:40,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:40,948 INFO L87 Difference]: Start difference. First operand 226 states and 297 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:41,242 INFO L93 Difference]: Finished difference Result 268 states and 336 transitions. [2024-09-12 18:49:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:41,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2024-09-12 18:49:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:41,243 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:49:41,243 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 18:49:41,244 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 18:49:41,244 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 62 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:41,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 142 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 18:49:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 193. [2024-09-12 18:49:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 115 states have (on average 1.7217391304347827) internal successors, (198), 172 states have internal predecessors, (198), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 18:49:41,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 232 transitions. [2024-09-12 18:49:41,258 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 232 transitions. Word has length 33 [2024-09-12 18:49:41,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:41,258 INFO L474 AbstractCegarLoop]: Abstraction has 193 states and 232 transitions. [2024-09-12 18:49:41,258 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:41,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:41,259 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 232 transitions. [2024-09-12 18:49:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:49:41,259 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:41,259 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:41,271 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 18:49:41,463 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 18:49:41,464 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:41,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash -823621886, now seen corresponding path program 1 times [2024-09-12 18:49:41,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:41,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072597396] [2024-09-12 18:49:41,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:41,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:41,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748278051] [2024-09-12 18:49:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:41,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:41,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:41,491 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 18:49:41,493 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 18:49:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:41,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:49:41,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:41,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:41,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:41,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:41,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072597396] [2024-09-12 18:49:41,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:41,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748278051] [2024-09-12 18:49:41,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748278051] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:41,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:41,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:49:41,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262830387] [2024-09-12 18:49:41,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:41,604 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:41,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:41,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:41,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:41,604 INFO L87 Difference]: Start difference. First operand 193 states and 232 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:41,904 INFO L93 Difference]: Finished difference Result 223 states and 264 transitions. [2024-09-12 18:49:41,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:49:41,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 38 [2024-09-12 18:49:41,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:41,907 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:49:41,907 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:49:41,907 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 18:49:41,908 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 63 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:41,910 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 289 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:49:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:49:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 118 states have (on average 1.7033898305084745) internal successors, (201), 176 states have internal predecessors, (201), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:41,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 237 transitions. [2024-09-12 18:49:41,929 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 237 transitions. Word has length 38 [2024-09-12 18:49:41,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:41,929 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 237 transitions. [2024-09-12 18:49:41,930 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:49:41,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 237 transitions. [2024-09-12 18:49:41,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:49:41,931 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:41,931 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:41,945 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 18:49:42,132 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 18:49:42,132 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:42,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:42,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1836186766, now seen corresponding path program 1 times [2024-09-12 18:49:42,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:42,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606938971] [2024-09-12 18:49:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:42,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:42,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [659992589] [2024-09-12 18:49:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:42,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:42,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:42,161 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 18:49:42,162 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 18:49:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:42,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:42,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:42,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:42,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:42,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606938971] [2024-09-12 18:49:42,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:42,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659992589] [2024-09-12 18:49:42,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659992589] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260718804] [2024-09-12 18:49:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:42,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:42,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:42,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:42,259 INFO L87 Difference]: Start difference. First operand 198 states and 237 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:49:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:42,653 INFO L93 Difference]: Finished difference Result 223 states and 262 transitions. [2024-09-12 18:49:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:42,653 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 42 [2024-09-12 18:49:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:42,655 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:49:42,655 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:49:42,655 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 18:49:42,655 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 161 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:42,656 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 187 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:49:42,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:49:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:49:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 118 states have (on average 1.6864406779661016) internal successors, (199), 176 states have internal predecessors, (199), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:42,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 235 transitions. [2024-09-12 18:49:42,670 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 235 transitions. Word has length 42 [2024-09-12 18:49:42,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:42,670 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 235 transitions. [2024-09-12 18:49:42,670 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:49:42,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:42,671 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 235 transitions. [2024-09-12 18:49:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:49:42,671 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:42,671 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:42,684 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:42,872 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 18:49:42,873 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:42,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:42,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1087214819, now seen corresponding path program 1 times [2024-09-12 18:49:42,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:42,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020892219] [2024-09-12 18:49:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:42,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:42,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325269233] [2024-09-12 18:49:42,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:42,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:42,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:42,887 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 18:49:42,888 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 18:49:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:42,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:42,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:42,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:42,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020892219] [2024-09-12 18:49:42,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325269233] [2024-09-12 18:49:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325269233] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:42,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:42,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717783738] [2024-09-12 18:49:42,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:42,984 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:42,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:42,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:42,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:42,984 INFO L87 Difference]: Start difference. First operand 198 states and 235 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:49:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:43,245 INFO L93 Difference]: Finished difference Result 223 states and 260 transitions. [2024-09-12 18:49:43,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:43,246 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2024-09-12 18:49:43,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:43,247 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:49:43,247 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:49:43,248 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 18:49:43,249 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 218 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:43,249 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 165 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:49:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:49:43,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:49:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 118 states have (on average 1.6694915254237288) internal successors, (197), 176 states have internal predecessors, (197), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:43,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2024-09-12 18:49:43,266 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 43 [2024-09-12 18:49:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:43,267 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2024-09-12 18:49:43,267 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), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:49:43,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2024-09-12 18:49:43,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:49:43,268 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:43,268 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:43,281 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 18:49:43,469 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 18:49:43,469 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:43,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash 656079060, now seen corresponding path program 1 times [2024-09-12 18:49:43,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:43,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580459710] [2024-09-12 18:49:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:43,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:43,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628246438] [2024-09-12 18:49:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:43,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:43,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:43,491 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 18:49:43,493 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 18:49:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:43,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:43,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:43,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:43,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580459710] [2024-09-12 18:49:43,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628246438] [2024-09-12 18:49:43,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628246438] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:43,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:43,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:43,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96008706] [2024-09-12 18:49:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:43,560 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:43,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:43,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:43,560 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 18:49:44,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:44,219 INFO L93 Difference]: Finished difference Result 250 states and 274 transitions. [2024-09-12 18:49:44,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:44,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 44 [2024-09-12 18:49:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:44,221 INFO L225 Difference]: With dead ends: 250 [2024-09-12 18:49:44,221 INFO L226 Difference]: Without dead ends: 248 [2024-09-12 18:49:44,222 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 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 18:49:44,222 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 139 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:44,222 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 196 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:49:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-09-12 18:49:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 198. [2024-09-12 18:49:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 118 states have (on average 1.652542372881356) internal successors, (195), 176 states have internal predecessors, (195), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 231 transitions. [2024-09-12 18:49:44,245 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 231 transitions. Word has length 44 [2024-09-12 18:49:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:44,245 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 231 transitions. [2024-09-12 18:49:44,245 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 18:49:44,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:44,246 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 231 transitions. [2024-09-12 18:49:44,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:49:44,246 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:44,246 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:44,259 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:44,447 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 18:49:44,447 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:44,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:44,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1136385537, now seen corresponding path program 1 times [2024-09-12 18:49:44,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:44,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881206178] [2024-09-12 18:49:44,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:44,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:44,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78434630] [2024-09-12 18:49:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:44,460 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 18:49:44,464 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 18:49:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:44,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:44,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:44,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:44,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:44,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881206178] [2024-09-12 18:49:44,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:44,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78434630] [2024-09-12 18:49:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78434630] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:44,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146422941] [2024-09-12 18:49:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:44,625 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:44,626 INFO L87 Difference]: Start difference. First operand 198 states and 231 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 18:49:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:45,877 INFO L93 Difference]: Finished difference Result 251 states and 273 transitions. [2024-09-12 18:49:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:45,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 45 [2024-09-12 18:49:45,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:45,879 INFO L225 Difference]: With dead ends: 251 [2024-09-12 18:49:45,879 INFO L226 Difference]: Without dead ends: 249 [2024-09-12 18:49:45,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:45,879 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 82 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:45,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 256 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:49:45,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-09-12 18:49:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 198. [2024-09-12 18:49:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 118 states have (on average 1.6355932203389831) internal successors, (193), 176 states have internal predecessors, (193), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 229 transitions. [2024-09-12 18:49:45,895 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 229 transitions. Word has length 45 [2024-09-12 18:49:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:45,895 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 229 transitions. [2024-09-12 18:49:45,895 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 18:49:45,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 229 transitions. [2024-09-12 18:49:45,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:49:45,896 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:45,896 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:45,908 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:49:46,100 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 18:49:46,101 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:46,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash -642021207, now seen corresponding path program 1 times [2024-09-12 18:49:46,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:46,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320177501] [2024-09-12 18:49:46,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:46,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:46,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535348891] [2024-09-12 18:49:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:46,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:46,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:46,116 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 18:49:46,124 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 18:49:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:46,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:49:46,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:49:46,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320177501] [2024-09-12 18:49:46,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:46,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535348891] [2024-09-12 18:49:46,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535348891] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:46,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:46,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:49:46,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227569632] [2024-09-12 18:49:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:46,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:46,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:46,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:46,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:46,223 INFO L87 Difference]: Start difference. First operand 198 states and 229 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:49:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:46,819 INFO L93 Difference]: Finished difference Result 219 states and 255 transitions. [2024-09-12 18:49:46,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:49:46,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-09-12 18:49:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:46,821 INFO L225 Difference]: With dead ends: 219 [2024-09-12 18:49:46,821 INFO L226 Difference]: Without dead ends: 217 [2024-09-12 18:49:46,821 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 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 18:49:46,821 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 50 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:46,821 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 271 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:49:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-12 18:49:46,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2024-09-12 18:49:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 121 states have (on average 1.6198347107438016) internal successors, (196), 179 states have internal predecessors, (196), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 18:49:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 232 transitions. [2024-09-12 18:49:46,844 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 232 transitions. Word has length 49 [2024-09-12 18:49:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:46,844 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 232 transitions. [2024-09-12 18:49:46,844 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:49:46,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 232 transitions. [2024-09-12 18:49:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:49:46,845 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:46,845 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:46,859 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 18:49:47,045 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 18:49:47,045 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:47,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1493070402, now seen corresponding path program 1 times [2024-09-12 18:49:47,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:47,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914462036] [2024-09-12 18:49:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594214908] [2024-09-12 18:49:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:47,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:47,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:47,061 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 18:49:47,062 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 18:49:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:47,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:49:47,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:47,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:47,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:47,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914462036] [2024-09-12 18:49:47,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:47,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594214908] [2024-09-12 18:49:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594214908] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:47,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:47,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:47,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233338540] [2024-09-12 18:49:47,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:47,109 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:47,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:47,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:47,110 INFO L87 Difference]: Start difference. First operand 202 states and 232 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:47,442 INFO L93 Difference]: Finished difference Result 353 states and 429 transitions. [2024-09-12 18:49:47,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2024-09-12 18:49:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:47,445 INFO L225 Difference]: With dead ends: 353 [2024-09-12 18:49:47,445 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:49:47,445 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 18:49:47,446 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 75 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:47,446 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 214 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:49:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 300. [2024-09-12 18:49:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 207 states have (on average 1.5942028985507246) internal successors, (330), 266 states have internal predecessors, (330), 31 states have call successors, (31), 6 states have call predecessors, (31), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:49:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 390 transitions. [2024-09-12 18:49:47,476 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 390 transitions. Word has length 51 [2024-09-12 18:49:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:47,476 INFO L474 AbstractCegarLoop]: Abstraction has 300 states and 390 transitions. [2024-09-12 18:49:47,477 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:47,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 390 transitions. [2024-09-12 18:49:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:49:47,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:47,477 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:47,489 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:47,678 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 18:49:47,678 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:47,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash 321582276, now seen corresponding path program 1 times [2024-09-12 18:49:47,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:47,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156567643] [2024-09-12 18:49:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:47,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120801146] [2024-09-12 18:49:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:47,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:47,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:47,696 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 18:49:47,698 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 18:49:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:47,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:47,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:47,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:47,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156567643] [2024-09-12 18:49:47,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:47,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120801146] [2024-09-12 18:49:47,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120801146] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:47,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:47,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721998266] [2024-09-12 18:49:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:47,777 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:47,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:47,777 INFO L87 Difference]: Start difference. First operand 300 states and 390 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:49:48,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:48,100 INFO L93 Difference]: Finished difference Result 335 states and 425 transitions. [2024-09-12 18:49:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:48,100 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 53 [2024-09-12 18:49:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:48,102 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:49:48,102 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:49:48,102 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 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 18:49:48,103 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 171 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:48,103 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 178 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:49:48,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 301. [2024-09-12 18:49:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 208 states have (on average 1.5817307692307692) internal successors, (329), 267 states have internal predecessors, (329), 31 states have call successors, (31), 6 states have call predecessors, (31), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:49:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 389 transitions. [2024-09-12 18:49:48,129 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 389 transitions. Word has length 53 [2024-09-12 18:49:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:48,130 INFO L474 AbstractCegarLoop]: Abstraction has 301 states and 389 transitions. [2024-09-12 18:49:48,130 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:49:48,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 389 transitions. [2024-09-12 18:49:48,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:49:48,130 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:48,130 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:48,143 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:48,331 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:48,331 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:48,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1379116056, now seen corresponding path program 1 times [2024-09-12 18:49:48,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:48,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141910063] [2024-09-12 18:49:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:48,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:48,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024079330] [2024-09-12 18:49:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:48,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:48,347 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 18:49:48,348 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 18:49:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:48,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:48,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:48,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:48,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:48,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141910063] [2024-09-12 18:49:48,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:48,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024079330] [2024-09-12 18:49:48,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024079330] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:48,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:48,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:48,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253072482] [2024-09-12 18:49:48,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:48,428 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:48,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:48,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:48,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:48,428 INFO L87 Difference]: Start difference. First operand 301 states and 389 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:49:48,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:48,669 INFO L93 Difference]: Finished difference Result 335 states and 422 transitions. [2024-09-12 18:49:48,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:48,670 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2024-09-12 18:49:48,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:48,671 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:49:48,671 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:49:48,672 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 18:49:48,672 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 170 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:48,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 178 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:49:48,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:49:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 302. [2024-09-12 18:49:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 209 states have (on average 1.569377990430622) internal successors, (328), 268 states have internal predecessors, (328), 31 states have call successors, (31), 6 states have call predecessors, (31), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:49:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 388 transitions. [2024-09-12 18:49:48,709 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 388 transitions. Word has length 54 [2024-09-12 