./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.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_valuebound20.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 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 --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 18:50:58,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:50:58,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:50:58,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:50:58,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:50:58,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:50:58,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:50:58,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:50:58,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:50:58,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:50:58,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:50:58,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:50:58,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:50:58,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:50:58,446 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:50:58,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:50:58,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:50:58,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:50:58,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:50:58,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:50:58,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:50:58,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:50:58,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:50:58,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:50:58,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:50:58,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:50:58,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:50:58,450 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:50:58,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:50:58,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:50:58,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:50:58,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:50:58,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:50:58,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:50:58,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:50:58,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:50:58,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:50:58,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:50:58,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:50:58,453 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:50:58,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:50:58,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:50:58,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:50:58,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:50:58,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:50:58,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:50:58,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:50:58,737 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:50:58,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2024-09-12 18:51:00,098 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:51:00,260 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:51:00,262 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2024-09-12 18:51:00,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a3b41f10b/88c5e41351274d7b96b428d4f683b70b/FLAGe9132fe45 [2024-09-12 18:51:00,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a3b41f10b/88c5e41351274d7b96b428d4f683b70b [2024-09-12 18:51:00,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:51:00,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:51:00,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:51:00,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:51:00,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:51:00,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad45886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00, skipping insertion in model container [2024-09-12 18:51:00,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:51:00,450 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_valuebound20.c[489,502] [2024-09-12 18:51:00,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:51:00,482 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:51:00,492 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_valuebound20.c[489,502] [2024-09-12 18:51:00,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:51:00,517 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:51:00,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00 WrapperNode [2024-09-12 18:51:00,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:51:00,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:51:00,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:51:00,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:51:00,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,533 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:51:00,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:51:00,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:51:00,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:51:00,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:51:00,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,562 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 18:51:00,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:51:00,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:51:00,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:51:00,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:51:00,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (1/1) ... [2024-09-12 18:51:00,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:51:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:00,598 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 18:51:00,600 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 18:51:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:51:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:51:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:51:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:51:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:51:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:51:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:51:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:51:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:51:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:51:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:51:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:51:00,682 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:51:00,684 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:51:01,312 INFO L? ?]: Removed 156 outVars from TransFormulas that were not future-live. [2024-09-12 18:51:01,312 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:51:01,341 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:51:01,342 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:51:01,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:51:01 BoogieIcfgContainer [2024-09-12 18:51:01,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:51:01,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:51:01,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:51:01,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:51:01,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:51:00" (1/3) ... [2024-09-12 18:51:01,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cc241c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:51:01, skipping insertion in model container [2024-09-12 18:51:01,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:51:00" (2/3) ... [2024-09-12 18:51:01,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cc241c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:51:01, skipping insertion in model container [2024-09-12 18:51:01,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:51:01" (3/3) ... [2024-09-12 18:51:01,350 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound20.c [2024-09-12 18:51:01,364 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:51:01,365 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-09-12 18:51:01,429 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:51:01,434 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;@7dd44eef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:51:01,434 INFO L337 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-09-12 18:51:01,438 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 18:51:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:51:01,443 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:01,444 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 18:51:01,444 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:01,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:01,450 INFO L85 PathProgramCache]: Analyzing trace with hash -171271695, now seen corresponding path program 1 times [2024-09-12 18:51:01,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:01,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404301873] [2024-09-12 18:51:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,584 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 18:51:01,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:01,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404301873] [2024-09-12 18:51:01,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404301873] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:01,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:01,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:01,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668807903] [2024-09-12 18:51:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:01,590 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:51:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:01,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:51:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:51:01,612 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 18:51:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:01,650 INFO L93 Difference]: Finished difference Result 288 states and 326 transitions. [2024-09-12 18:51:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:51:01,653 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 18:51:01,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:01,659 INFO L225 Difference]: With dead ends: 288 [2024-09-12 18:51:01,659 INFO L226 Difference]: Without dead ends: 143 [2024-09-12 18:51:01,663 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 18:51:01,665 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 18:51:01,666 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 18:51:01,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-09-12 18:51:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-09-12 18:51:01,700 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 18:51:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 153 transitions. [2024-09-12 18:51:01,705 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 153 transitions. Word has length 29 [2024-09-12 18:51:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:01,705 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 153 transitions. [2024-09-12 18:51:01,706 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 18:51:01,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 153 transitions. [2024-09-12 18:51:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 18:51:01,708 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:01,708 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 18:51:01,708 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:51:01,708 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:01,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -215164884, now seen corresponding path program 1 times [2024-09-12 18:51:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347285312] [2024-09-12 18:51:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:01,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116648372] [2024-09-12 18:51:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:01,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:01,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:01,754 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 18:51:01,775 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 18:51:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:01,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:51:01,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:01,917 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 18:51:01,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:01,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:01,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347285312] [2024-09-12 18:51:01,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:01,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116648372] [2024-09-12 18:51:01,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116648372] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:01,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:01,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:01,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196593453] [2024-09-12 18:51:01,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:01,920 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:01,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:01,924 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 18:51:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:02,252 INFO L93 Difference]: Finished