18:49:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:48,709 INFO L474 AbstractCegarLoop]: Abstraction has 302 states and 388 transitions. [2024-09-12 18:49:48,709 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:49:48,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 388 transitions. [2024-09-12 18:49:48,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:49:48,710 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:48,710 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:48,722 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:48,910 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:49:48,911 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:48,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash -197075130, now seen corresponding path program 1 times [2024-09-12 18:49:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:48,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670670155] [2024-09-12 18:49:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593262489] [2024-09-12 18:49:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:48,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:48,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:48,922 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 18:49:48,923 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 18:49:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:48,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:48,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:48,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670670155] [2024-09-12 18:49:48,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:48,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593262489] [2024-09-12 18:49:48,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593262489] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:48,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:48,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513574881] [2024-09-12 18:49:48,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:48,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:48,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:48,979 INFO L87 Difference]: Start difference. First operand 302 states and 388 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:49,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:49,744 INFO L93 Difference]: Finished difference Result 343 states and 413 transitions. [2024-09-12 18:49:49,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:49,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2024-09-12 18:49:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:49,746 INFO L225 Difference]: With dead ends: 343 [2024-09-12 18:49:49,746 INFO L226 Difference]: Without dead ends: 341 [2024-09-12 18:49:49,746 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 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 18:49:49,746 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 133 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:49,746 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 199 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:49:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-09-12 18:49:49,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 303. [2024-09-12 18:49:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 210 states have (on average 1.5571428571428572) internal successors, (327), 269 states have internal predecessors, (327), 31 states have call successors, (31), 6 states have call predecessors, (31), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:49:49,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 387 transitions. [2024-09-12 18:49:49,776 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 387 transitions. Word has length 55 [2024-09-12 18:49:49,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:49,776 INFO L474 AbstractCegarLoop]: Abstraction has 303 states and 387 transitions. [2024-09-12 18:49:49,777 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:49,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 387 transitions. [2024-09-12 18:49:49,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:49:49,777 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:49,777 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 18:49:49,789 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 18:49:49,977 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:49:49,978 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:49,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:49,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1814361638, now seen corresponding path program 1 times [2024-09-12 18:49:49,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:49,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820872762] [2024-09-12 18:49:49,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:49,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:49,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987465075] [2024-09-12 18:49:49,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:49,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:49,997 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 18:49:49,998 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 18:49:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:50,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:50,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:50,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:50,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820872762] [2024-09-12 18:49:50,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:50,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987465075] [2024-09-12 18:49:50,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987465075] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:50,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:50,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077923822] [2024-09-12 18:49:50,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:50,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:50,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:50,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:50,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:50,137 INFO L87 Difference]: Start difference. First operand 303 states and 387 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:51,086 INFO L93 Difference]: Finished difference Result 343 states and 410 transitions. [2024-09-12 18:49:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2024-09-12 18:49:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:51,087 INFO L225 Difference]: With dead ends: 343 [2024-09-12 18:49:51,088 INFO L226 Difference]: Without dead ends: 341 [2024-09-12 18:49:51,088 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:51,088 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 132 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:51,088 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 202 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:49:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-09-12 18:49:51,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 304. [2024-09-12 18:49:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 270 states have internal predecessors, (326), 31 states have call successors, (31), 6 states have call predecessors, (31), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-09-12 18:49:51,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 386 transitions. [2024-09-12 18:49:51,124 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 386 transitions. Word has length 56 [2024-09-12 18:49:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:51,124 INFO L474 AbstractCegarLoop]: Abstraction has 304 states and 386 transitions. [2024-09-12 18:49:51,124 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:51,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 386 transitions. [2024-09-12 18:49:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:49:51,125 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:51,125 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 18:49:51,136 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 18:49:51,325 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:49:51,325 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:51,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:51,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1181355070, now seen corresponding path program 1 times [2024-09-12 18:49:51,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:51,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209171] [2024-09-12 18:49:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:51,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862524131] [2024-09-12 18:49:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:51,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:51,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:51,341 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 18:49:51,343 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 18:49:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:51,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:49:51,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:49:51,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:51,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209171] [2024-09-12 18:49:51,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862524131] [2024-09-12 18:49:51,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862524131] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:51,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:51,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:49:51,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334899118] [2024-09-12 18:49:51,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:51,475 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:51,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:51,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:51,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:51,476 INFO L87 Difference]: Start difference. First operand 304 states and 386 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:51,949 INFO L93 Difference]: Finished difference Result 323 states and 404 transitions. [2024-09-12 18:49:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:49:51,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-09-12 18:49:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:51,951 INFO L225 Difference]: With dead ends: 323 [2024-09-12 18:49:51,951 INFO L226 Difference]: Without dead ends: 301 [2024-09-12 18:49:51,951 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 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 18:49:51,952 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:51,952 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 240 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:49:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-09-12 18:49:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-09-12 18:49:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 200 states have (on average 1.575) internal successors, (315), 260 states have internal predecessors, (315), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 371 transitions. [2024-09-12 18:49:51,985 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 371 transitions. Word has length 60 [2024-09-12 18:49:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:51,985 INFO L474 AbstractCegarLoop]: Abstraction has 293 states and 371 transitions. [2024-09-12 18:49:51,985 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:49:51,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 371 transitions. [2024-09-12 18:49:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:49:51,986 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:51,986 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:51,998 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:52,186 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 18:49:52,187 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:52,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:52,187 INFO L85 PathProgramCache]: Analyzing trace with hash -781913598, now seen corresponding path program 1 times [2024-09-12 18:49:52,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:52,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976113650] [2024-09-12 18:49:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:52,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,247 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:52,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:52,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976113650] [2024-09-12 18:49:52,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976113650] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468620852] [2024-09-12 18:49:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:52,262 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:52,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:52,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:52,267 INFO L87 Difference]: Start difference. First operand 293 states and 371 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:52,324 INFO L93 Difference]: Finished difference Result 293 states and 371 transitions. [2024-09-12 18:49:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:52,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 63 [2024-09-12 18:49:52,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:52,326 INFO L225 Difference]: With dead ends: 293 [2024-09-12 18:49:52,326 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 18:49:52,326 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 18:49:52,327 INFO L434 NwaCegarLoop]: 136 mSDtfsCounter, 47 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:52,327 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 219 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:49:52,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 18:49:52,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 18:49:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 200 states have (on average 1.545) internal successors, (309), 258 states have internal predecessors, (309), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:52,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 365 transitions. [2024-09-12 18:49:52,356 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 365 transitions. Word has length 63 [2024-09-12 18:49:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:52,356 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 365 transitions. [2024-09-12 18:49:52,356 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:52,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 365 transitions. [2024-09-12 18:49:52,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:49:52,357 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:52,357 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:52,357 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:49:52,357 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:52,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:52,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1530482377, now seen corresponding path program 1 times [2024-09-12 18:49:52,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:52,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425898595] [2024-09-12 18:49:52,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:52,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:52,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:52,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425898595] [2024-09-12 18:49:52,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425898595] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:52,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:52,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3737454] [2024-09-12 18:49:52,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:52,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:52,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:52,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:52,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:52,416 INFO L87 Difference]: Start difference. First operand 291 states and 365 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:52,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:52,466 INFO L93 Difference]: Finished difference Result 291 states and 365 transitions. [2024-09-12 18:49:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:52,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2024-09-12 18:49:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:52,469 INFO L225 Difference]: With dead ends: 291 [2024-09-12 18:49:52,469 INFO L226 Difference]: Without dead ends: 289 [2024-09-12 18:49:52,469 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 18:49:52,469 INFO L434 NwaCegarLoop]: 135 mSDtfsCounter, 46 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:52,470 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 218 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:49:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-09-12 18:49:52,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-09-12 18:49:52,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 200 states have (on average 1.515) internal successors, (303), 256 states have internal predecessors, (303), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 359 transitions. [2024-09-12 18:49:52,503 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 359 transitions. Word has length 64 [2024-09-12 18:49:52,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:52,504 INFO L474 AbstractCegarLoop]: Abstraction has 289 states and 359 transitions. [2024-09-12 18:49:52,504 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:52,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:52,504 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 359 transitions. [2024-09-12 18:49:52,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:49:52,505 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:52,505 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:52,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:49:52,506 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:52,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 200355280, now seen corresponding path program 1 times [2024-09-12 18:49:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:52,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185696940] [2024-09-12 18:49:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:52,592 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:52,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:52,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185696940] [2024-09-12 18:49:52,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185696940] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:52,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:52,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:49:52,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719841627] [2024-09-12 18:49:52,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:52,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:52,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:52,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:52,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:52,593 INFO L87 Difference]: Start difference. First operand 289 states and 359 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:49:53,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:53,037 INFO L93 Difference]: Finished difference Result 292 states and 362 transitions. [2024-09-12 18:49:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:49:53,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 65 [2024-09-12 18:49:53,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:53,039 INFO L225 Difference]: With dead ends: 292 [2024-09-12 18:49:53,039 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 18:49:53,039 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:49:53,040 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 280 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:53,040 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 183 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:49:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 18:49:53,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 18:49:53,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 202 states have (on average 1.50990099009901) internal successors, (305), 258 states have internal predecessors, (305), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 361 transitions. [2024-09-12 18:49:53,079 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 361 transitions. Word has length 65 [2024-09-12 18:49:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:53,080 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 361 transitions. [2024-09-12 18:49:53,080 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:49:53,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 361 transitions. [2024-09-12 18:49:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:49:53,081 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:53,081 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:53,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:49:53,081 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:53,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 200341378, now seen corresponding path program 1 times [2024-09-12 18:49:53,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:53,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459335677] [2024-09-12 18:49:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:53,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:53,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459335677] [2024-09-12 18:49:53,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459335677] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:53,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:53,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:49:53,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784204648] [2024-09-12 18:49:53,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:53,163 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:53,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:53,164 INFO L87 Difference]: Start difference. First operand 291 states and 361 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:49:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:53,544 INFO L93 Difference]: Finished difference Result 294 states and 364 transitions. [2024-09-12 18:49:53,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:49:53,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 65 [2024-09-12 18:49:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:53,546 INFO L225 Difference]: With dead ends: 294 [2024-09-12 18:49:53,546 INFO L226 Difference]: Without dead ends: 293 [2024-09-12 18:49:53,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:49:53,547 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 280 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:53,547 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 183 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-09-12 18:49:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-09-12 18:49:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 204 states have (on average 1.5049019607843137) internal successors, (307), 260 states have internal predecessors, (307), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 363 transitions. [2024-09-12 18:49:53,594 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 363 transitions. Word has length 65 [2024-09-12 18:49:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:53,594 INFO L474 AbstractCegarLoop]: Abstraction has 293 states and 363 transitions. [2024-09-12 18:49:53,594 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:49:53,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 363 transitions. [2024-09-12 18:49:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:49:53,595 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:53,595 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:53,595 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:49:53,595 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:53,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1916046509, now seen corresponding path program 1 times [2024-09-12 18:49:53,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:53,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505620538] [2024-09-12 18:49:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:53,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505620538] [2024-09-12 18:49:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505620538] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659511492] [2024-09-12 18:49:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:53,668 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:53,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:53,668 INFO L87 Difference]: Start difference. First operand 293 states and 363 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:53,831 INFO L93 Difference]: Finished difference Result 311 states and 374 transitions. [2024-09-12 18:49:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:53,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-09-12 18:49:53,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:53,833 INFO L225 Difference]: With dead ends: 311 [2024-09-12 18:49:53,833 INFO L226 Difference]: Without dead ends: 307 [2024-09-12 18:49:53,833 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 18:49:53,833 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:53,834 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 179 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:49:53,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-09-12 18:49:53,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 299. [2024-09-12 18:49:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 210 states have (on average 1.4857142857142858) internal successors, (312), 266 states have internal predecessors, (312), 30 states have call successors, (30), 7 states have call predecessors, (30), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:53,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 368 transitions. [2024-09-12 18:49:53,892 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 368 transitions. Word has length 66 [2024-09-12 18:49:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:53,892 INFO L474 AbstractCegarLoop]: Abstraction has 299 states and 368 transitions. [2024-09-12 18:49:53,892 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:53,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 368 transitions. [2024-09-12 18:49:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:49:53,893 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:53,893 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2024-09-12 18:49:53,893 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:49:53,893 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:53,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1834684911, now seen corresponding path program 1 times [2024-09-12 18:49:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844452665] [2024-09-12 18:49:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:53,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:53,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844452665] [2024-09-12 18:49:53,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844452665] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:53,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:53,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:49:53,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991404755] [2024-09-12 18:49:53,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:53,966 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:49:53,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:53,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:49:53,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:49:53,967 INFO L87 Difference]: Start difference. First operand 299 states and 368 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:54,065 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2024-09-12 18:49:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:49:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2024-09-12 18:49:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:54,067 INFO L225 Difference]: With dead ends: 305 [2024-09-12 18:49:54,067 INFO L226 Difference]: Without dead ends: 303 [2024-09-12 18:49:54,067 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 18:49:54,068 INFO L434 NwaCegarLoop]: 138 mSDtfsCounter, 47 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:54,068 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 486 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:49:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-09-12 18:49:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2024-09-12 18:49:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 213 states have (on average 1.4788732394366197) internal successors, (315), 269 states have internal predecessors, (315), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 371 transitions. [2024-09-12 18:49:54,128 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 371 transitions. Word has length 68 [2024-09-12 18:49:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:54,129 INFO L474 AbstractCegarLoop]: Abstraction has 303 states and 371 transitions. [2024-09-12 18:49:54,129 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 18:49:54,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 371 transitions. [2024-09-12 18:49:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:49:54,130 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:54,130 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:54,130 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 18:49:54,130 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:54,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:54,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1634439153, now seen corresponding path program 1 times [2024-09-12 18:49:54,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:54,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421282964] [2024-09-12 18:49:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:54,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:54,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421282964] [2024-09-12 18:49:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421282964] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:54,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:54,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:49:54,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962856389] [2024-09-12 18:49:54,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:54,194 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:49:54,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:49:54,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:49:54,195 INFO L87 Difference]: Start difference. First operand 303 states and 371 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:54,488 INFO L93 Difference]: Finished difference Result 334 states and 405 transitions. [2024-09-12 18:49:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:54,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-09-12 18:49:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:54,490 INFO L225 Difference]: With dead ends: 334 [2024-09-12 18:49:54,490 INFO L226 Difference]: Without dead ends: 332 [2024-09-12 18:49:54,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 18:49:54,491 INFO L434 NwaCegarLoop]: 110 mSDtfsCounter, 44 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:54,491 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 181 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:49:54,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-09-12 18:49:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 313. [2024-09-12 18:49:54,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4708520179372198) internal successors, (328), 279 states have internal predecessors, (328), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 384 transitions. [2024-09-12 18:49:54,550 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 384 transitions. Word has length 68 [2024-09-12 18:49:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:54,550 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 384 transitions. [2024-09-12 18:49:54,551 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:54,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 384 transitions. [2024-09-12 18:49:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:49:54,554 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:54,554 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 18:49:54,554 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 18:49:54,554 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:54,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash 467542024, now seen corresponding path program 1 times [2024-09-12 18:49:54,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:54,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500199299] [2024-09-12 18:49:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:54,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:54,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095847484] [2024-09-12 18:49:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:54,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:54,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:54,571 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 18:49:54,572 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 18:49:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:54,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:49:54,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:54,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:49:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:54,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500199299] [2024-09-12 18:49:54,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:54,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095847484] [2024-09-12 18:49:54,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095847484] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:49:54,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:49:54,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 18:49:54,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542617355] [2024-09-12 18:49:54,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:49:54,809 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:54,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:54,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:49:54,810 INFO L87 Difference]: Start difference. First operand 313 states and 384 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:55,243 INFO L93 Difference]: Finished difference Result 325 states and 390 transitions. [2024-09-12 18:49:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:49:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-09-12 18:49:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:55,245 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:49:55,245 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:49:55,245 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:49:55,246 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 32 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:55,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 212 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:49:55,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:49:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 313. [2024-09-12 18:49:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4618834080717489) internal successors, (326), 279 states have internal predecessors, (326), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 382 transitions. [2024-09-12 18:49:55,298 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 382 transitions. Word has length 71 [2024-09-12 