difference Result 229 states and 279 transitions. [2024-09-12 18:51:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:02,253 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 18:51:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:02,254 INFO L225 Difference]: With dead ends: 229 [2024-09-12 18:51:02,255 INFO L226 Difference]: Without dead ends: 225 [2024-09-12 18:51:02,255 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 18:51:02,256 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 18:51:02,256 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 18:51:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-09-12 18:51:02,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 182. [2024-09-12 18:51:02,280 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 18:51:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 226 transitions. [2024-09-12 18:51:02,282 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 226 transitions. Word has length 29 [2024-09-12 18:51:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:02,282 INFO L474 AbstractCegarLoop]: Abstraction has 182 states and 226 transitions. [2024-09-12 18:51:02,282 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 18:51:02,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 226 transitions. [2024-09-12 18:51:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 18:51:02,286 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:02,286 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 18:51:02,298 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:51:02,490 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 18:51:02,491 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:02,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:02,492 INFO L85 PathProgramCache]: Analyzing trace with hash -615021330, now seen corresponding path program 1 times [2024-09-12 18:51:02,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:02,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247576722] [2024-09-12 18:51:02,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:02,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165523842] [2024-09-12 18:51:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:02,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:02,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:02,517 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 18:51:02,519 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 18:51:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:02,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:51:02,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:02,585 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 18:51:02,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:02,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:02,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247576722] [2024-09-12 18:51:02,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165523842] [2024-09-12 18:51:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165523842] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980424533] [2024-09-12 18:51:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:02,587 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:02,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:02,589 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 18:51:02,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:02,863 INFO L93 Difference]: Finished difference Result 288 states and 356 transitions. [2024-09-12 18:51:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:02,863 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 18:51:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:02,865 INFO L225 Difference]: With dead ends: 288 [2024-09-12 18:51:02,865 INFO L226 Difference]: Without dead ends: 280 [2024-09-12 18:51:02,865 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 18:51:02,866 INFO L434 NwaCegarLoop]: 114 mSDtfsCounter, 89 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 18:51:02,867 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 18:51:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-09-12 18:51:02,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 226. [2024-09-12 18:51:02,900 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 18:51:02,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 297 transitions. [2024-09-12 18:51:02,902 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 297 transitions. Word has length 31 [2024-09-12 18:51:02,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:02,902 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 297 transitions. [2024-09-12 18:51:02,902 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 18:51:02,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 297 transitions. [2024-09-12 18:51:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 18:51:02,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:02,903 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 18:51:02,918 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 18:51:03,104 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 18:51:03,105 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:03,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:03,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1669990832, now seen corresponding path program 1 times [2024-09-12 18:51:03,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:03,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200213140] [2024-09-12 18:51:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:03,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1655848235] [2024-09-12 18:51:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:03,138 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 18:51:03,139 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 18:51:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:03,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:51:03,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:03,231 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 18:51:03,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:03,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:03,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200213140] [2024-09-12 18:51:03,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:03,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655848235] [2024-09-12 18:51:03,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655848235] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:03,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:03,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357397419] [2024-09-12 18:51:03,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:03,233 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:03,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:03,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:03,234 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 18:51:03,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:03,519 INFO L93 Difference]: Finished difference Result 268 states and 336 transitions. [2024-09-12 18:51:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:03,520 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 18:51:03,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:03,522 INFO L225 Difference]: With dead ends: 268 [2024-09-12 18:51:03,522 INFO L226 Difference]: Without dead ends: 256 [2024-09-12 18:51:03,522 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 18:51:03,523 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 18:51:03,523 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 18:51:03,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-09-12 18:51:03,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 193. [2024-09-12 18:51:03,534 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 18:51:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 232 transitions. [2024-09-12 18:51:03,535 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 232 transitions. Word has length 33 [2024-09-12 18:51:03,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:03,536 INFO L474 AbstractCegarLoop]: Abstraction has 193 states and 232 transitions. [2024-09-12 18:51:03,536 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 18:51:03,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 232 transitions. [2024-09-12 18:51:03,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:51:03,537 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:03,537 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 18:51:03,549 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:03,737 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 18:51:03,738 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 18:51:03,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash -823621886, now seen corresponding path program 1 times [2024-09-12 18:51:03,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278539590] [2024-09-12 18:51:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:03,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394451611] [2024-09-12 18:51:03,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:03,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:03,756 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 18:51:03,761 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 18:51:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:03,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:51:03,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:03,877 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 18:51:03,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:03,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:03,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278539590] [2024-09-12 18:51:03,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:03,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394451611] [2024-09-12 18:51:03,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394451611] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:03,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:03,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:03,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960577428] [2024-09-12 18:51:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:03,878 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:03,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:03,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:03,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:03,879 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 18:51:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:04,175 INFO L93 Difference]: Finished difference Result 223 states and 264 transitions. [2024-09-12 18:51:04,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:04,175 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 18:51:04,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:04,177 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:51:04,177 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:51:04,177 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 18:51:04,180 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 18:51:04,180 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 18:51:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:51:04,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:51:04,190 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 18:51:04,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 237 transitions. [2024-09-12 18:51:04,192 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 237 transitions. Word has length 38 [2024-09-12 18:51:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:04,193 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 237 transitions. [2024-09-12 18:51:04,193 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 18:51:04,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 237 transitions. [2024-09-12 18:51:04,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:51:04,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:04,194 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 18:51:04,206 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 18:51:04,398 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 18:51:04,399 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:04,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1836186766, now seen corresponding path program 1 times [2024-09-12 18:51:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653976144] [2024-09-12 18:51:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042793647] [2024-09-12 18:51:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:04,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:04,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:04,415 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 18:51:04,416 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 18:51:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:04,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:04,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:04,495 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 18:51:04,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653976144] [2024-09-12 18:51:04,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042793647] [2024-09-12 18:51:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042793647] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:04,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485057623] [2024-09-12 18:51:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:04,497 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:04,498 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 