18:49:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:55,299 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 382 transitions. [2024-09-12 18:49:55,299 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:55,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 382 transitions. [2024-09-12 18:49:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:49:55,299 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:55,299 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 18:49:55,311 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 18:49:55,500 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 18:49:55,500 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:55,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:55,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1608900918, now seen corresponding path program 1 times [2024-09-12 18:49:55,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:55,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832367509] [2024-09-12 18:49:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:55,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:55,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952532201] [2024-09-12 18:49:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:55,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:55,511 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 18:49:55,512 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 18:49:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:55,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:49:55,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:49:55,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:49:56,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:56,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832367509] [2024-09-12 18:49:56,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:56,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952532201] [2024-09-12 18:49:56,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952532201] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:49:56,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:49:56,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 18:49:56,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509633035] [2024-09-12 18:49:56,038 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:49:56,038 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:56,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:56,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:56,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:49:56,039 INFO L87 Difference]: Start difference. First operand 313 states and 382 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:56,351 INFO L93 Difference]: Finished difference Result 325 states and 388 transitions. [2024-09-12 18:49:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:56,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-09-12 18:49:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:56,352 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:49:56,352 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:49:56,353 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:49:56,353 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 62 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:56,353 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:49:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:49:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 313. [2024-09-12 18:49:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.452914798206278) internal successors, (324), 279 states have internal predecessors, (324), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 380 transitions. [2024-09-12 18:49:56,411 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 380 transitions. Word has length 72 [2024-09-12 18:49:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:56,412 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 380 transitions. [2024-09-12 18:49:56,412 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:56,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 380 transitions. [2024-09-12 18:49:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:49:56,412 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:56,413 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:56,425 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 18:49:56,613 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 18:49:56,613 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:56,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:56,614 INFO L85 PathProgramCache]: Analyzing trace with hash 719557570, now seen corresponding path program 1 times [2024-09-12 18:49:56,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:56,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134072636] [2024-09-12 18:49:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:49:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:49:56,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134072636] [2024-09-12 18:49:56,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134072636] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:49:56,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900005646] [2024-09-12 18:49:56,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:56,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:56,690 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 18:49:56,690 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 18:49:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:56,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:49:56,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:49:56,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:56,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900005646] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:56,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:49:56,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-12 18:49:56,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285545622] [2024-09-12 18:49:56,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:56,856 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:56,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:49:56,857 INFO L87 Difference]: Start difference. First operand 313 states and 380 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 18:49:57,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:57,528 INFO L93 Difference]: Finished difference Result 327 states and 397 transitions. [2024-09-12 18:49:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:49:57,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 76 [2024-09-12 18:49:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:57,530 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:49:57,530 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:49:57,530 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:49:57,530 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 64 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:57,531 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 172 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:49:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:49:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 313. [2024-09-12 18:49:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4439461883408071) internal successors, (322), 279 states have internal predecessors, (322), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:57,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 378 transitions. [2024-09-12 18:49:57,584 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 378 transitions. Word has length 76 [2024-09-12 18:49:57,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:57,585 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 378 transitions. [2024-09-12 18:49:57,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 18:49:57,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:57,585 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 378 transitions. [2024-09-12 18:49:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:49:57,586 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:57,586 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1] [2024-09-12 18:49:57,598 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 18:49:57,787 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 18:49:57,787 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:57,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:57,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1067711604, now seen corresponding path program 1 times [2024-09-12 18:49:57,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669455907] [2024-09-12 18:49:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:57,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:57,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177627946] [2024-09-12 18:49:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:57,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:57,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:57,801 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 18:49:57,803 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 18:49:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:57,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:57,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-12 18:49:57,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:57,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669455907] [2024-09-12 18:49:57,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:49:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177627946] [2024-09-12 18:49:57,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177627946] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:57,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:49:57,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:49:57,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354800581] [2024-09-12 18:49:57,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:57,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:57,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:49:57,885 INFO L87 Difference]: Start difference. First operand 313 states and 378 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:58,477 INFO L93 Difference]: Finished difference Result 332 states and 378 transitions. [2024-09-12 18:49:58,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:58,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-09-12 18:49:58,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:58,481 INFO L225 Difference]: With dead ends: 332 [2024-09-12 18:49:58,481 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:49:58,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 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 18:49:58,482 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 92 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:58,482 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 193 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:49:58,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:49:58,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 313. [2024-09-12 18:49:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4394618834080717) internal successors, (321), 279 states have internal predecessors, (321), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 377 transitions. [2024-09-12 18:49:58,532 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 377 transitions. Word has length 75 [2024-09-12 18:49:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:58,532 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 377 transitions. [2024-09-12 18:49:58,532 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:49:58,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 377 transitions. [2024-09-12 18:49:58,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:49:58,533 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:58,533 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:58,545 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 18:49:58,737 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 18:49:58,737 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:58,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:58,738 INFO L85 PathProgramCache]: Analyzing trace with hash 831448346, now seen corresponding path program 1 times [2024-09-12 18:49:58,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435708994] [2024-09-12 18:49:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:49:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:49:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:49:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:49:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,797 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:49:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:49:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:49:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,813 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:49:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:49:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:49:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:49:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435708994] [2024-09-12 18:49:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435708994] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:49:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596689255] [2024-09-12 18:49:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:58,819 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 18:49:58,821 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 18:49:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:58,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:49:58,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:49:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:49:58,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:49:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596689255] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:49:58,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:49:58,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-12 18:49:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326342894] [2024-09-12 18:49:58,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:49:58,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:49:58,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:49:58,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:49:58,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:49:58,992 INFO L87 Difference]: Start difference. First operand 313 states and 377 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 18:49:59,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:49:59,592 INFO L93 Difference]: Finished difference Result 327 states and 394 transitions. [2024-09-12 18:49:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:49:59,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 77 [2024-09-12 18:49:59,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:49:59,593 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:49:59,593 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:49:59,594 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:49:59,594 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 61 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:49:59,594 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 177 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:49:59,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:49:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 313. [2024-09-12 18:49:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4304932735426008) internal successors, (319), 279 states have internal predecessors, (319), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:49:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 375 transitions. [2024-09-12 18:49:59,644 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 375 transitions. Word has length 77 [2024-09-12 18:49:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:49:59,644 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 375 transitions. [2024-09-12 18:49:59,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 18:49:59,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:59,645 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 375 transitions. [2024-09-12 18:49:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:49:59,645 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:49:59,645 INFO L216 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:49:59,657 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 18:49:59,846 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 18:49:59,846 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:49:59,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:49:59,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1260678714, now seen corresponding path program 1 times [2024-09-12 18:49:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:49:59,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929880628] [2024-09-12 18:49:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:59,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:49:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:49:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689680173] [2024-09-12 18:49:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:49:59,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:49:59,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:49:59,864 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 18:49:59,865 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 18:49:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:49:59,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:49:59,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:50:00,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:50:00,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:00,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929880628] [2024-09-12 18:50:00,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:00,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689680173] [2024-09-12 18:50:00,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689680173] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:50:00,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:50:00,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:50:00,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291463781] [2024-09-12 18:50:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:50:00,018 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:50:00,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:00,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:50:00,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:50:00,019 INFO L87 Difference]: Start difference. First operand 313 states and 375 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:50:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:00,978 INFO L93 Difference]: Finished difference Result 334 states and 375 transitions. [2024-09-12 18:50:00,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:50:00,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-09-12 18:50:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:00,980 INFO L225 Difference]: With dead ends: 334 [2024-09-12 18:50:00,980 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:50:00,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:50:00,981 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 63 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:00,981 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 250 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:50:00,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:50:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 313. [2024-09-12 18:50:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 223 states have (on average 1.4170403587443947) internal successors, (316), 279 states have internal predecessors, (316), 30 states have call successors, (30), 8 states have call predecessors, (30), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 18:50:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2024-09-12 18:50:01,041 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 76 [2024-09-12 18:50:01,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:01,041 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2024-09-12 18:50:01,042 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:50:01,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2024-09-12 18:50:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:50:01,042 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:01,042 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:01,054 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 18:50:01,243 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:50:01,243 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:01,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1466695806, now seen corresponding path program 1 times [2024-09-12 18:50:01,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:01,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394082675] [2024-09-12 18:50:01,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:01,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:50:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:50:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:50:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:50:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:50:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:50:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:50:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:50:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:50:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:50:01,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:01,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394082675] [2024-09-12 18:50:01,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394082675] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:01,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685129140] [2024-09-12 18:50:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:01,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:01,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:01,427 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 18:50:01,428 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 18:50:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:01,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:50:01,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:50:01,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:50:01,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685129140] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:50:01,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:01,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 18:50:01,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213635481] [2024-09-12 18:50:01,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:50:01,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:50:01,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:01,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:50:01,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:50:01,635 INFO L87 Difference]: Start difference. First operand 313 states and 372 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:50:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:02,390 INFO L93 Difference]: Finished difference Result 336 states and 397 transitions. [2024-09-12 18:50:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:50:02,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2024-09-12 18:50:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:02,391 INFO L225 Difference]: With dead ends: 336 [2024-09-12 18:50:02,391 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 18:50:02,392 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:02,392 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 62 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:02,392 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 348 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:50:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 18:50:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 309. [2024-09-12 18:50:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 219 states have (on average 1.4200913242009132) internal successors, (311), 274 states have internal predecessors, (311), 28 states have call successors, (28), 10 states have call predecessors, (28), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-09-12 18:50:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 364 transitions. [2024-09-12 18:50:02,442 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 364 transitions. Word has length 81 [2024-09-12 18:50:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:02,442 INFO L474 AbstractCegarLoop]: Abstraction has 309 states and 364 transitions. [2024-09-12 18:50:02,442 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 18:50:02,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 364 transitions. [2024-09-12 18:50:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:50:02,443 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:02,443 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1] [2024-09-12 18:50:02,456 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 18:50:02,643 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:02,644 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:02,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:02,644 INFO L85 PathProgramCache]: Analyzing trace with hash 718558886, now seen corresponding path program 1 times [2024-09-12 18:50:02,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:02,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726332866] [2024-09-12 18:50:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:02,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:02,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167667734] [2024-09-12 18:50:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:02,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:02,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:02,653 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 18:50:02,654 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 18:50:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:02,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:50:02,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-09-12 18:50:02,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:50:02,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:02,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726332866] [2024-09-12 18:50:02,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:02,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167667734] [2024-09-12 18:50:02,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167667734] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:50:02,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:50:02,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:50:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908293544] [2024-09-12 18:50:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:50:02,822 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:50:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:50:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:50:02,822 INFO L87 Difference]: Start difference. First operand 309 states and 364 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:50:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:03,134 INFO L93 Difference]: Finished difference Result 327 states and 372 transitions. [2024-09-12 18:50:03,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:50:03,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2024-09-12 18:50:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:03,135 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:50:03,135 INFO L226 Difference]: Without dead ends: 314 [2024-09-12 18:50:03,136 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 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 18:50:03,136 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 32 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:03,136 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 336 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:50:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-09-12 18:50:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2024-09-12 18:50:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 217 states have (on average 1.4147465437788018) internal successors, (307), 272 states have internal predecessors, (307), 27 states have call successors, (27), 12 states have call predecessors, (27), 11 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 18:50:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 358 transitions. [2024-09-12 18:50:03,186 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 358 transitions. Word has length 80 [2024-09-12 18:50:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:03,186 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 358 transitions. [2024-09-12 18:50:03,186 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:50:03,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 358 transitions. [2024-09-12 18:50:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 18:50:03,187 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:03,187 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 18:50:03,199 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 18:50:03,391 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-09-12 18:50:03,391 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:03,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:03,392 INFO L85 PathProgramCache]: Analyzing trace with hash -954485580, now seen corresponding path program 1 times [2024-09-12 18:50:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:03,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993814257] [2024-09-12 18:50:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:03,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584147868] [2024-09-12 18:50:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:03,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:03,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:03,402 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 18:50:03,403 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 18:50:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:03,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:50:03,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:50:03,651 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:03,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:03,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993814257] [2024-09-12 18:50:03,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:03,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584147868] [2024-09-12 18:50:03,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584147868] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:03,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:03,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:50:03,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463925272] [2024-09-12 18:50:03,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:03,736 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:50:03,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:50:03,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:50:03,736 INFO L87 Difference]: Start difference. First operand 308 states and 358 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:04,121 INFO L93 Difference]: Finished difference Result 461 states and 571 transitions. [2024-09-12 18:50:04,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:50:04,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 82 [2024-09-12 18:50:04,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:04,123 INFO L225 Difference]: With dead ends: 461 [2024-09-12 18:50:04,123 INFO L226 Difference]: Without dead ends: 457 [2024-09-12 18:50:04,123 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:50:04,123 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 361 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:04,124 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 357 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:50:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-09-12 18:50:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 382. [2024-09-12 18:50:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 283 states have (on average 1.452296819787986) internal successors, (411), 337 states have internal predecessors, (411), 35 states have call successors, (35), 12 states have call predecessors, (35), 11 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:50:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 478 transitions. [2024-09-12 18:50:04,188 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 478 transitions. Word has length 82 [2024-09-12 18:50:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:04,188 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 478 transitions. [2024-09-12 18:50:04,188 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:04,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 478 transitions. [2024-09-12 18:50:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:50:04,189 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:04,189 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:04,200 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 18:50:04,392 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:50:04,392 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:04,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 475718167, now seen corresponding path program 1 times [2024-09-12 18:50:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:04,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912473413] [2024-09-12 18:50:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:04,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:04,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530584553] [2024-09-12 18:50:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:04,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:04,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:04,402 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 18:50:04,403 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 18:50:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:04,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:50:04,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:50:04,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:05,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:05,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912473413] [2024-09-12 18:50:05,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:05,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530584553] [2024-09-12 18:50:05,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530584553] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:05,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:05,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:50:05,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397802433] [2024-09-12 18:50:05,189 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:05,190 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:50:05,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:05,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:50:05,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:50:05,190 INFO L87 Difference]: Start difference. First operand 382 states and 478 transitions. Second operand has 8 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:05,513 INFO L93 Difference]: Finished difference Result 397 states and 487 transitions. [2024-09-12 18:50:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:50:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 83 [2024-09-12 18:50:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:05,515 INFO L225 Difference]: With dead ends: 397 [2024-09-12 18:50:05,515 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 18:50:05,515 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:50:05,515 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 242 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:05,516 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 380 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:50:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 18:50:05,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 376. [2024-09-12 18:50:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 283 states have (on average 1.3992932862190812) internal successors, (396), 331 states have internal predecessors, (396), 35 states have call successors, (35), 12 states have call predecessors, (35), 11 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 18:50:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 463 transitions. [2024-09-12 18:50:05,587 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 463 transitions. Word has length 83 [2024-09-12 18:50:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:05,587 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 463 transitions. [2024-09-12 18:50:05,587 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:05,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 463 transitions. [2024-09-12 18:50:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:50:05,588 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:05,588 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 18:50:05,599 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 18:50:05,791 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 18:50:05,792 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:05,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:05,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1862361366, now seen corresponding path program 1 times [2024-09-12 18:50:05,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:05,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992668487] [2024-09-12 18:50:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:05,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:05,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348597780] [2024-09-12 18:50:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:05,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:05,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:05,807 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 18:50:05,807 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 18:50:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:05,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:50:05,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:50:06,129 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:06,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:06,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992668487] [2024-09-12 18:50:06,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:06,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348597780] [2024-09-12 18:50:06,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348597780] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:06,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:06,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:50:06,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706680972] [2024-09-12 18:50:06,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:06,277 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:50:06,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:06,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:50:06,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:50:06,278 INFO L87 Difference]: Start difference. First operand 376 states and 463 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:50:06,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:06,926 INFO L93 Difference]: Finished difference Result 500 states and 646 transitions. [2024-09-12 18:50:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:50:06,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 84 [2024-09-12 18:50:06,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:06,928 INFO L225 Difference]: With dead ends: 500 [2024-09-12 18:50:06,928 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:50:06,929 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:50:06,929 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 455 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:06,929 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 271 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:50:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:50:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2024-09-12 18:50:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 366 states have (on average 1.4480874316939891) internal successors, (530), 414 states have internal predecessors, (530), 45 states have call successors, (45), 12 states have call predecessors, (45), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-09-12 18:50:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 617 transitions. [2024-09-12 18:50:07,026 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 617 transitions. Word has length 84 [2024-09-12 18:50:07,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:07,026 INFO L474 AbstractCegarLoop]: Abstraction has 469 states and 617 transitions. [2024-09-12 18:50:07,026 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:50:07,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:07,027 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 617 transitions. [2024-09-12 18:50:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:50:07,027 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:07,027 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 18:50:07,042 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 18:50:07,228 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:07,228 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:07,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1898627577, now seen corresponding path program 1 times [2024-09-12 18:50:07,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:07,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489517480] [2024-09-12 18:50:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:07,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631356712] [2024-09-12 18:50:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:07,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:07,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:07,238 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 18:50:07,239 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 18:50:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:07,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:50:07,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:50:07,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:08,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:08,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489517480] [2024-09-12 18:50:08,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:08,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631356712] [2024-09-12 18:50:08,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631356712] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:08,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:08,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:50:08,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455420041] [2024-09-12 18:50:08,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:08,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:50:08,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:08,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:50:08,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:50:08,199 INFO L87 Difference]: Start difference. First operand 469 states and 617 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:50:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:08,968 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2024-09-12 18:50:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:50:08,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 85 [2024-09-12 18:50:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:08,971 INFO L225 Difference]: With dead ends: 552 [2024-09-12 18:50:08,971 INFO L226 Difference]: Without dead ends: 550 [2024-09-12 18:50:08,971 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:50:08,971 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 268 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:08,971 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 396 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:50:08,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-09-12 18:50:09,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 504. [2024-09-12 18:50:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 397 states have (on average 1.4433249370277077) internal successors, (573), 445 states have internal predecessors, (573), 49 states have call successors, (49), 12 states have call predecessors, (49), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-09-12 18:50:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 668 transitions. [2024-09-12 18:50:09,070 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 668 transitions. Word has length 85 [2024-09-12 18:50:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:09,070 INFO L474 AbstractCegarLoop]: Abstraction has 504 states and 668 transitions. [2024-09-12 18:50:09,071 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 18:50:09,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 668 transitions. [2024-09-12 18:50:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:50:09,071 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:09,071 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 18:50:09,083 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 18:50:09,271 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:09,272 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:09,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:09,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1272087176, now seen corresponding path program 1 times [2024-09-12 18:50:09,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:09,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847738566] [2024-09-12 18:50:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:09,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626919940] [2024-09-12 18:50:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:09,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:09,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:09,289 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 18:50:09,290 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 18:50:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:09,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:50:09,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:50:09,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:09,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:09,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847738566] [2024-09-12 18:50:09,813 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:09,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626919940] [2024-09-12 18:50:09,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626919940] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:09,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:09,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:50:09,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120498863] [2024-09-12 18:50:09,814 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:09,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:50:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:09,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:50:09,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:50:09,814 INFO L87 Difference]: Start difference. First operand 504 states and 668 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:10,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:10,517 INFO L93 Difference]: Finished difference Result 533 states and 697 transitions. [2024-09-12 18:50:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:50:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 86 [2024-09-12 18:50:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:10,519 INFO L225 Difference]: With dead ends: 533 [2024-09-12 18:50:10,519 INFO L226 Difference]: Without dead ends: 529 [2024-09-12 18:50:10,519 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:50:10,520 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 340 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:10,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 281 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:50:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-09-12 18:50:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 453. [2024-09-12 18:50:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 352 states have (on average 1.4318181818181819) internal successors, (504), 400 states have internal predecessors, (504), 43 states have call successors, (43), 12 states have call predecessors, (43), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 18:50:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 587 transitions. [2024-09-12 18:50:10,623 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 587 transitions. Word has length 86 [2024-09-12 18:50:10,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:10,623 INFO L474 AbstractCegarLoop]: Abstraction has 453 states and 587 transitions. [2024-09-12 18:50:10,623 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:10,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 587 transitions. [2024-09-12 18:50:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-09-12 18:50:10,623 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:10,624 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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 18:50:10,635 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 18:50:10,827 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:50:10,828 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:10,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:10,828 INFO L85 PathProgramCache]: Analyzing trace with hash -779996709, now seen corresponding path program 1 times [2024-09-12 18:50:10,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:10,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888930474] [2024-09-12 18:50:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:10,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:10,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1376743048] [2024-09-12 18:50:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:10,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:10,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:10,838 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 18:50:10,839 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 18:50:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:10,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:50:10,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 18:50:11,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:11,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:11,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888930474] [2024-09-12 18:50:11,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:11,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376743048] [2024-09-12 18:50:11,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376743048] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:11,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:11,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:50:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955651713] [2024-09-12 18:50:11,522 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:11,522 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:50:11,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:11,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:50:11,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:50:11,523 INFO L87 Difference]: Start difference. First operand 453 states and 587 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:12,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:12,510 INFO L93 Difference]: Finished difference Result 496 states and 643 transitions. [2024-09-12 18:50:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:50:12,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 87 [2024-09-12 18:50:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:12,512 INFO L225 Difference]: With dead ends: 496 [2024-09-12 18:50:12,512 INFO L226 Difference]: Without dead ends: 492 [2024-09-12 18:50:12,513 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:12,513 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 215 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:12,513 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 362 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:50:12,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-09-12 18:50:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 442. [2024-09-12 18:50:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 346 states have (on average 1.407514450867052) internal successors, (487), 391 states have internal predecessors, (487), 41 states have call successors, (41), 12 states have call predecessors, (41), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-09-12 18:50:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 566 transitions. [2024-09-12 18:50:12,610 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 566 transitions. Word has length 87 [2024-09-12 18:50:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:12,610 INFO L474 AbstractCegarLoop]: Abstraction has 442 states and 566 transitions. [2024-09-12 18:50:12,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:50:12,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 566 transitions. [2024-09-12 18:50:12,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:50:12,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:12,611 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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 18:50:12,623 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 18:50:12,811 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:50:12,811 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:12,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:12,812 INFO L85 PathProgramCache]: Analyzing trace with hash -9024891, now seen corresponding path program 2 times [2024-09-12 18:50:12,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:12,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529337039] [2024-09-12 18:50:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:12,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087750486] [2024-09-12 18:50:12,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:50:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:12,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:12,826 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 18:50:12,828 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 18:50:12,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:50:12,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:50:12,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:50:12,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:50:13,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 18:50:13,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529337039] [2024-09-12 18:50:13,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087750486] [2024-09-12 18:50:13,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087750486] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:13,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:50:13,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-09-12 18:50:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515843759] [2024-09-12 18:50:13,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:13,294 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:50:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:50:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:50:13,294 INFO L87 Difference]: Start difference. First operand 442 states and 566 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:50:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:15,063 INFO L93 Difference]: Finished difference Result 551 states and 723 transitions. [2024-09-12 18:50:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:50:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 91 [2024-09-12 18:50:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:15,065 INFO L225 Difference]: With dead ends: 551 [2024-09-12 18:50:15,065 INFO L226 Difference]: Without dead ends: 549 [2024-09-12 18:50:15,065 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 169 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:15,065 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:15,066 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 271 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:50:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-09-12 18:50:15,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 498. [2024-09-12 18:50:15,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 395 states have (on average 1.4025316455696202) internal successors, (554), 440 states have internal predecessors, (554), 46 states have call successors, (46), 14 states have call predecessors, (46), 13 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-09-12 18:50:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 643 transitions. [2024-09-12 18:50:15,229 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 643 transitions. Word has length 91 [2024-09-12 18:50:15,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:15,229 INFO L474 AbstractCegarLoop]: Abstraction has 498 states and 643 transitions. [2024-09-12 18:50:15,229 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:50:15,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:15,229 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 643 transitions. [2024-09-12 18:50:15,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:50:15,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:15,230 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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 18:50:15,248 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-09-12 18:50:15,430 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:50:15,431 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:15,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:15,431 INFO L85 PathProgramCache]: Analyzing trace with hash 234821100, now seen corresponding path program 1 times [2024-09-12 18:50:15,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:15,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667784003] [2024-09-12 18:50:15,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:15,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:15,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536537347] [2024-09-12 18:50:15,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:15,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:15,443 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 18:50:15,446 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 18:50:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:15,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:50:15,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:50:15,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:15,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667784003] [2024-09-12 18:50:15,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536537347] [2024-09-12 18:50:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536537347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:15,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:15,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:50:15,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916975647] [2024-09-12 18:50:15,899 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:15,899 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:50:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:15,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:50:15,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:50:15,899 INFO L87 Difference]: Start difference. First operand 498 states and 643 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 18:50:17,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:17,039 INFO L93 Difference]: Finished difference Result 670 states and 896 transitions. [2024-09-12 18:50:17,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:50:17,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 93 [2024-09-12 18:50:17,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:17,042 INFO L225 Difference]: With dead ends: 670 [2024-09-12 18:50:17,042 INFO L226 Difference]: Without dead ends: 668 [2024-09-12 18:50:17,042 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:50:17,043 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 362 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:17,043 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 426 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:50:17,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-09-12 18:50:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 634. [2024-09-12 18:50:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 515 states have (on average 1.4194174757281552) internal successors, (731), 560 states have internal predecessors, (731), 62 states have call successors, (62), 14 states have call predecessors, (62), 13 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 18:50:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 852 transitions. [2024-09-12 18:50:17,201 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 852 transitions. Word has length 93 [2024-09-12 18:50:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:17,201 INFO L474 AbstractCegarLoop]: Abstraction has 634 states and 852 transitions. [2024-09-12 18:50:17,201 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 18:50:17,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 852 transitions. [2024-09-12 18:50:17,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:50:17,202 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:17,202 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:17,215 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 18:50:17,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 18:50:17,402 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:17,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1310480404, now seen corresponding path program 1 times [2024-09-12 18:50:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850954684] [2024-09-12 18:50:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:17,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955860656] [2024-09-12 18:50:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:17,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:17,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:17,418 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 18:50:17,419 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 18:50:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:17,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:50:17,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:50:17,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:19,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:19,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850954684] [2024-09-12 18:50:19,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:19,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955860656] [2024-09-12 18:50:19,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955860656] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:19,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:19,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:50:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769801991] [2024-09-12 18:50:19,733 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:19,733 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:50:19,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:19,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:50:19,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=138, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:50:19,734 INFO L87 Difference]: Start difference. First operand 634 states and 852 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 18:50:20,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:20,750 INFO L93 Difference]: Finished difference Result 658 states and 873 transitions. [2024-09-12 18:50:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:50:20,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 94 [2024-09-12 18:50:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:20,753 INFO L225 Difference]: With dead ends: 658 [2024-09-12 18:50:20,753 INFO L226 Difference]: Without dead ends: 651 [2024-09-12 18:50:20,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=150, Invalid=355, Unknown=1, NotChecked=0, Total=506 [2024-09-12 18:50:20,755 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 513 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:20,755 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 395 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:50:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-09-12 18:50:20,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 613. [2024-09-12 18:50:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 502 states have (on average 1.3565737051792828) internal successors, (681), 541 states have internal predecessors, (681), 60 states have call successors, (60), 14 states have call predecessors, (60), 13 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 18:50:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 798 transitions. [2024-09-12 18:50:20,914 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 798 transitions. Word has length 94 [2024-09-12 18:50:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:20,914 INFO L474 AbstractCegarLoop]: Abstraction has 613 states and 798 transitions. [2024-09-12 18:50:20,915 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 18:50:20,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 798 transitions. [2024-09-12 18:50:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:50:20,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:20,915 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:20,927 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:50:21,115 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:50:21,116 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:21,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash 731094512, now seen corresponding path program 1 times [2024-09-12 18:50:21,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955693313] [2024-09-12 18:50:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:21,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251098107] [2024-09-12 18:50:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:21,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:21,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:21,125 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 18:50:21,126 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 18:50:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:21,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:50:21,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:50:21,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:21,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955693313] [2024-09-12 18:50:21,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:21,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251098107] [2024-09-12 18:50:21,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251098107] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:21,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:21,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:50:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752628944] [2024-09-12 18:50:21,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:21,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:50:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:50:21,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:21,711 INFO L87 Difference]: Start difference. First operand 613 states and 798 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 18:50:22,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:22,857 INFO L93 Difference]: Finished difference Result 662 states and 861 transitions. [2024-09-12 18:50:22,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:50:22,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 97 [2024-09-12 18:50:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:22,859 INFO L225 Difference]: With dead ends: 662 [2024-09-12 18:50:22,859 INFO L226 Difference]: Without dead ends: 657 [2024-09-12 18:50:22,860 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:50:22,860 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 350 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:22,860 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 337 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:50:22,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-09-12 18:50:23,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 524. [2024-09-12 18:50:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 423 states have (on average 1.3333333333333333) internal successors, (564), 462 states have internal predecessors, (564), 50 states have call successors, (50), 14 states have call predecessors, (50), 13 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 18:50:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 661 transitions. [2024-09-12 18:50:23,011 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 661 transitions. Word has length 97 [2024-09-12 18:50:23,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:23,011 INFO L474 AbstractCegarLoop]: Abstraction has 524 states and 661 transitions. [2024-09-12 18:50:23,011 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 18:50:23,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:23,011 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 661 transitions. [2024-09-12 18:50:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 18:50:23,012 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:23,012 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:23,023 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 18:50:23,212 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:23,212 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:23,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1189093488, now seen corresponding path program 1 times [2024-09-12 18:50:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:23,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542882530] [2024-09-12 18:50:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:23,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28547915] [2024-09-12 18:50:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:23,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:23,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:23,228 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 18:50:23,229 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 18:50:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:23,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:50:23,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-12 18:50:23,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:23,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542882530] [2024-09-12 18:50:23,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28547915] [2024-09-12 18:50:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28547915] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:23,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:23,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:50:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953500418] [2024-09-12 18:50:23,757 