18:51:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:04,862 INFO L93 Difference]: Finished difference Result 223 states and 262 transitions. [2024-09-12 18:51:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:04,863 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 18:51:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:04,864 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:51:04,864 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:51:04,864 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 18:51:04,865 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:04,865 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 187 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:51:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:51:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:51:04,882 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 18:51:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 235 transitions. [2024-09-12 18:51:04,884 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 235 transitions. Word has length 42 [2024-09-12 18:51:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:04,884 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 235 transitions. [2024-09-12 18:51:04,884 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 18:51:04,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 235 transitions. [2024-09-12 18:51:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:51:04,886 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:04,886 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 18:51:04,898 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:51:05,086 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 18:51:05,087 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:05,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1087214819, now seen corresponding path program 1 times [2024-09-12 18:51:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:05,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682106550] [2024-09-12 18:51:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:05,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:05,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193728584] [2024-09-12 18:51:05,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:05,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:05,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:05,104 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 18:51:05,105 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 18:51:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:05,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:05,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:05,180 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 18:51:05,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:05,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:05,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682106550] [2024-09-12 18:51:05,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:05,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193728584] [2024-09-12 18:51:05,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193728584] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:05,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:05,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:05,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015664814] [2024-09-12 18:51:05,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:05,181 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:05,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:05,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:05,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:05,182 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 18:51:05,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:05,579 INFO L93 Difference]: Finished difference Result 223 states and 260 transitions. [2024-09-12 18:51:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:05,580 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 18:51:05,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:05,581 INFO L225 Difference]: With dead ends: 223 [2024-09-12 18:51:05,581 INFO L226 Difference]: Without dead ends: 221 [2024-09-12 18:51:05,581 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 18:51:05,582 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 218 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:05,582 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 165 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:51:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-09-12 18:51:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 198. [2024-09-12 18:51:05,594 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 18:51:05,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2024-09-12 18:51:05,595 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 43 [2024-09-12 18:51:05,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:05,596 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2024-09-12 18:51:05,596 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 18:51:05,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:05,596 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2024-09-12 18:51:05,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:51:05,597 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:05,597 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 18:51:05,609 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 18:51:05,797 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 18:51:05,798 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:05,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 656079060, now seen corresponding path program 1 times [2024-09-12 18:51:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:05,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897952206] [2024-09-12 18:51:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:05,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:05,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752612534] [2024-09-12 18:51:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:05,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:05,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:05,821 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 18:51:05,822 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 18:51:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:05,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:05,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:05,909 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 18:51:05,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:05,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897952206] [2024-09-12 18:51:05,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:05,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752612534] [2024-09-12 18:51:05,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752612534] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:05,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:05,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:05,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812849397] [2024-09-12 18:51:05,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:05,912 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:05,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:05,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:05,912 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 18:51:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:06,497 INFO L93 Difference]: Finished difference Result 250 states and 274 transitions. [2024-09-12 18:51:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:06,498 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 18:51:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:06,499 INFO L225 Difference]: With dead ends: 250 [2024-09-12 18:51:06,499 INFO L226 Difference]: Without dead ends: 248 [2024-09-12 18:51:06,499 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 18:51:06,500 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 139 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 18:51:06,500 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 18:51:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-09-12 18:51:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 198. [2024-09-12 18:51:06,514 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 18:51:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 231 transitions. [2024-09-12 18:51:06,515 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 231 transitions. Word has length 44 [2024-09-12 18:51:06,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:06,515 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 231 transitions. [2024-09-12 18:51:06,515 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 18:51:06,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:06,515 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 231 transitions. [2024-09-12 18:51:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:51:06,516 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:06,516 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 18:51:06,529 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 18:51:06,718 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 18:51:06,719 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:06,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:06,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1136385537, now seen corresponding path program 1 times [2024-09-12 18:51:06,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:06,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874518191] [2024-09-12 18:51:06,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:06,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:06,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154544239] [2024-09-12 18:51:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:06,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:06,735 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 18:51:06,736 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 18:51:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:06,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:06,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:06,857 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 18:51:06,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:06,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874518191] [2024-09-12 18:51:06,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:06,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154544239] [2024-09-12 18:51:06,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154544239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:06,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:06,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:06,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086397439] [2024-09-12 18:51:06,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:06,860 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:06,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:06,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:06,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:06,861 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 18:51:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:07,945 INFO L93 Difference]: Finished difference Result 251 states and 273 transitions. [2024-09-12 18:51:07,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:07,946 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 18:51:07,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:07,947 INFO L225 Difference]: With dead ends: 251 [2024-09-12 18:51:07,948 INFO L226 Difference]: Without dead ends: 249 [2024-09-12 18:51:07,948 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 18:51:07,948 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 82 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:07,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 256 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:51:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-09-12 18:51:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 198. [2024-09-12 18:51:07,973 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 18:51:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 229 transitions. [2024-09-12 18:51:07,974 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 229 transitions. Word has length 45 [2024-09-12 18:51:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:07,975 INFO L474 AbstractCegarLoop]: Abstraction has 198 states and 229 transitions. [2024-09-12 18:51:07,975 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 18:51:07,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:07,976 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 229 transitions. [2024-09-12 18:51:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:51:07,978 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:07,978 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 18:51:07,990 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:08,178 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 18:51:08,179 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 18:51:08,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:08,179 INFO L85 PathProgramCache]: Analyzing trace with hash -642021207, now seen corresponding path program 1 times [2024-09-12 18:51:08,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:08,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279002332] [2024-09-12 18:51:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:08,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:08,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767356328] [2024-09-12 18:51:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:08,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:08,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:08,204 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 18:51:08,205 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 18:51:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:08,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:51:08,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:08,380 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 18:51:08,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:08,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279002332] [2024-09-12 18:51:08,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767356328] [2024-09-12 18:51:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767356328] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:08,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:08,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035737741] [2024-09-12 18:51:08,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:08,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:08,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:08,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:08,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:08,381 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 18:51:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:08,931 INFO L93 Difference]: Finished difference Result 219 states and 255 transitions. [2024-09-12 18:51:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:08,932 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 18:51:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:08,933 INFO L225 Difference]: With dead ends: 219 [2024-09-12 18:51:08,933 INFO L226 Difference]: Without dead ends: 217 [2024-09-12 18:51:08,934 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 18:51:08,934 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, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:08,934 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 271 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:51:08,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-12 18:51:08,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2024-09-12 18:51:08,949 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 18:51:08,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 232 transitions. [2024-09-12 18:51:08,950 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 232 transitions. Word has length 49 [2024-09-12 18:51:08,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:08,950 INFO L474 AbstractCegarLoop]: Abstraction has 202 states and 232 transitions. [2024-09-12 18:51:08,950 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 18:51:08,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 232 transitions. [2024-09-12 18:51:08,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 18:51:08,953 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:08,953 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 18:51:08,977 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:51:09,153 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 18:51:09,154 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:09,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1493070402, now seen corresponding path program 1 times [2024-09-12 18:51:09,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032702366] [2024-09-12 18:51:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:09,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952689404] [2024-09-12 18:51:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:09,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:09,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:09,179 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 18:51:09,198 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 18:51:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:09,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:51:09,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:09,256 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 18:51:09,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:09,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:09,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032702366] [2024-09-12 18:51:09,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952689404] [2024-09-12 18:51:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952689404] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:09,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:09,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:09,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830750248] [2024-09-12 18:51:09,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:09,257 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:09,258 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 18:51:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:09,588 INFO L93 Difference]: Finished difference Result 353 states and 429 transitions. [2024-09-12 18:51:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:09,589 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 18:51:09,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:09,592 INFO L225 Difference]: With dead ends: 353 [2024-09-12 18:51:09,592 INFO L226 Difference]: Without dead ends: 345 [2024-09-12 18:51:09,592 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 18:51:09,593 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 18:51:09,593 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 18:51:09,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-09-12 18:51:09,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 300. [2024-09-12 18:51:09,618 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 18:51:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 390 transitions. [2024-09-12 18:51:09,620 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 390 transitions. Word has length 51 [2024-09-12 18:51:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:09,620 INFO L474 AbstractCegarLoop]: Abstraction has 300 states and 390 transitions. [2024-09-12 18:51:09,620 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 18:51:09,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:09,621 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 390 transitions. [2024-09-12 18:51:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 18:51:09,621 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:09,621 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 18:51:09,633 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:51:09,822 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 18:51:09,822 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:09,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:09,823 INFO L85 PathProgramCache]: Analyzing trace with hash 321582276, now seen corresponding path program 1 times [2024-09-12 18:51:09,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:09,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612643534] [2024-09-12 18:51:09,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:09,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:09,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119651876] [2024-09-12 18:51:09,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:09,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:09,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:09,845 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 18:51:09,849 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:51:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:09,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:09,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:09,991 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 18:51:09,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:09,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:09,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612643534] [2024-09-12 18:51:09,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:09,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119651876] [2024-09-12 18:51:09,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119651876] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:09,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:09,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:09,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409085654] [2024-09-12 18:51:09,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:09,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:09,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:09,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:09,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:09,992 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 18:51:10,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:10,336 INFO L93 Difference]: Finished difference Result 335 states and 425 transitions. [2024-09-12 18:51:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:10,336 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 18:51:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:10,338 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:51:10,338 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:51:10,338 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 18:51:10,339 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 18:51:10,339 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 18:51:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:51:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 301. [2024-09-12 18:51:10,372 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 18:51:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 389 transitions. [2024-09-12 18:51:10,373 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 389 transitions. Word has length 53 [2024-09-12 18:51:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:10,374 INFO L474 AbstractCegarLoop]: Abstraction has 301 states and 389 transitions. [2024-09-12 18:51:10,374 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 18:51:10,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 389 transitions. [2024-09-12 18:51:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 18:51:10,375 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:10,375 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 18:51:10,388 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:51:10,579 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 18:51:10,580 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:10,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1379116056, now seen corresponding path program 1 times [2024-09-12 18:51:10,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:10,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106018201] [2024-09-12 18:51:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:10,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:10,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030721504] [2024-09-12 18:51:10,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:10,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:10,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:10,592 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 18:51:10,595 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 18:51:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:10,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:10,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:10,701 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 18:51:10,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:10,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:10,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106018201] [2024-09-12 18:51:10,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:10,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030721504] [2024-09-12 18:51:10,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030721504] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:10,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:10,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:10,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030628587] [2024-09-12 18:51:10,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:10,702 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:10,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:10,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:10,703 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 18:51:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:11,095 INFO L93 Difference]: Finished difference Result 335 states and 422 transitions. [2024-09-12 18:51:11,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:11,098 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 18:51:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:11,100 INFO L225 Difference]: With dead ends: 335 [2024-09-12 18:51:11,100 INFO L226 Difference]: Without dead ends: 333 [2024-09-12 18:51:11,100 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 18:51:11,101 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 170 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:11,101 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 178 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:51:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-09-12 18:51:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 302. [2024-09-12 18:51:11,138 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 