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:23,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:50:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:50:23,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:50:23,758 INFO L87 Difference]: Start difference. First operand 524 states and 661 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:50:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:24,891 INFO L93 Difference]: Finished difference Result 547 states and 687 transitions. [2024-09-12 18:50:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:50:24,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 98 [2024-09-12 18:50:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:24,893 INFO L225 Difference]: With dead ends: 547 [2024-09-12 18:50:24,894 INFO L226 Difference]: Without dead ends: 543 [2024-09-12 18:50:24,894 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:50:24,894 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 151 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:24,894 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 339 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:50:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-09-12 18:50:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 534. [2024-09-12 18:50:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 435 states have (on average 1.3057471264367817) internal successors, (568), 471 states have internal predecessors, (568), 51 states have call successors, (51), 14 states have call predecessors, (51), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-09-12 18:50:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 667 transitions. [2024-09-12 18:50:25,055 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 667 transitions. Word has length 98 [2024-09-12 18:50:25,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:25,055 INFO L474 AbstractCegarLoop]: Abstraction has 534 states and 667 transitions. [2024-09-12 18:50:25,056 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 18:50:25,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 667 transitions. [2024-09-12 18:50:25,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:50:25,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:25,056 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 4, 4, 4, 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 18:50:25,068 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 18:50:25,256 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:25,257 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:25,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:25,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1604202664, now seen corresponding path program 1 times [2024-09-12 18:50:25,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:25,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865147339] [2024-09-12 18:50:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:25,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:25,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054091294] [2024-09-12 18:50:25,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:25,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:25,269 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 18:50:25,270 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 18:50:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:25,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:50:25,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 9 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:50:25,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 9 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 18:50:25,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:25,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865147339] [2024-09-12 18:50:25,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:25,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054091294] [2024-09-12 18:50:25,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054091294] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:25,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:50:25,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 18:50:25,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969290029] [2024-09-12 18:50:25,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:25,919 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:50:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:50:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:50:25,920 INFO L87 Difference]: Start difference. First operand 534 states and 667 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:50:27,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:27,834 INFO L93 Difference]: Finished difference Result 684 states and 874 transitions. [2024-09-12 18:50:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:50:27,834 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 102 [2024-09-12 18:50:27,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:27,837 INFO L225 Difference]: With dead ends: 684 [2024-09-12 18:50:27,837 INFO L226 Difference]: Without dead ends: 596 [2024-09-12 18:50:27,837 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:50:27,837 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 294 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:27,838 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 253 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:50:27,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-09-12 18:50:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 495. [2024-09-12 18:50:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 402 states have (on average 1.3208955223880596) internal successors, (531), 436 states have internal predecessors, (531), 47 states have call successors, (47), 14 states have call predecessors, (47), 13 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:50:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 622 transitions. [2024-09-12 18:50:28,013 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 622 transitions. Word has length 102 [2024-09-12 18:50:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:28,013 INFO L474 AbstractCegarLoop]: Abstraction has 495 states and 622 transitions. [2024-09-12 18:50:28,013 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2024-09-12 18:50:28,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 622 transitions. [2024-09-12 18:50:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:50:28,014 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:28,014 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:28,026 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 18:50:28,215 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 18:50:28,215 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:28,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:28,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1632430508, now seen corresponding path program 1 times [2024-09-12 18:50:28,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:28,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014521823] [2024-09-12 18:50:28,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:28,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:50:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:50:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:50:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:50:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:50:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:50:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:50:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:50:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:50:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:50:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:50:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,291 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:28,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014521823] [2024-09-12 18:50:28,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014521823] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:28,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312818329] [2024-09-12 18:50:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:28,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:28,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:28,293 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 18:50:28,294 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 18:50:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:28,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:50:28,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:28,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312818329] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:28,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:50:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-09-12 18:50:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51464639] [2024-09-12 18:50:28,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:28,623 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:50:28,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:28,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:50:28,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:28,624 INFO L87 Difference]: Start difference. First operand 495 states and 622 transitions. Second operand has 13 states, 12 states have (on average 13.75) internal successors, (165), 13 states have internal predecessors, (165), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2024-09-12 18:50:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:29,682 INFO L93 Difference]: Finished difference Result 820 states and 1006 transitions. [2024-09-12 18:50:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:50:29,682 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.75) internal successors, (165), 13 states have internal predecessors, (165), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) Word has length 107 [2024-09-12 18:50:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:29,685 INFO L225 Difference]: With dead ends: 820 [2024-09-12 18:50:29,685 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:50:29,685 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:50:29,686 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 1218 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:29,686 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 580 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:50:29,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:50:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 651. [2024-09-12 18:50:29,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 542 states have (on average 1.3653136531365313) internal successors, (740), 576 states have internal predecessors, (740), 63 states have call successors, (63), 14 states have call predecessors, (63), 13 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 18:50:29,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 863 transitions. [2024-09-12 18:50:29,934 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 863 transitions. Word has length 107 [2024-09-12 18:50:29,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:29,934 INFO L474 AbstractCegarLoop]: Abstraction has 651 states and 863 transitions. [2024-09-12 18:50:29,934 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.75) internal successors, (165), 13 states have internal predecessors, (165), 11 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (30), 11 states have call predecessors, (30), 11 states have call successors, (30) [2024-09-12 18:50:29,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 863 transitions. [2024-09-12 18:50:29,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:50:29,934 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:29,935 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:29,946 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 18:50:30,135 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:30,135 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:30,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash -536561748, now seen corresponding path program 1 times [2024-09-12 18:50:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:30,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334481130] [2024-09-12 18:50:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:50:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:50:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:50:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:50:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:50:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:50:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:50:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:50:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:50:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:50:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:50:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:30,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:30,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334481130] [2024-09-12 18:50:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334481130] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:30,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782057854] [2024-09-12 18:50:30,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:30,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:30,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:30,205 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 18:50:30,206 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 18:50:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:30,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:50:30,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:30,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782057854] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:30,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:50:30,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 18:50:30,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428867249] [2024-09-12 18:50:30,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:30,480 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:50:30,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:30,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:50:30,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:50:30,480 INFO L87 Difference]: Start difference. First operand 651 states and 863 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 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 18:50:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:31,590 INFO L93 Difference]: Finished difference Result 978 states and 1277 transitions. [2024-09-12 18:50:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 18:50:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 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 18:50:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:31,594 INFO L225 Difference]: With dead ends: 978 [2024-09-12 18:50:31,594 INFO L226 Difference]: Without dead ends: 977 [2024-09-12 18:50:31,595 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=572, Invalid=1498, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:50:31,595 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 1327 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:31,595 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 529 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:31,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-09-12 18:50:31,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 787. [2024-09-12 18:50:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 664 states have (on average 1.3810240963855422) internal successors, (917), 698 states have internal predecessors, (917), 77 states have call successors, (77), 14 states have call predecessors, (77), 13 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-09-12 18:50:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1068 transitions. [2024-09-12 18:50:31,950 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1068 transitions. Word has length 107 [2024-09-12 18:50:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:31,951 INFO L474 AbstractCegarLoop]: Abstraction has 787 states and 1068 transitions. [2024-09-12 18:50:31,954 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 14 states have internal predecessors, (166), 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 18:50:31,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1068 transitions. [2024-09-12 18:50:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:50:31,955 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:31,955 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:31,968 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 18:50:32,155 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:32,155 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:32,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash -933830717, now seen corresponding path program 1 times [2024-09-12 18:50:32,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:32,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224700824] [2024-09-12 18:50:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:50:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:50:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:50:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:50:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:50:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:50:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,222 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:50:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,224 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:50:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:50:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:50:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:50:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:32,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224700824] [2024-09-12 18:50:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224700824] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520485963] [2024-09-12 18:50:32,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:32,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:32,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:32,234 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 18:50:32,235 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 18:50:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:32,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:50:32,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:32,401 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:32,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:32,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520485963] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:32,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:50:32,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-12 18:50:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717412833] [2024-09-12 18:50:32,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:32,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:50:32,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:32,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:50:32,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:32,501 INFO L87 Difference]: Start difference. First operand 787 states and 1068 transitions. Second operand has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:50:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:33,543 INFO L93 Difference]: Finished difference Result 1303 states and 1809 transitions. [2024-09-12 18:50:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:50:33,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 108 [2024-09-12 18:50:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:33,547 INFO L225 Difference]: With dead ends: 1303 [2024-09-12 18:50:33,547 INFO L226 Difference]: Without dead ends: 1301 [2024-09-12 18:50:33,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:50:33,548 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 181 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:33,548 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 343 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:33,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-09-12 18:50:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1137. [2024-09-12 18:50:34,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 980 states have (on average 1.376530612244898) internal successors, (1349), 1014 states have internal predecessors, (1349), 111 states have call successors, (111), 14 states have call predecessors, (111), 13 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-09-12 18:50:34,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1568 transitions. [2024-09-12 18:50:34,019 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1568 transitions. Word has length 108 [2024-09-12 18:50:34,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:34,020 INFO L474 AbstractCegarLoop]: Abstraction has 1137 states and 1568 transitions. [2024-09-12 18:50:34,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.571428571428573) internal successors, (165), 8 states have internal predecessors, (165), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:50:34,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:34,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1568 transitions. [2024-09-12 18:50:34,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:50:34,020 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:34,021 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:34,032 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 18:50:34,224 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:50:34,224 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:34,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:34,225 INFO L85 PathProgramCache]: Analyzing trace with hash 743196851, now seen corresponding path program 1 times [2024-09-12 18:50:34,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:34,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407826875] [2024-09-12 18:50:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:34,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:50:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:50:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:50:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:50:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:50:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:50:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:50:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:50:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:50:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:50:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:50:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,291 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:34,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:34,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407826875] [2024-09-12 18:50:34,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407826875] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:34,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858411364] [2024-09-12 18:50:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:34,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:34,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:34,293 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 18:50:34,294 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 18:50:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:34,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:50:34,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:34,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:34,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858411364] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:34,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:50:34,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-12 18:50:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723377752] [2024-09-12 18:50:34,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:34,547 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:50:34,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:34,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:50:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:34,547 INFO L87 Difference]: Start difference. First operand 1137 states and 1568 transitions. Second operand has 8 states, 7 states have (on average 24.428571428571427) internal successors, (171), 8 states have internal predecessors, (171), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:50:35,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:35,746 INFO L93 Difference]: Finished difference Result 1583 states and 2188 transitions. [2024-09-12 18:50:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:50:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.428571428571427) internal successors, (171), 8 states have internal predecessors, (171), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 110 [2024-09-12 18:50:35,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:35,751 INFO L225 Difference]: With dead ends: 1583 [2024-09-12 18:50:35,751 INFO L226 Difference]: Without dead ends: 1581 [2024-09-12 18:50:35,751 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:50:35,752 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 171 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:35,752 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 368 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-09-12 18:50:36,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1365. [2024-09-12 18:50:36,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1187 states have (on average 1.3689974726200504) internal successors, (1625), 1221 states have internal predecessors, (1625), 132 states have call successors, (132), 14 states have call predecessors, (132), 13 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-09-12 18:50:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1886 transitions. [2024-09-12 18:50:36,421 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1886 transitions. Word has length 110 [2024-09-12 18:50:36,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:36,421 INFO L474 AbstractCegarLoop]: Abstraction has 1365 states and 1886 transitions. [2024-09-12 18:50:36,421 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.428571428571427) internal successors, (171), 8 states have internal predecessors, (171), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:50:36,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1886 transitions. [2024-09-12 18:50:36,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 18:50:36,422 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:36,422 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-09-12 18:50:36,435 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 18:50:36,626 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:50:36,627 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:36,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash 314722994, now seen corresponding path program 1 times [2024-09-12 18:50:36,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:36,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054808071] [2024-09-12 18:50:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:36,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:36,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861518825] [2024-09-12 18:50:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:36,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:36,643 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 18:50:36,644 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 18:50:36,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:36,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:50:36,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:36,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:36,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:36,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054808071] [2024-09-12 18:50:36,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:36,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861518825] [2024-09-12 18:50:36,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861518825] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:36,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:36,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:50:36,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827605538] [2024-09-12 18:50:36,997 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:36,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:50:36,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:36,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:50:36,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:36,997 INFO L87 Difference]: Start difference. First operand 1365 states and 1886 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:38,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:38,137 INFO L93 Difference]: Finished difference Result 1504 states and 2082 transitions. [2024-09-12 18:50:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:50:38,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-09-12 18:50:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:38,143 INFO L225 Difference]: With dead ends: 1504 [2024-09-12 18:50:38,144 INFO L226 Difference]: Without dead ends: 1500 [2024-09-12 18:50:38,144 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:50:38,145 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 144 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:38,145 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 358 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-09-12 18:50:38,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1361. [2024-09-12 18:50:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1187 states have (on average 1.3150800336983994) internal successors, (1561), 1217 states have internal predecessors, (1561), 132 states have call successors, (132), 14 states have call predecessors, (132), 13 states have return successors, (129), 129 states have call predecessors, (129), 129 states have call successors, (129) [2024-09-12 18:50:38,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1822 transitions. [2024-09-12 18:50:38,818 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1822 transitions. Word has length 113 [2024-09-12 18:50:38,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:38,818 INFO L474 AbstractCegarLoop]: Abstraction has 1361 states and 1822 transitions. [2024-09-12 18:50:38,818 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:38,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:38,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1822 transitions. [2024-09-12 18:50:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:50:38,819 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:38,819 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:38,831 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 18:50:39,020 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:50:39,021 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:39,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:39,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1166478284, now seen corresponding path program 1 times [2024-09-12 18:50:39,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:39,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933833185] [2024-09-12 18:50:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:39,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:39,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490012189] [2024-09-12 18:50:39,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:39,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:39,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:39,039 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 18:50:39,040 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 18:50:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:39,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:50:39,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:39,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:39,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933833185] [2024-09-12 18:50:39,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490012189] [2024-09-12 18:50:39,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490012189] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:39,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:39,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:50:39,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774608837] [2024-09-12 18:50:39,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:39,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:50:39,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:50:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:39,695 INFO L87 Difference]: Start difference. First operand 1361 states and 1822 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:40,747 INFO L93 Difference]: Finished difference Result 1402 states and 1874 transitions. [2024-09-12 18:50:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:50:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 114 [2024-09-12 18:50:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:40,752 INFO L225 Difference]: With dead ends: 1402 [2024-09-12 18:50:40,752 INFO L226 Difference]: Without dead ends: 1400 [2024-09-12 18:50:40,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:40,753 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 86 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:40,753 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 246 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-09-12 18:50:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2024-09-12 18:50:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1201 states have (on average 1.3139050791007494) internal successors, (1578), 1231 states have internal predecessors, (1578), 134 states have call successors, (134), 14 states have call predecessors, (134), 13 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-09-12 18:50:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1843 transitions. [2024-09-12 18:50:41,454 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1843 transitions. Word has length 114 [2024-09-12 18:50:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:41,455 INFO L474 AbstractCegarLoop]: Abstraction has 1377 states and 1843 transitions. [2024-09-12 18:50:41,455 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:41,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1843 transitions. [2024-09-12 18:50:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:50:41,455 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:41,456 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:41,467 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 18:50:41,656 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:41,656 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:41,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1246902860, now seen corresponding path program 2 times [2024-09-12 18:50:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503179448] [2024-09-12 18:50:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:41,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511894340] [2024-09-12 18:50:41,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:50:41,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:41,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:41,668 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 18:50:41,669 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 18:50:41,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:50:41,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:50:41,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:50:41,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:41,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:42,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503179448] [2024-09-12 