18:51:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 388 transitions. [2024-09-12 18:51:11,140 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 388 transitions. Word has length 54 [2024-09-12 18:51:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:11,140 INFO L474 AbstractCegarLoop]: Abstraction has 302 states and 388 transitions. [2024-09-12 18:51:11,140 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 18:51:11,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 388 transitions. [2024-09-12 18:51:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 18:51:11,141 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:11,141 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 18:51:11,153 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:51:11,341 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 18:51:11,342 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:11,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:11,342 INFO L85 PathProgramCache]: Analyzing trace with hash -197075130, now seen corresponding path program 1 times [2024-09-12 18:51:11,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:11,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298557996] [2024-09-12 18:51:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:11,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:11,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62032592] [2024-09-12 18:51:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:11,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:11,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:11,354 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 18:51:11,356 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 18:51:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:11,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:11,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:11,441 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 18:51:11,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:11,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298557996] [2024-09-12 18:51:11,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62032592] [2024-09-12 18:51:11,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62032592] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:11,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:11,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:11,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716235483] [2024-09-12 18:51:11,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:11,443 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:11,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:11,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:11,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:11,443 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 18:51:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:12,219 INFO L93 Difference]: Finished difference Result 343 states and 413 transitions. [2024-09-12 18:51:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:12,219 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 18:51:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:12,221 INFO L225 Difference]: With dead ends: 343 [2024-09-12 18:51:12,221 INFO L226 Difference]: Without dead ends: 341 [2024-09-12 18:51:12,221 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 18:51:12,221 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 18:51:12,222 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 18:51:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-09-12 18:51:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 303. [2024-09-12 18:51:12,250 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 18:51:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 387 transitions. [2024-09-12 18:51:12,252 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 387 transitions. Word has length 55 [2024-09-12 18:51:12,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:12,252 INFO L474 AbstractCegarLoop]: Abstraction has 303 states and 387 transitions. [2024-09-12 18:51:12,252 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 18:51:12,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 387 transitions. [2024-09-12 18:51:12,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:51:12,252 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:12,253 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 18:51:12,279 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 18:51:12,453 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:51:12,453 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:12,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1814361638, now seen corresponding path program 1 times [2024-09-12 18:51:12,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:12,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801311125] [2024-09-12 18:51:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582065725] [2024-09-12 18:51:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:12,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:12,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:12,471 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 18:51:12,472 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 18:51:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:12,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:12,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:12,563 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 18:51:12,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:12,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801311125] [2024-09-12 18:51:12,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:12,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582065725] [2024-09-12 18:51:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582065725] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:12,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758187831] [2024-09-12 18:51:12,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:12,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:12,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:12,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:12,565 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 18:51:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:13,349 INFO L93 Difference]: Finished difference Result 343 states and 410 transitions. [2024-09-12 18:51:13,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:13,350 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 18:51:13,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:13,352 INFO L225 Difference]: With dead ends: 343 [2024-09-12 18:51:13,352 INFO L226 Difference]: Without dead ends: 341 [2024-09-12 18:51:13,352 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 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 18:51:13,352 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 132 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:13,353 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 202 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:51:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-09-12 18:51:13,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 304. [2024-09-12 18:51:13,392 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 18:51:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 386 transitions. [2024-09-12 18:51:13,394 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 386 transitions. Word has length 56 [2024-09-12 18:51:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:13,394 INFO L474 AbstractCegarLoop]: Abstraction has 304 states and 386 transitions. [2024-09-12 18:51:13,395 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 18:51:13,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 386 transitions. [2024-09-12 18:51:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 18:51:13,395 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:13,396 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 18:51:13,412 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 18:51:13,597 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 18:51:13,597 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 18:51:13,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1181355070, now seen corresponding path program 1 times [2024-09-12 18:51:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:13,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210862057] [2024-09-12 18:51:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:13,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201636707] [2024-09-12 18:51:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:13,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:13,620 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 18:51:13,622 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 18:51:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:13,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:51:13,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:13,767 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 18:51:13,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:13,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:13,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210862057] [2024-09-12 18:51:13,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201636707] [2024-09-12 18:51:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201636707] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692068005] [2024-09-12 18:51:13,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:13,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:13,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:13,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:13,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:13,769 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 18:51:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:14,116 INFO L93 Difference]: Finished difference Result 323 states and 404 transitions. [2024-09-12 18:51:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:14,116 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 18:51:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:14,120 INFO L225 Difference]: With dead ends: 323 [2024-09-12 18:51:14,120 INFO L226 Difference]: Without dead ends: 301 [2024-09-12 18:51:14,121 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 18:51:14,121 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:14,121 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 240 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:51:14,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-09-12 18:51:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-09-12 18:51:14,163 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 18:51:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 371 transitions. [2024-09-12 18:51:14,165 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 371 transitions. Word has length 60 [2024-09-12 18:51:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:14,165 INFO L474 AbstractCegarLoop]: Abstraction has 293 states and 371 transitions. [2024-09-12 18:51:14,165 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 18:51:14,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,166 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 371 transitions. [2024-09-12 18:51:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:51:14,166 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:14,166 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 18:51:14,178 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:51:14,366 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 18:51:14,367 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:14,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -781913598, now seen corresponding path program 1 times [2024-09-12 18:51:14,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:14,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7023447] [2024-09-12 18:51:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:14,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,452 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 18:51:14,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:14,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7023447] [2024-09-12 18:51:14,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7023447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:14,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:14,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:14,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145285893] [2024-09-12 18:51:14,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:14,453 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:14,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:14,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:14,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:14,454 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 18:51:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:14,507 INFO L93 Difference]: Finished difference Result 293 states and 371 transitions. [2024-09-12 18:51:14,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:14,508 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 18:51:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:14,509 INFO L225 Difference]: With dead ends: 293 [2024-09-12 18:51:14,509 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 18:51:14,509 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 18:51:14,510 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 18:51:14,510 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 18:51:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 18:51:14,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 18:51:14,551 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 18:51:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 365 transitions. [2024-09-12 18:51:14,552 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 365 transitions. Word has length 63 [2024-09-12 18:51:14,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:14,553 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 365 transitions. [2024-09-12 18:51:14,553 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 18:51:14,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,553 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 365 transitions. [2024-09-12 18:51:14,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-09-12 18:51:14,554 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:14,554 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 18:51:14,554 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:51:14,554 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:14,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1530482377, now seen corresponding path program 1 times [2024-09-12 18:51:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:14,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725837394] [2024-09-12 18:51:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:14,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,591 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 18:51:14,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:14,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725837394] [2024-09-12 18:51:14,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725837394] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:14,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:14,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:14,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051734357] [2024-09-12 18:51:14,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:14,592 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:14,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:14,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:14,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:14,592 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 18:51:14,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:14,641 INFO L93 Difference]: Finished difference Result 291 states and 365 transitions. [2024-09-12 18:51:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:14,642 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 18:51:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:14,643 INFO L225 Difference]: With dead ends: 291 [2024-09-12 18:51:14,643 INFO L226 Difference]: Without dead ends: 289 [2024-09-12 18:51:14,644 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 18:51:14,644 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 18:51:14,644 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 18:51:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-09-12 18:51:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-09-12 18:51:14,682 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 18:51:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 359 transitions. [2024-09-12 18:51:14,683 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 359 transitions. Word has length 64 [2024-09-12 18:51:14,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:14,683 INFO L474 AbstractCegarLoop]: Abstraction has 289 states and 359 transitions. [2024-09-12 18:51:14,683 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 18:51:14,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 359 transitions. [2024-09-12 18:51:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:51:14,684 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:14,684 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 18:51:14,684 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:51:14,685 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:14,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:14,685 INFO L85 PathProgramCache]: Analyzing trace with hash 200355280, now seen corresponding path program 1 times [2024-09-12 18:51:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553477593] [2024-09-12 18:51:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:14,759 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 18:51:14,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:14,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553477593] [2024-09-12 18:51:14,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553477593] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:14,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:14,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:51:14,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582590158] [2024-09-12 18:51:14,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:14,760 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:14,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:14,761 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 18:51:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:15,135 INFO L93 Difference]: Finished difference Result 292 states and 362 transitions. [2024-09-12 18:51:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:51:15,136 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 18:51:15,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:15,137 INFO L225 Difference]: With dead ends: 292 [2024-09-12 18:51:15,137 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 18:51:15,137 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 18:51:15,138 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 18:51:15,138 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 18:51:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 18:51:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 18:51:15,195 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 18:51:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 361 transitions. [2024-09-12 18:51:15,197 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 361 transitions. Word has length 65 [2024-09-12 18:51:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:15,197 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 361 transitions. [2024-09-12 18:51:15,197 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 18:51:15,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 361 transitions. [2024-09-12 18:51:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 18:51:15,198 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:15,198 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 18:51:15,198 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:51:15,198 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:15,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,198 INFO L85 PathProgramCache]: Analyzing trace with hash 200341378, now seen corresponding path program 1 times [2024-09-12 18:51:15,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:15,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942031260] [2024-09-12 18:51:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:15,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,280 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 18:51:15,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:15,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942031260] [2024-09-12 18:51:15,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942031260] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:15,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:15,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:51:15,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714803344] [2024-09-12 18:51:15,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:15,281 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:15,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:15,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:15,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:15,281 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 18:51:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:15,848 INFO L93 Difference]: Finished difference Result 294 states and 364 transitions. [2024-09-12 18:51:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:51:15,849 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 18:51:15,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:15,850 INFO L225 Difference]: With dead ends: 294 [2024-09-12 18:51:15,850 INFO L226 Difference]: Without dead ends: 293 [2024-09-12 18:51:15,850 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 18:51:15,851 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, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:15,851 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 183 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:51:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-09-12 18:51:15,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-09-12 18:51:15,910 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 18:51:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 363 transitions. [2024-09-12 18:51:15,912 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 363 transitions. Word has length 65 [2024-09-12 18:51:15,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:15,912 INFO L474 AbstractCegarLoop]: Abstraction has 293 states and 363 transitions. [2024-09-12 18:51:15,912 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 18:51:15,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,913 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 363 transitions. [2024-09-12 18:51:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:51:15,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:15,913 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 18:51:15,913 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:51:15,913 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:15,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1916046509, now seen corresponding path program 1 times [2024-09-12 18:51:15,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:15,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023999882] [2024-09-12 18:51:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:15,982 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 18:51:15,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023999882] [2024-09-12 18:51:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023999882] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:15,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:15,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:15,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483978604] [2024-09-12 18:51:15,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:15,983 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:15,984 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 18:51:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:16,252 INFO L93 Difference]: Finished difference Result 311 states and 374 transitions. [2024-09-12 18:51:16,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:16,252 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 18:51:16,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:16,258 INFO L225 Difference]: With dead ends: 311 [2024-09-12 18:51:16,258 INFO L226 Difference]: Without dead ends: 307 [2024-09-12 18:51:16,259 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 18:51:16,259 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:16,259 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 179 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:51:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-09-12 18:51:16,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 299. [2024-09-12 18:51:16,326 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 18:51:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 368 transitions. [2024-09-12 18:51:16,328 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 368 transitions. Word has length 66 [2024-09-12 18:51:16,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:16,328 INFO L474 AbstractCegarLoop]: Abstraction has 299 states and 368 transitions. [2024-09-12 18:51:16,328 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 18:51:16,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,328 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 368 transitions. [2024-09-12 18:51:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:51:16,329 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:16,329 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 18:51:16,329 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 18:51:16,329 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 18:51:16,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1834684911, now seen corresponding path program 1 times [2024-09-12 18:51:16,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:16,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7955967] [2024-09-12 18:51:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:16,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,410 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 18:51:16,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:16,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7955967] [2024-09-12 18:51:16,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7955967] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:16,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:16,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:16,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943055998] [2024-09-12 18:51:16,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:16,411 