18:50:42,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511894340] [2024-09-12 18:50:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511894340] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:42,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:42,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:50:42,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948649922] [2024-09-12 18:50:42,298 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:42,298 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:50:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:50:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:42,298 INFO L87 Difference]: Start difference. First operand 1377 states and 1843 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:43,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:43,361 INFO L93 Difference]: Finished difference Result 1421 states and 1896 transitions. [2024-09-12 18:50:43,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:50:43,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 114 [2024-09-12 18:50:43,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:43,366 INFO L225 Difference]: With dead ends: 1421 [2024-09-12 18:50:43,366 INFO L226 Difference]: Without dead ends: 1419 [2024-09-12 18:50:43,366 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:50:43,367 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 81 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:43,367 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 235 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:50:43,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-09-12 18:50:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1393. [2024-09-12 18:50:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1215 states have (on average 1.311934156378601) internal successors, (1594), 1245 states have internal predecessors, (1594), 136 states have call successors, (136), 14 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:50:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1863 transitions. [2024-09-12 18:50:43,992 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1863 transitions. Word has length 114 [2024-09-12 18:50:43,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:43,992 INFO L474 AbstractCegarLoop]: Abstraction has 1393 states and 1863 transitions. [2024-09-12 18:50:43,992 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:43,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:43,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1863 transitions. [2024-09-12 18:50:43,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:50:43,993 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:43,993 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:44,005 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 18:50:44,193 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:50:44,194 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:44,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash -831282, now seen corresponding path program 1 times [2024-09-12 18:50:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:44,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772688239] [2024-09-12 18:50:44,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:44,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:44,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951207944] [2024-09-12 18:50:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:44,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:44,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:44,208 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 18:50:44,209 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 18:50:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:44,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:50:44,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:44,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:45,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:45,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772688239] [2024-09-12 18:50:45,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:45,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951207944] [2024-09-12 18:50:45,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951207944] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:45,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:45,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:50:45,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993144735] [2024-09-12 18:50:45,135 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:45,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:50:45,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:50:45,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:50:45,135 INFO L87 Difference]: Start difference. First operand 1393 states and 1863 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:46,113 INFO L93 Difference]: Finished difference Result 1407 states and 1879 transitions. [2024-09-12 18:50:46,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:50:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2024-09-12 18:50:46,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:46,118 INFO L225 Difference]: With dead ends: 1407 [2024-09-12 18:50:46,118 INFO L226 Difference]: Without dead ends: 1405 [2024-09-12 18:50:46,119 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:50:46,119 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 55 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:46,119 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 272 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:50:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-09-12 18:50:46,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1393. [2024-09-12 18:50:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1215 states have (on average 1.3102880658436213) internal successors, (1592), 1245 states have internal predecessors, (1592), 136 states have call successors, (136), 14 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:50:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1861 transitions. [2024-09-12 18:50:46,843 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1861 transitions. Word has length 116 [2024-09-12 18:50:46,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:46,844 INFO L474 AbstractCegarLoop]: Abstraction has 1393 states and 1861 transitions. [2024-09-12 18:50:46,844 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:50:46,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1861 transitions. [2024-09-12 18:50:46,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:50:46,844 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:46,844 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:46,855 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 18:50:47,045 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:47,045 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:47,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash -22225074, now seen corresponding path program 2 times [2024-09-12 18:50:47,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:47,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556394802] [2024-09-12 18:50:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:47,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060901967] [2024-09-12 18:50:47,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:50:47,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:47,059 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 18:50:47,061 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 18:50:47,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:50:47,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:50:47,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:50:47,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:47,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:48,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:48,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556394802] [2024-09-12 18:50:48,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:48,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060901967] [2024-09-12 18:50:48,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060901967] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:50:48,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:50:48,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-09-12 18:50:48,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129644529] [2024-09-12 18:50:48,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:50:48,576 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:50:48,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:48,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:50:48,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:50:48,576 INFO L87 Difference]: Start difference. First operand 1393 states and 1861 transitions. Second operand has 9 states, 8 states have (on average 16.125) internal successors, (129), 9 states have internal predecessors, (129), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:50:55,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:55,163 INFO L93 Difference]: Finished difference Result 1443 states and 1921 transitions. [2024-09-12 18:50:55,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:50:55,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.125) internal successors, (129), 9 states have internal predecessors, (129), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 116 [2024-09-12 18:50:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:55,167 INFO L225 Difference]: With dead ends: 1443 [2024-09-12 18:50:55,167 INFO L226 Difference]: Without dead ends: 1441 [2024-09-12 18:50:55,168 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:50:55,168 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 283 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:55,168 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 400 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-09-12 18:50:55,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-09-12 18:50:55,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1403. [2024-09-12 18:50:55,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1226 states have (on average 1.3050570962479608) internal successors, (1600), 1255 states have internal predecessors, (1600), 136 states have call successors, (136), 14 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:50:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1869 transitions. [2024-09-12 18:50:55,818 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1869 transitions. Word has length 116 [2024-09-12 18:50:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:50:55,818 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1869 transitions. [2024-09-12 18:50:55,819 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.125) internal successors, (129), 9 states have internal predecessors, (129), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2024-09-12 18:50:55,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1869 transitions. [2024-09-12 18:50:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:50:55,820 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:50:55,820 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:50:55,831 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:50:56,020 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:56,021 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:50:56,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:50:56,021 INFO L85 PathProgramCache]: Analyzing trace with hash -25769674, now seen corresponding path program 1 times [2024-09-12 18:50:56,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:50:56,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889521607] [2024-09-12 18:50:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:56,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:50:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:50:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639853055] [2024-09-12 18:50:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:50:56,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:50:56,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:50:56,033 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:50:56,035 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-09-12 18:50:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:50:56,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:50:56,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:50:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:50:56,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:50:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 18:50:57,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:50:57,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889521607] [2024-09-12 18:50:57,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:50:57,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639853055] [2024-09-12 18:50:57,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639853055] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:50:57,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:50:57,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:50:57,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549678863] [2024-09-12 18:50:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:50:57,145 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:50:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:50:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:50:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:50:57,146 INFO L87 Difference]: Start difference. First operand 1403 states and 1869 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:50:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:50:59,581 INFO L93 Difference]: Finished difference Result 1403 states and 1869 transitions. [2024-09-12 18:50:59,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:50:59,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 117 [2024-09-12 18:50:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:50:59,585 INFO L225 Difference]: With dead ends: 1403 [2024-09-12 18:50:59,585 INFO L226 Difference]: Without dead ends: 1402 [2024-09-12 18:50:59,585 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:50:59,586 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:50:59,586 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 151 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:50:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-09-12 18:51:00,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2024-09-12 18:51:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1226 states have (on average 1.2805872756933117) internal successors, (1570), 1254 states have internal predecessors, (1570), 136 states have call successors, (136), 14 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:51:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1839 transitions. [2024-09-12 18:51:00,274 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1839 transitions. Word has length 117 [2024-09-12 18:51:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:00,274 INFO L474 AbstractCegarLoop]: Abstraction has 1402 states and 1839 transitions. [2024-09-12 18:51:00,274 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:51:00,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1839 transitions. [2024-09-12 18:51:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:51:00,275 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:00,275 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:00,290 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-09-12 18:51:00,476 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:00,476 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:00,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:00,476 INFO L85 PathProgramCache]: Analyzing trace with hash -887453594, now seen corresponding path program 1 times [2024-09-12 18:51:00,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:00,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193130286] [2024-09-12 18:51:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,532 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,537 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:51:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:51:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:51:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:51:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:00,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193130286] [2024-09-12 18:51:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193130286] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176018332] [2024-09-12 18:51:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:00,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:00,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:00,556 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:00,558 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-09-12 18:51:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:00,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:51:00,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:00,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:00,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176018332] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:00,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:51:00,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 18:51:00,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199713664] [2024-09-12 18:51:00,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:00,715 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:51:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:00,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:51:00,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:00,716 INFO L87 Difference]: Start difference. First operand 1402 states and 1839 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:51:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:02,168 INFO L93 Difference]: Finished difference Result 1408 states and 1845 transitions. [2024-09-12 18:51:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:51:02,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 118 [2024-09-12 18:51:02,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:02,172 INFO L225 Difference]: With dead ends: 1408 [2024-09-12 18:51:02,172 INFO L226 Difference]: Without dead ends: 1405 [2024-09-12 18:51:02,172 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:51:02,173 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 110 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:02,173 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 159 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:51:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-09-12 18:51:02,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1403. [2024-09-12 18:51:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1228 states have (on average 1.2760586319218241) internal successors, (1567), 1254 states have internal predecessors, (1567), 136 states have call successors, (136), 15 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:51:02,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1836 transitions. [2024-09-12 18:51:02,893 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1836 transitions. Word has length 118 [2024-09-12 18:51:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:02,893 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1836 transitions. [2024-09-12 18:51:02,894 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:51:02,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1836 transitions. [2024-09-12 18:51:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:51:02,894 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:02,894 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:02,907 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:03,095 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:03,095 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:03,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash -798859824, now seen corresponding path program 1 times [2024-09-12 18:51:03,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:03,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540533644] [2024-09-12 18:51:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:03,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005956088] [2024-09-12 18:51:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:03,109 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:03,110 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-09-12 18:51:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:03,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:51:03,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:03,434 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:51:03,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-09-12 18:51:03,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:03,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540533644] [2024-09-12 18:51:03,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:03,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005956088] [2024-09-12 18:51:03,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005956088] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:03,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:03,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:51:03,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895757296] [2024-09-12 18:51:03,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:03,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:03,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:03,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:03,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:51:03,979 INFO L87 Difference]: Start difference. First operand 1403 states and 1836 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:51:06,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:06,715 INFO L93 Difference]: Finished difference Result 1403 states and 1836 transitions. [2024-09-12 18:51:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:51:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2024-09-12 18:51:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:06,718 INFO L225 Difference]: With dead ends: 1403 [2024-09-12 18:51:06,718 INFO L226 Difference]: Without dead ends: 1400 [2024-09-12 18:51:06,719 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:06,719 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:06,719 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 151 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:51:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-09-12 18:51:07,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1400. [2024-09-12 18:51:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1228 states have (on average 1.248371335504886) internal successors, (1533), 1251 states have internal predecessors, (1533), 136 states have call successors, (136), 15 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:51:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1802 transitions. [2024-09-12 18:51:07,474 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1802 transitions. Word has length 118 [2024-09-12 18:51:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:07,474 INFO L474 AbstractCegarLoop]: Abstraction has 1400 states and 1802 transitions. [2024-09-12 18:51:07,474 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:51:07,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1802 transitions. [2024-09-12 18:51:07,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:51:07,475 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:07,475 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:07,487 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-09-12 18:51:07,675 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:07,675 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:07,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:07,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1741257482, now seen corresponding path program 1 times [2024-09-12 18:51:07,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:07,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484658465] [2024-09-12 18:51:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:07,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:51:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:51:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:51:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:51:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-09-12 18:51:07,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:07,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484658465] [2024-09-12 18:51:07,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484658465] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:07,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:07,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:07,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098439661] [2024-09-12 18:51:07,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:07,742 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:51:07,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:07,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:51:07,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:51:07,743 INFO L87 Difference]: Start difference. First operand 1400 states and 1802 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:51:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:09,417 INFO L93 Difference]: Finished difference Result 1402 states and 1802 transitions. [2024-09-12 18:51:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:51:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 119 [2024-09-12 18:51:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:09,420 INFO L225 Difference]: With dead ends: 1402 [2024-09-12 18:51:09,420 INFO L226 Difference]: Without dead ends: 1401 [2024-09-12 18:51:09,420 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:09,421 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 121 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:09,421 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 214 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:51:09,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-09-12 18:51:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1399. [2024-09-12 18:51:10,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1228 states have (on average 1.244299674267101) internal successors, (1528), 1250 states have internal predecessors, (1528), 136 states have call successors, (136), 15 states have call predecessors, (136), 13 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2024-09-12 18:51:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1797 transitions. [2024-09-12 18:51:10,205 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1797 transitions. Word has length 119 [2024-09-12 18:51:10,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:10,206 INFO L474 AbstractCegarLoop]: Abstraction has 1399 states and 1797 transitions. [2024-09-12 18:51:10,206 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:51:10,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1797 transitions. [2024-09-12 18:51:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 18:51:10,206 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:10,206 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 18:51:10,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-09-12 18:51:10,207 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:10,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:10,207 INFO L85 PathProgramCache]: Analyzing trace with hash -104559812, now seen corresponding path program 1 times [2024-09-12 18:51:10,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:10,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57467971] [2024-09-12 18:51:10,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:10,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:10,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063525174] [2024-09-12 18:51:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:10,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:10,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:10,216 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:10,217 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-09-12 18:51:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:10,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:51:10,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 12 proven. 40 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 18:51:10,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 18:51:10,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:10,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57467971] [2024-09-12 18:51:10,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:10,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063525174] [2024-09-12 18:51:10,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063525174] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:10,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:10,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11 [2024-09-12 18:51:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290508853] [2024-09-12 18:51:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:10,688 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:51:10,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:10,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:51:10,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:10,689 INFO L87 Difference]: Start difference. First operand 1399 states and 1797 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:51:13,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:51:14,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:14,705 INFO L93 Difference]: Finished difference Result 1405 states and 1802 transitions. [2024-09-12 18:51:14,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:51:14,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 122 [2024-09-12 18:51:14,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:14,709 INFO L225 Difference]: With dead ends: 1405 [2024-09-12 18:51:14,709 INFO L226 Difference]: Without dead ends: 1392 [2024-09-12 18:51:14,709 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:51:14,710 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 164 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:14,710 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 221 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:51:14,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-09-12 18:51:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1388. [2024-09-12 18:51:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1220 states have (on average 1.2418032786885247) internal successors, (1515), 1239 states have internal predecessors, (1515), 134 states have call successors, (134), 16 states have call predecessors, (134), 14 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-09-12 18:51:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1781 transitions. [2024-09-12 18:51:15,541 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1781 transitions. Word has length 122 [2024-09-12 18:51:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:15,541 INFO L474 AbstractCegarLoop]: Abstraction has 1388 states and 1781 transitions. [2024-09-12 18:51:15,541 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:51:15,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1781 transitions. [2024-09-12 18:51:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:51:15,542 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:15,542 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:15,554 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-09-12 18:51:15,742 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:51:15,742 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:15,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -548908454, now seen corresponding path program 1 times [2024-09-12 18:51:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601604268] [2024-09-12 18:51:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:51:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:51:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:51:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:51:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:15,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:15,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601604268] [2024-09-12 18:51:15,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601604268] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:15,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063622150] [2024-09-12 18:51:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:15,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:15,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:15,890 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:15,891 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:51:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:51:15,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:15,990 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:15,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 33 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-09-12 18:51:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063622150] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:16,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:51:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-09-12 18:51:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757635037] [2024-09-12 18:51:16,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:16,085 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:51:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:51:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:16,086 INFO L87 Difference]: Start difference. First operand 1388 states and 1781 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:51:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:17,230 INFO L93 Difference]: Finished difference Result 1398 states and 1789 transitions. [2024-09-12 18:51:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:51:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2024-09-12 18:51:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:17,233 INFO L225 Difference]: With dead ends: 1398 [2024-09-12 18:51:17,233 INFO L226 Difference]: Without dead ends: 1384 [2024-09-12 18:51:17,234 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 266 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:51:17,234 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 61 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:17,234 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 158 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:51:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-09-12 18:51:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1382. [2024-09-12 18:51:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1214 states have (on average 1.2388797364085666) internal successors, (1504), 1233 states have internal predecessors, (1504), 132 states have call successors, (132), 17 states have call predecessors, (132), 16 states have return successors, (131), 131 states have call predecessors, (131), 131 states have call successors, (131) [2024-09-12 18:51:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1767 transitions. [2024-09-12 18:51:18,051 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1767 transitions. Word has length 123 [2024-09-12 18:51:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:18,051 INFO L474 AbstractCegarLoop]: Abstraction has 1382 states and 1767 transitions. [2024-09-12 18:51:18,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 18:51:18,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1767 transitions. [2024-09-12 18:51:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:51:18,052 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:18,052 