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:16,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:16,412 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 18:51:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:16,510 INFO L93 Difference]: Finished difference Result 305 states and 373 transitions. [2024-09-12 18:51:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:16,510 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 18:51:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:16,512 INFO L225 Difference]: With dead ends: 305 [2024-09-12 18:51:16,512 INFO L226 Difference]: Without dead ends: 303 [2024-09-12 18:51:16,512 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 18:51:16,512 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 18:51:16,512 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 18:51:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-09-12 18:51:16,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2024-09-12 18:51:16,576 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 18:51:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 371 transitions. [2024-09-12 18:51:16,577 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 371 transitions. Word has length 68 [2024-09-12 18:51:16,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:16,577 INFO L474 AbstractCegarLoop]: Abstraction has 303 states and 371 transitions. [2024-09-12 18:51:16,577 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 18:51:16,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 371 transitions. [2024-09-12 18:51:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:51:16,578 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:16,578 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 18:51:16,578 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 18:51:16,579 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:16,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1634439153, now seen corresponding path program 1 times [2024-09-12 18:51:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482867513] [2024-09-12 18:51:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:16,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,634 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 18:51:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482867513] [2024-09-12 18:51:16,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482867513] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:16,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:16,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:51:16,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151311125] [2024-09-12 18:51:16,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:16,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:51:16,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:51:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:51:16,636 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 18:51:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:16,894 INFO L93 Difference]: Finished difference Result 334 states and 405 transitions. [2024-09-12 18:51:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:16,894 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 18:51:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:16,895 INFO L225 Difference]: With dead ends: 334 [2024-09-12 18:51:16,895 INFO L226 Difference]: Without dead ends: 332 [2024-09-12 18:51:16,896 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 18:51:16,896 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 18:51:16,896 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 18:51:16,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-09-12 18:51:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 313. [2024-09-12 18:51:16,939 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 18:51:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 384 transitions. [2024-09-12 18:51:16,940 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 384 transitions. Word has length 68 [2024-09-12 18:51:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:16,941 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 384 transitions. [2024-09-12 18:51:16,941 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 18:51:16,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 384 transitions. [2024-09-12 18:51:16,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 18:51:16,942 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:16,942 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 18:51:16,942 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 18:51:16,942 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:16,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash 467542024, now seen corresponding path program 1 times [2024-09-12 18:51:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:16,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60913791] [2024-09-12 18:51:16,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:16,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:16,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134219960] [2024-09-12 18:51:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:16,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:16,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:16,952 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 18:51:16,953 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 18:51:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:16,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:51:16,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:17,109 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 18:51:17,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:17,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:17,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60913791] [2024-09-12 18:51:17,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:17,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134219960] [2024-09-12 18:51:17,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134219960] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:17,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:17,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 18:51:17,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195902505] [2024-09-12 18:51:17,231 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:17,231 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:17,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:17,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:17,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:51:17,232 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 18:51:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:17,686 INFO L93 Difference]: Finished difference Result 325 states and 390 transitions. [2024-09-12 18:51:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:51:17,686 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 18:51:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:17,688 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:51:17,688 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:51:17,688 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 18:51:17,690 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 18:51:17,690 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 18:51:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:51:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 313. [2024-09-12 18:51:17,738 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 18:51:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 382 transitions. [2024-09-12 18:51:17,740 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 382 transitions. Word has length 71 [2024-09-12 18:51:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:17,740 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 382 transitions. [2024-09-12 18:51:17,740 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 18:51:17,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 382 transitions. [2024-09-12 18:51:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:51:17,741 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:17,741 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 18:51:17,753 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:51:17,941 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 18:51:17,942 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:17,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1608900918, now seen corresponding path program 1 times [2024-09-12 18:51:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:17,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928330291] [2024-09-12 18:51:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:17,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699102068] [2024-09-12 18:51:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:17,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:17,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:17,955 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 18:51:17,956 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 18:51:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:18,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:51:18,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:18,122 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 18:51:18,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:18,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:18,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928330291] [2024-09-12 18:51:18,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:18,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699102068] [2024-09-12 18:51:18,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699102068] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:18,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:18,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 18:51:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768296771] [2024-09-12 18:51:18,541 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:18,541 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:18,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:51:18,542 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 18:51:18,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:18,813 INFO L93 Difference]: Finished difference Result 325 states and 388 transitions. [2024-09-12 18:51:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:18,813 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 18:51:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:18,815 INFO L225 Difference]: With dead ends: 325 [2024-09-12 18:51:18,815 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 18:51:18,815 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 18:51:18,815 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:18,815 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:51:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 18:51:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 313. [2024-09-12 18:51:18,896 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 18:51:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 380 transitions. [2024-09-12 18:51:18,897 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 380 transitions. Word has length 72 [2024-09-12 18:51:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:18,897 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 380 transitions. [2024-09-12 18:51:18,897 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 18:51:18,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 380 transitions. [2024-09-12 18:51:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:51:18,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:18,898 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 18:51:18,910 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:19,101 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 18:51:19,102 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:19,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 719557570, now seen corresponding path program 1 times [2024-09-12 18:51:19,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:19,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256342291] [2024-09-12 18:51:19,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:51:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,188 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 18:51:19,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:19,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256342291] [2024-09-12 18:51:19,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256342291] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:19,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891554816] [2024-09-12 18:51:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:19,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:19,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:19,190 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 18:51:19,191 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 18:51:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:19,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:51:19,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:19,352 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 18:51:19,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:19,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891554816] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:19,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:19,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-09-12 