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:18,064 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:18,252 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:51:18,253 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:18,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:18,253 INFO L85 PathProgramCache]: Analyzing trace with hash 986291800, now seen corresponding path program 2 times [2024-09-12 18:51:18,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45937364] [2024-09-12 18:51:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:18,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563320009] [2024-09-12 18:51:18,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:51:18,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:18,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:18,265 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:18,266 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:51:18,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:51:18,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:51:18,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:51:18,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 18:51:18,622 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:18,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45937364] [2024-09-12 18:51:18,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563320009] [2024-09-12 18:51:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563320009] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:18,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:18,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:51:18,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369242239] [2024-09-12 18:51:18,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:18,679 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:51:18,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:51:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:18,680 INFO L87 Difference]: Start difference. First operand 1382 states and 1767 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:51:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:19,963 INFO L93 Difference]: Finished difference Result 1655 states and 2118 transitions. [2024-09-12 18:51:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:51:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 124 [2024-09-12 18:51:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:19,967 INFO L225 Difference]: With dead ends: 1655 [2024-09-12 18:51:19,967 INFO L226 Difference]: Without dead ends: 1653 [2024-09-12 18:51:19,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:19,967 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 234 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:19,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 369 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:51:19,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-09-12 18:51:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1442. [2024-09-12 18:51:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1268 states have (on average 1.2421135646687698) internal successors, (1575), 1287 states have internal predecessors, (1575), 138 states have call successors, (138), 17 states have call predecessors, (138), 16 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-09-12 18:51:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1850 transitions. [2024-09-12 18:51:20,853 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1850 transitions. Word has length 124 [2024-09-12 18:51:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:20,854 INFO L474 AbstractCegarLoop]: Abstraction has 1442 states and 1850 transitions. [2024-09-12 18:51:20,854 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:51:20,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1850 transitions. [2024-09-12 18:51:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 18:51:20,855 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:20,855 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 18:51:20,866 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:21,055 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-09-12 18:51:21,055 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:21,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash 875690787, now seen corresponding path program 1 times [2024-09-12 18:51:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791190460] [2024-09-12 18:51:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:21,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572001200] [2024-09-12 18:51:21,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:21,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:21,066 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:21,066 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:51:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:51:21,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 18:51:21,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:21,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:21,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791190460] [2024-09-12 18:51:21,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:21,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572001200] [2024-09-12 18:51:21,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572001200] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:21,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:21,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:51:21,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733288270] [2024-09-12 18:51:21,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:21,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:51:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:21,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:51:21,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:51:21,973 INFO L87 Difference]: Start difference. First operand 1442 states and 1850 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:51:23,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:23,400 INFO L93 Difference]: Finished difference Result 1504 states and 1926 transitions. [2024-09-12 18:51:23,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:51:23,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 127 [2024-09-12 18:51:23,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:23,404 INFO L225 Difference]: With dead ends: 1504 [2024-09-12 18:51:23,404 INFO L226 Difference]: Without dead ends: 1503 [2024-09-12 18:51:23,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:51:23,404 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 181 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:23,404 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 554 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:51:23,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-09-12 18:51:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1442. [2024-09-12 18:51:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1268 states have (on average 1.2413249211356467) internal successors, (1574), 1287 states have internal predecessors, (1574), 138 states have call successors, (138), 17 states have call predecessors, (138), 16 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-09-12 18:51:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1849 transitions. [2024-09-12 18:51:24,282 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1849 transitions. Word has length 127 [2024-09-12 18:51:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:24,282 INFO L474 AbstractCegarLoop]: Abstraction has 1442 states and 1849 transitions. [2024-09-12 18:51:24,282 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:51:24,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1849 transitions. [2024-09-12 18:51:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 18:51:24,283 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:24,283 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:51:24,298 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:24,483 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:24,484 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:24,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1376610702, now seen corresponding path program 1 times [2024-09-12 18:51:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:24,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94503413] [2024-09-12 18:51:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:24,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858936604] [2024-09-12 18:51:24,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:24,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:24,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:24,494 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:24,494 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:51:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:24,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:51:24,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 18 proven. 59 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-12 18:51:25,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 15 proven. 53 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-09-12 18:51:27,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94503413] [2024-09-12 18:51:27,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858936604] [2024-09-12 18:51:27,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858936604] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:27,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:51:27,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2024-09-12 18:51:27,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995983059] [2024-09-12 18:51:27,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:27,850 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:51:27,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:27,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:51:27,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:51:27,851 INFO L87 Difference]: Start difference. First operand 1442 states and 1849 transitions. Second operand has 25 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 8 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 10 states have call predecessors, (22), 8 states have call successors, (22) [2024-09-12 18:51:37,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:37,596 INFO L93 Difference]: Finished difference Result 1504 states and 1929 transitions. [2024-09-12 18:51:37,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 18:51:37,597 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 8 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 10 states have call predecessors, (22), 8 states have call successors, (22) Word has length 128 [2024-09-12 18:51:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:37,599 INFO L225 Difference]: With dead ends: 1504 [2024-09-12 18:51:37,600 INFO L226 Difference]: Without dead ends: 1494 [2024-09-12 18:51:37,600 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=543, Invalid=2213, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:51:37,600 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 508 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:37,600 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 383 Invalid, 2354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-09-12 18:51:37,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2024-09-12 18:51:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1432. [2024-09-12 18:51:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1261 states have (on average 1.2268041237113403) internal successors, (1547), 1278 states have internal predecessors, (1547), 137 states have call successors, (137), 17 states have call predecessors, (137), 16 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2024-09-12 18:51:38,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1820 transitions. [2024-09-12 18:51:38,716 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1820 transitions. Word has length 128 [2024-09-12 18:51:38,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:38,716 INFO L474 AbstractCegarLoop]: Abstraction has 1432 states and 1820 transitions. [2024-09-12 18:51:38,716 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.291666666666667) internal successors, (151), 24 states have internal predecessors, (151), 8 states have call successors, (22), 1 states have call predecessors, (22), 3 states have return successors, (22), 10 states have call predecessors, (22), 8 states have call successors, (22) [2024-09-12 18:51:38,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1820 transitions. [2024-09-12 18:51:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 18:51:38,717 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:38,717 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 18:51:38,728 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:38,917 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:38,917 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:38,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:38,917 INFO L85 PathProgramCache]: Analyzing trace with hash 305429551, now seen corresponding path program 2 times [2024-09-12 18:51:38,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:38,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120884213] [2024-09-12 18:51:38,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:38,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159629631] [2024-09-12 18:51:38,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:51:38,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:38,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:38,928 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:38,930 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-09-12 18:51:39,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:51:39,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:51:39,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 18:51:39,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 20 proven. 57 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 18:51:39,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 14 proven. 54 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-09-12 18:51:40,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:40,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120884213] [2024-09-12 18:51:40,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:40,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159629631] [2024-09-12 18:51:40,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159629631] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:40,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:51:40,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 28 [2024-09-12 18:51:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159460298] [2024-09-12 18:51:40,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:40,565 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 18:51:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:40,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 18:51:40,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:51:40,566 INFO L87 Difference]: Start difference. First operand 1432 states and 1820 transitions. Second operand has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 25 states have internal predecessors, (153), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:51:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:47,870 INFO L93 Difference]: Finished difference Result 1643 states and 2077 transitions. [2024-09-12 18:51:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-09-12 18:51:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 25 states have internal predecessors, (153), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 133 [2024-09-12 18:51:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:47,874 INFO L225 Difference]: With dead ends: 1643 [2024-09-12 18:51:47,874 INFO L226 Difference]: Without dead ends: 1641 [2024-09-12 18:51:47,875 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=328, Invalid=1834, Unknown=0, NotChecked=0, Total=2162 [2024-09-12 18:51:47,875 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 420 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 3145 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:47,875 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 607 Invalid, 3223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3145 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-09-12 18:51:47,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2024-09-12 18:51:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1538. [2024-09-12 18:51:49,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1354 states have (on average 1.2267355982274741) internal successors, (1661), 1371 states have internal predecessors, (1661), 146 states have call successors, (146), 21 states have call predecessors, (146), 20 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:51:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 1952 transitions. [2024-09-12 18:51:49,091 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 1952 transitions. Word has length 133 [2024-09-12 18:51:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:49,091 INFO L474 AbstractCegarLoop]: Abstraction has 1538 states and 1952 transitions. [2024-09-12 18:51:49,091 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 25 states have internal predecessors, (153), 8 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:51:49,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:49,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 1952 transitions. [2024-09-12 18:51:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 18:51:49,092 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:49,092 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 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] [2024-09-12 18:51:49,098 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:49,292 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:49,292 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:49,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1251280543, now seen corresponding path program 3 times [2024-09-12 18:51:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:49,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941228840] [2024-09-12 18:51:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:49,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122922641] [2024-09-12 18:51:49,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:51:49,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:49,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:49,302 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:49,303 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-09-12 18:51:49,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:51:49,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:51:49,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:51:49,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:49,917 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 31 proven. 61 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-09-12 18:51:49,917 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 31 proven. 61 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-09-12 18:51:51,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:51,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941228840] [2024-09-12 18:51:51,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:51,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122922641] [2024-09-12 18:51:51,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122922641] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:51,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:51:51,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2024-09-12 18:51:51,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855152148] [2024-09-12 18:51:51,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:51,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:51:51,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:51,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:51:51,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:51:51,137 INFO L87 Difference]: Start difference. First operand 1538 states and 1952 transitions. Second operand has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:51:56,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:56,979 INFO L93 Difference]: Finished difference Result 1692 states and 2156 transitions. [2024-09-12 18:51:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:51:56,979 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 133 [2024-09-12 18:51:56,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:56,982 INFO L225 Difference]: With dead ends: 1692 [2024-09-12 18:51:56,982 INFO L226 Difference]: Without dead ends: 1690 [2024-09-12 18:51:56,983 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:51:56,983 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 239 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:56,983 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 391 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-09-12 18:51:56,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2024-09-12 18:51:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1548. [2024-09-12 18:51:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1362 states have (on average 1.224669603524229) internal successors, (1668), 1378 states have internal predecessors, (1668), 146 states have call successors, (146), 24 states have call predecessors, (146), 23 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:51:58,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1959 transitions. [2024-09-12 18:51:58,262 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1959 transitions. Word has length 133 [2024-09-12 18:51:58,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:58,262 INFO L474 AbstractCegarLoop]: Abstraction has 1548 states and 1959 transitions. [2024-09-12 18:51:58,262 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 9 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 18:51:58,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:58,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1959 transitions. [2024-09-12 18:51:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 18:51:58,263 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:58,263 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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] [2024-09-12 18:51:58,276 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:58,463 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:58,464 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:58,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1777829142, now seen corresponding path program 2 times [2024-09-12 18:51:58,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:58,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001769723] [2024-09-12 18:51:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:58,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:58,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283134711] [2024-09-12 18:51:58,472 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:51:58,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:58,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:58,474 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:51:58,475 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-09-12 18:51:58,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:51:58,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:51:58,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:51:58,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:51:58,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:59,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001769723] [2024-09-12 18:51:59,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283134711] [2024-09-12 18:51:59,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283134711] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:59,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:59,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:51:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823764259] [2024-09-12 18:51:59,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:59,810 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:51:59,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:51:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:59,810 INFO L87 Difference]: Start difference. First operand 1548 states and 1959 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:52:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:01,724 INFO L93 Difference]: Finished difference Result 1810 states and 2283 transitions. [2024-09-12 18:52:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 135 [2024-09-12 18:52:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:01,728 INFO L225 Difference]: With dead ends: 1810 [2024-09-12 18:52:01,728 INFO L226 Difference]: Without dead ends: 1808 [2024-09-12 18:52:01,729 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:01,729 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 220 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:01,729 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 322 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2024-09-12 18:52:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1630. [2024-09-12 18:52:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1435 states have (on average 1.2229965156794425) internal successors, (1755), 1451 states have internal predecessors, (1755), 155 states have call successors, (155), 24 states have call predecessors, (155), 23 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-09-12 18:52:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2064 transitions. [2024-09-12 18:52:03,130 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2064 transitions. Word has length 135 [2024-09-12 18:52:03,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:03,130 INFO L474 AbstractCegarLoop]: Abstraction has 1630 states and 2064 transitions. [2024-09-12 18:52:03,130 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:52:03,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2064 transitions. [2024-09-12 18:52:03,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-09-12 18:52:03,131 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:03,131 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 18:52:03,142 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-09-12 18:52:03,331 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:03,331 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:03,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash 214672082, now seen corresponding path program 1 times [2024-09-12 18:52:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:03,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364650387] [2024-09-12 18:52:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:03,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239264231] [2024-09-12 18:52:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:03,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:03,342 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:03,343 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:52:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:52:03,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:52:03,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:04,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:04,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364650387] [2024-09-12 18:52:04,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:04,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239264231] [2024-09-12 18:52:04,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239264231] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:04,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:04,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:52:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976722877] [2024-09-12 18:52:04,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:04,296 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:04,297 INFO L87 Difference]: Start difference. First operand 1630 states and 2064 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:52:06,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:06,155 INFO L93 Difference]: Finished difference Result 1704 states and 2152 transitions. [2024-09-12 18:52:06,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:52:06,155 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-09-12 18:52:06,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:06,158 INFO L225 Difference]: With dead ends: 1704 [2024-09-12 18:52:06,158 INFO L226 Difference]: Without dead ends: 1703 [2024-09-12 18:52:06,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:06,159 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 150 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:06,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 495 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-09-12 18:52:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1630. [2024-09-12 18:52:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1435 states have (on average 1.2222996515679443) internal successors, (1754), 1451 states have internal predecessors, (1754), 155 states have call successors, (155), 24 states have call predecessors, (155), 23 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-09-12 18:52:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2063 transitions. [2024-09-12 18:52:07,545 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2063 transitions. Word has length 138 [2024-09-12 18:52:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:07,545 INFO L474 AbstractCegarLoop]: Abstraction has 1630 states and 2063 transitions. [2024-09-12 18:52:07,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 18:52:07,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2063 transitions. [2024-09-12 18:52:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 18:52:07,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:07,546 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 18:52:07,558 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-09-12 18:52:07,746 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2024-09-12 18:52:07,747 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:07,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1935099956, now seen corresponding path program 1 times [2024-09-12 18:52:07,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:07,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635216820] [2024-09-12 18:52:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:07,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534360066] [2024-09-12 18:52:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:07,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:07,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:07,762 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:07,763 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:52:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:07,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:52:07,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 24 proven. 40 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 18:52:08,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:08,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:08,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635216820] [2024-09-12 18:52:08,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:08,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534360066] [2024-09-12 18:52:08,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534360066] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:08,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:08,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:52:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330410043] [2024-09-12 18:52:08,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:08,293 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:52:08,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:52:08,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:08,294 INFO L87 Difference]: Start difference. First operand 1630 states and 2063 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 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 18:52:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:10,490 INFO L93 Difference]: Finished difference Result 1699 states and 2134 transitions. [2024-09-12 18:52:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:52:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 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 139 [2024-09-12 18:52:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:10,494 INFO L225 Difference]: With dead ends: 1699 [2024-09-12 18:52:10,494 INFO L226 Difference]: Without dead ends: 1647 [2024-09-12 18:52:10,494 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:52:10,494 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 257 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:10,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 358 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2024-09-12 18:52:11,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1503. [2024-09-12 18:52:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1325 states have (on average 1.2105660377358491) internal successors, (1604), 1338 states have internal predecessors, (1604), 141 states have call successors, (141), 24 states have call predecessors, (141), 23 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-09-12 18:52:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1885 transitions. [2024-09-12 18:52:11,761 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1885 transitions. Word has length 139 [2024-09-12 18:52:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:11,761 INFO L474 AbstractCegarLoop]: Abstraction has 1503 states and 1885 transitions. [2024-09-12 18:52:11,761 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 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 18:52:11,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1885 transitions. [2024-09-12 18:52:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 18:52:11,762 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:11,762 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:11,774 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-09-12 18:52:11,962 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:11,962 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:11,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1865279560, now seen corresponding path program 1 times [2024-09-12 18:52:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:11,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310852766] [2024-09-12 18:52:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:11,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,046 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:52:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,048 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:52:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:52:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:12,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310852766] [2024-09-12 18:52:12,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310852766] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963680154] [2024-09-12 18:52:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:12,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:12,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:12,055 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:12,055 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:52:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:12,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:12,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:12,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963680154] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:12,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:12,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:52:12,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071357799] [2024-09-12 18:52:12,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:12,370 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:12,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:12,370 INFO L87 Difference]: Start difference. First operand 1503 states and 1885 transitions. Second operand has 11 states, 10 states have (on average 24.9) internal successors, (249), 11 states have internal predecessors, (249), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-09-12 18:52:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:14,655 INFO L93 Difference]: Finished difference Result 1960 states and 2445 transitions. [2024-09-12 18:52:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:14,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.9) internal successors, (249), 11 states have internal predecessors, (249), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 151 [2024-09-12 18:52:14,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:14,660 INFO L225 Difference]: With dead ends: 1960 [2024-09-12 18:52:14,660 INFO L226 Difference]: Without dead ends: 1958 [2024-09-12 18:52:14,660 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:52:14,660 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 219 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:14,660 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 512 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-09-12 18:52:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1736. [2024-09-12 18:52:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1537 states have (on average 1.2075471698113207) internal successors, (1856), 1550 states have internal predecessors, (1856), 162 states have call successors, (162), 24 states have call predecessors, (162), 23 states have return successors, (161), 161 states have call predecessors, (161), 161 states have call successors, (161) [2024-09-12 18:52:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2179 transitions. [2024-09-12 18:52:16,162 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2179 transitions. Word has length 151 [2024-09-12 18:52:16,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:16,162 INFO L474 AbstractCegarLoop]: Abstraction has 1736 states and 2179 transitions. [2024-09-12 18:52:16,162 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.9) internal successors, (249), 11 states have internal predecessors, (249), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-09-12 18:52:16,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2179 transitions. [2024-09-12 18:52:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-09-12 18:52:16,163 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:16,163 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:52:16,174 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-09-12 18:52:16,363 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:52:16,363 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:16,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1276642534, now seen corresponding path program 1 times [2024-09-12 18:52:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:16,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555104601] [2024-09-12 18:52:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:52:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:52:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:52:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:16,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555104601] [2024-09-12 18:52:16,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555104601] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:16,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165574524] [2024-09-12 18:52:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:16,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:16,445 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:16,446 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-09-12 18:52:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:16,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:16,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:16,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165574524] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:16,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:16,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:52:16,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625646239] [2024-09-12 18:52:16,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:16,796 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:16,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:16,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:16,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:16,797 INFO L87 Difference]: Start difference. First operand 1736 states and 2179 transitions. Second operand has 11 states, 10 states have (on average 25.5) internal successors, (255), 11 states have internal predecessors, (255), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-09-12 18:52:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:19,381 INFO L93 Difference]: Finished difference Result 2368 states and 2979 transitions. [2024-09-12 18:52:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:19,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 25.5) internal successors, (255), 11 states have internal predecessors, (255), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 153 [2024-09-12 18:52:19,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:19,385 INFO L225 Difference]: With dead ends: 2368 [2024-09-12 18:52:19,385 INFO L226 Difference]: Without dead ends: 2366 [2024-09-12 18:52:19,386 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:19,386 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 299 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:19,386 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 419 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:19,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-09-12 18:52:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2199. [2024-09-12 18:52:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 1961 states have (on average 1.2167261601223864) internal successors, (2386), 1974 states have internal predecessors, (2386), 201 states have call successors, (201), 24 states have call predecessors, (201), 23 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2024-09-12 18:52:21,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2787 transitions. [2024-09-12 18:52:21,459 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2787 transitions. Word has length 153 [2024-09-12 18:52:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:21,460 INFO L474 AbstractCegarLoop]: Abstraction has 2199 states and 2787 transitions. [2024-09-12 18:52:21,460 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 25.5) internal successors, (255), 11 states have internal predecessors, (255), 10 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-09-12 18:52:21,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2787 transitions. [2024-09-12 18:52:21,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:52:21,460 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:21,461 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 18:52:21,472 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:21,661 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-09-12 18:52:21,661 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:21,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1570071838, now seen corresponding path program 3 times [2024-09-12 18:52:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:21,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020598834] [2024-09-12 18:52:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:21,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:21,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49448218] [2024-09-12 18:52:21,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:52:21,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:21,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:21,679 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:21,680 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-09-12 18:52:21,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:52:21,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:21,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:52:21,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:22,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:23,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:23,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020598834] [2024-09-12 18:52:23,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:23,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49448218] [2024-09-12 18:52:23,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49448218] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:23,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:23,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-09-12 18:52:23,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971778601] [2024-09-12 18:52:23,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:23,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:52:23,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:23,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:52:23,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:52:23,471 INFO L87 Difference]: Start difference. First operand 2199 states and 2787 transitions. Second operand has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:52:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:34,862 INFO L93 Difference]: Finished difference Result 2263 states and 2855 transitions. [2024-09-12 18:52:34,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:52:34,863 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 156 [2024-09-12 18:52:34,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:34,867 INFO L225 Difference]: With dead ends: 2263 [2024-09-12 18:52:34,867 INFO L226 Difference]: Without dead ends: 2209 [2024-09-12 18:52:34,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:52:34,868 INFO L434 NwaCegarLoop]: 115 mSDtfsCounter, 323 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:34,868 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 715 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-09-12 18:52:34,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-09-12 18:52:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2181. [2024-09-12 18:52:36,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1949 states have (on average 1.1975371985633658) internal successors, (2334), 1961 states have internal predecessors, (2334), 197 states have call successors, (197), 23 states have call predecessors, (197), 22 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2024-09-12 18:52:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2727 transitions. [2024-09-12 18:52:36,845 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2727 transitions. Word has length 156 [2024-09-12 18:52:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:36,845 INFO L474 AbstractCegarLoop]: Abstraction has 2181 states and 2727 transitions. [2024-09-12 18:52:36,845 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 7 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2024-09-12 18:52:36,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2727 transitions. [2024-09-12 18:52:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:52:36,846 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:36,846 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 18:52:36,851 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:37,046 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-09-12 18:52:37,046 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:37,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1489647262, now seen corresponding path program 4 times [2024-09-12 18:52:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:37,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892076852] [2024-09-12 18:52:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:37,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497848439] [2024-09-12 18:52:37,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:52:37,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:37,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:37,061 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:37,061 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-09-12 18:52:37,144 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:52:37,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:37,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:52:37,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:37,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:38,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:38,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892076852] [2024-09-12 18:52:38,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:38,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497848439] [2024-09-12 18:52:38,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497848439] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:38,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:38,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:52:38,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758147686] [2024-09-12 18:52:38,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:38,109 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:52:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:38,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:52:38,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:52:38,110 INFO L87 Difference]: Start difference. First operand 2181 states and 2727 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:52:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:40,591 INFO L93 Difference]: Finished difference Result 2240 states and 2794 transitions. [2024-09-12 18:52:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:52:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 156 [2024-09-12 18:52:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:40,596 INFO L225 Difference]: With dead ends: 2240 [2024-09-12 18:52:40,596 INFO L226 Difference]: Without dead ends: 2239 [2024-09-12 18:52:40,596 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:52:40,597 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:40,597 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 345 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:40,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2024-09-12 18:52:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2202. [2024-09-12 18:52:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1968 states have (on average 1.1961382113821137) internal successors, (2354), 1980 states have internal predecessors, (2354), 199 states have call successors, (199), 23 states have call predecessors, (199), 22 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-09-12 18:52:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2751 transitions. [2024-09-12 18:52:42,610 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2751 transitions. Word has length 156 [2024-09-12 18:52:42,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:42,610 INFO L474 AbstractCegarLoop]: Abstraction has 2202 states and 2751 transitions. [2024-09-12 18:52:42,610 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:52:42,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:42,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2751 transitions. [2024-09-12 18:52:42,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:52:42,611 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:42,611 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 18:52:42,618 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:42,812 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,62 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:42,812 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:42,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash -522266654, now seen corresponding path program 5 times [2024-09-12 18:52:42,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:42,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018402050] [2024-09-12 18:52:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:42,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016189054] [2024-09-12 18:52:42,823 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:52:42,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:42,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:42,825 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:42,826 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-09-12 18:52:42,931 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 18:52:42,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:42,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:42,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:43,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:43,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:43,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018402050] [2024-09-12 18:52:43,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:43,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016189054] [2024-09-12 18:52:43,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016189054] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:43,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:43,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:52:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681190394] [2024-09-12 18:52:43,397 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:43,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:43,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:43,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:43,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:43,398 INFO L87 Difference]: Start difference. First operand 2202 states and 2751 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 18:52:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:45,753 INFO L93 Difference]: Finished difference Result 2205 states and 2751 transitions. [2024-09-12 18:52:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:45,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 156 [2024-09-12 18:52:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:45,757 INFO L225 Difference]: With dead ends: 2205 [2024-09-12 18:52:45,757 INFO L226 Difference]: Without dead ends: 2204 [2024-09-12 18:52:45,758 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:52:45,758 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:45,758 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 244 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:45,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2024-09-12 18:52:47,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2202. [2024-09-12 18:52:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1968 states have (on average 1.195630081300813) internal successors, (2353), 1980 states have internal predecessors, (2353), 199 states have call successors, (199), 23 states have call predecessors, (199), 22 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-09-12 18:52:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2750 transitions. [2024-09-12 18:52:47,786 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2750 transitions. Word has length 156 [2024-09-12 18:52:47,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:47,786 INFO L474 AbstractCegarLoop]: Abstraction has 2202 states and 2750 transitions. [2024-09-12 18:52:47,786 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 18:52:47,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2750 transitions. [2024-09-12 18:52:47,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:52:47,787 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:47,787 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 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 18:52:47,799 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:47,987 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,63 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:47,988 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:47,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1034906640, now seen corresponding path program 6 times [2024-09-12 18:52:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:47,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772950123] [2024-09-12 18:52:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:47,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374359356] [2024-09-12 18:52:47,997 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:52:47,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:47,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:47,999 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:48,000 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-09-12 18:52:48,061 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-09-12 18:52:48,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:48,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:52:48,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:48,436 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:52:48,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:48,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:48,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772950123] [2024-09-12 18:52:48,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:48,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374359356] [2024-09-12 18:52:48,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374359356] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:48,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:48,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:52:48,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118677345] [2024-09-12 18:52:48,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:48,802 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:48,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:48,803 INFO L87 Difference]: Start difference. First operand 2202 states and 2750 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 18:52:51,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:51,020 INFO L93 Difference]: Finished difference Result 2234 states and 2786 transitions. [2024-09-12 18:52:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:52:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 156 [2024-09-12 18:52:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:51,024 INFO L225 Difference]: With dead ends: 2234 [2024-09-12 18:52:51,024 INFO L226 Difference]: Without dead ends: 2233 [2024-09-12 18:52:51,024 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:51,025 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 54 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:51,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 205 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2024-09-12 18:52:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2202. [2024-09-12 18:52:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1968 states have (on average 1.1951219512195121) internal successors, (2352), 1980 states have internal predecessors, (2352), 199 states have call successors, (199), 23 states have call predecessors, (199), 22 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-09-12 18:52:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2749 transitions. [2024-09-12 18:52:53,034 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2749 transitions. Word has length 156 [2024-09-12 18:52:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:53,034 INFO L474 AbstractCegarLoop]: Abstraction has 2202 states and 2749 transitions. [2024-09-12 18:52:53,034 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 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 18:52:53,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2749 transitions. [2024-09-12 18:52:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:52:53,035 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:53,035 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 18:52:53,047 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:53,235 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2024-09-12 18:52:53,236 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:53,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:53,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1305513372, now seen corresponding path program 3 times [2024-09-12 18:52:53,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:53,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205765611] [2024-09-12 18:52:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:53,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:53,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266599200] [2024-09-12 18:52:53,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:52:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:53,248 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:52:53,249 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-09-12 18:52:53,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:52:53,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:53,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:52:53,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 24 proven. 93 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:52:54,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:55,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:55,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205765611] [2024-09-12 18:52:55,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:55,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266599200] [2024-09-12 18:52:55,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266599200] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:55,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:55,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:52:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875972689] [2024-09-12 18:52:55,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:55,124 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:52:55,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:52:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:52:55,125 INFO L87 Difference]: Start difference. First operand 2202 states and 2749 transitions. Second operand has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:52:57,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:01,621 WARN L539 Checker$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 18:53:04,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:09,641 WARN L539 Checker$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 18:53:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:12,036 INFO L93 Difference]: Finished difference Result 2210 states and 2755 transitions. [2024-09-12 18:53:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:53:12,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 158 [2024-09-12 18:53:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:12,040 INFO L225 Difference]: With dead ends: 2210 [2024-09-12 18:53:12,040 INFO L226 Difference]: Without dead ends: 2209 [2024-09-12 18:53:12,040 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:53:12,040 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 41 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:12,040 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 376 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1152 Invalid, 9 Unknown, 0 Unchecked, 14.8s Time] [2024-09-12 18:53:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-09-12 18:53:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2202. [2024-09-12 18:53:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 1968 states have (on average 1.1946138211382114) internal successors, (2351), 1980 states have internal predecessors, (2351), 199 states have call successors, (199), 23 states have call predecessors, (199), 22 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-09-12 18:53:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2748 transitions. [2024-09-12 18:53:14,036 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2748 transitions. Word has length 158 [2024-09-12 18:53:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:14,037 INFO L474 AbstractCegarLoop]: Abstraction has 2202 states and 2748 transitions. [2024-09-12 18:53:14,037 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.615384615384615) internal successors, (99), 14 states have internal predecessors, (99), 4 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 18:53:14,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2748 transitions. [2024-09-12 18:53:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:53:14,037 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:14,038 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 18:53:14,049 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-09-12 18:53:14,238 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,65 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:14,238 INFO L399 AbstractCegarLoop]: === Iteration 74 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:14,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1326907164, now seen corresponding path program 4 times [2024-09-12 18:53:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218592368] [2024-09-12 18:53:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:14,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883831483] [2024-09-12 18:53:14,248 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:53:14,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:14,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:14,249 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:53:14,250 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-09-12 18:53:14,323 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:53:14,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:53:14,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:53:14,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-09-12 18:53:14,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218592368] [2024-09-12 18:53:15,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883831483] [2024-09-12 18:53:15,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883831483] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:15,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:15,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:53:15,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588483497] [2024-09-12 18:53:15,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:15,007 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:53:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:53:15,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:53:15,008 INFO L87 Difference]: Start difference. First operand 2202 states and 2748 transitions. Second operand has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 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 18:53:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:17,298 INFO L93 Difference]: Finished difference Result 2241 states and 2792 transitions. [2024-09-12 18:53:17,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:17,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 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 158 [2024-09-12 18:53:17,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:17,302 INFO L225 Difference]: With dead ends: 2241 [2024-09-12 18:53:17,302 INFO L226 Difference]: Without dead ends: 2240 [2024-09-12 18:53:17,303 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:17,303 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 77 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:17,303 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 257 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:53:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-09-12 18:53:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2204. [2024-09-12 18:53:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1970 states have (on average 1.1944162436548222) internal successors, (2353), 1982 states have internal predecessors, (2353), 199 states have call successors, (199), 23 states have call predecessors, (199), 22 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2024-09-12 18:53:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 2750 transitions. [2024-09-12 18:53:19,326 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 2750 transitions. Word has length 158 [2024-09-12 18:53:19,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:19,327 INFO L474 AbstractCegarLoop]: Abstraction has 2204 states and 2750 transitions. [2024-09-12 18:53:19,327 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 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 18:53:19,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:19,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 2750 transitions. [2024-09-12 18:53:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:53:19,327 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:19,327 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 18:53:19,333 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:19,528 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,66 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:19,528 INFO L399 AbstractCegarLoop]: === Iteration 75 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:19,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash -31300878, now seen corresponding path program 5 times [2024-09-12 18:53:19,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:19,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400791383] [2024-09-12 18:53:19,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748979625] [2024-09-12 18:53:19,538 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:53:19,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:19,539 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:53:19,540 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-09-12 18:53:20,786 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 18:53:20,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:53:20,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:53:20,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 21 proven. 105 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-09-12 18:53:30,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:31,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:31,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400791383] [2024-09-12 18:53:31,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:31,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748979625] [2024-09-12 18:53:31,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748979625] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:31,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:31,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:53:31,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718466138] [2024-09-12 18:53:31,065 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:31,065 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:53:31,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:53:31,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=348, Unknown=2, NotChecked=0, Total=420 [2024-09-12 18:53:31,066 INFO L87 Difference]: Start difference. First operand 2204 states and 2750 transitions. Second operand has 18 states, 17 states have (on average 6.0) internal successors, (102), 17 states have internal predecessors, (102), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:53:33,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:38,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:42,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:47,014 WARN L539 Checker$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 18:53:51,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:53:55,451 WARN L539 Checker$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 18:54:00,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]