18:51:19,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94251844] [2024-09-12 18:51:19,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:19,353 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:19,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:19,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:51:19,354 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 18:51:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:20,042 INFO L93 Difference]: Finished difference Result 327 states and 397 transitions. [2024-09-12 18:51:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:20,043 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 18:51:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:20,044 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:51:20,044 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:51:20,045 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 18:51:20,045 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 18:51:20,045 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 18:51:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:51:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 313. [2024-09-12 18:51:20,093 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 18:51:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 378 transitions. [2024-09-12 18:51:20,094 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 378 transitions. Word has length 76 [2024-09-12 18:51:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:20,094 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 378 transitions. [2024-09-12 18:51:20,094 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 18:51:20,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 378 transitions. [2024-09-12 18:51:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-09-12 18:51:20,095 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:20,095 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 18:51:20,107 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 18:51:20,295 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 18:51:20,296 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:20,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1067711604, now seen corresponding path program 1 times [2024-09-12 18:51:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:20,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310903682] [2024-09-12 18:51:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:20,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:20,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948043606] [2024-09-12 18:51:20,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:20,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:20,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:20,308 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 18:51:20,314 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 18:51:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:20,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:20,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:20,396 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 18:51:20,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:20,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310903682] [2024-09-12 18:51:20,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:20,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948043606] [2024-09-12 18:51:20,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948043606] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:20,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:20,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:20,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558182183] [2024-09-12 18:51:20,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:20,398 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:20,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:20,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:20,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:20,398 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 18:51:20,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:20,900 INFO L93 Difference]: Finished difference Result 332 states and 378 transitions. [2024-09-12 18:51:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:20,900 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 18:51:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:20,902 INFO L225 Difference]: With dead ends: 332 [2024-09-12 18:51:20,902 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:51:20,902 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 18:51:20,903 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 92 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:20,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 193 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:51:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:51:20,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 313. [2024-09-12 18:51:20,954 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 18:51:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 377 transitions. [2024-09-12 18:51:20,956 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 377 transitions. Word has length 75 [2024-09-12 18:51:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:20,956 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 377 transitions. [2024-09-12 18:51:20,956 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 18:51:20,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:20,956 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 377 transitions. [2024-09-12 18:51:20,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:51:20,957 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:20,957 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 18:51:20,968 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 18:51:21,157 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 18:51:21,158 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:21,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:21,158 INFO L85 PathProgramCache]: Analyzing trace with hash 831448346, now seen corresponding path program 1 times [2024-09-12 18:51:21,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:21,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478040764] [2024-09-12 18:51:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:21,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:51:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-09-12 18:51:21,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478040764] [2024-09-12 18:51:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478040764] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:21,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980075832] [2024-09-12 18:51:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:21,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:21,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:21,282 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 18:51:21,283 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 18:51:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:21,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:51:21,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:21,449 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 18:51:21,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:21,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980075832] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:21,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:21,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-09-12 18:51:21,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462876747] [2024-09-12 18:51:21,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:21,450 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:21,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:21,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:21,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:21,451 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 18:51:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:22,119 INFO L93 Difference]: Finished difference Result 327 states and 394 transitions. [2024-09-12 18:51:22,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:22,119 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 18:51:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:22,120 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:51:22,121 INFO L226 Difference]: Without dead ends: 326 [2024-09-12 18:51:22,121 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:22,121 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 61 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:22,122 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 177 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:51:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-09-12 18:51:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 313. [2024-09-12 18:51:22,192 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 18:51:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 375 transitions. [2024-09-12 18:51:22,193 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 375 transitions. Word has length 77 [2024-09-12 18:51:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:22,194 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 375 transitions. [2024-09-12 18:51:22,194 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 18:51:22,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 375 transitions. [2024-09-12 18:51:22,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:51:22,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:22,194 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 18:51:22,207 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:22,395 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 18:51:22,395 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:22,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1260678714, now seen corresponding path program 1 times [2024-09-12 18:51:22,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:22,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129261403] [2024-09-12 18:51:22,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:22,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173104355] [2024-09-12 18:51:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:22,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:22,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:22,405 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 18:51:22,406 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 18:51:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:22,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:51:22,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:22,576 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 18:51:22,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:22,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129261403] [2024-09-12 18:51:22,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173104355] [2024-09-12 18:51:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173104355] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:22,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:22,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:51:22,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921250669] [2024-09-12 18:51:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:22,578 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:51:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:51:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:51:22,578 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 18:51:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:23,046 INFO L93 Difference]: Finished difference Result 334 states and 375 transitions. [2024-09-12 18:51:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:51:23,047 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 18:51:23,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:23,048 INFO L225 Difference]: With dead ends: 334 [2024-09-12 18:51:23,048 INFO L226 Difference]: Without dead ends: 331 [2024-09-12 18:51:23,048 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 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 18:51:23,049 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 92 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:23,049 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 196 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:51:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-09-12 18:51:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 313. [2024-09-12 18:51:23,100 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 18:51:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2024-09-12 18:51:23,101 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 76 [2024-09-12 18:51:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:23,101 INFO L474 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2024-09-12 18:51:23,102 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 18:51:23,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2024-09-12 18:51:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-09-12 18:51:23,102 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:23,102 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 18:51:23,114 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 18:51:23,303 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 18:51:23,303 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 18:51:23,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1466695806, now seen corresponding path program 1 times [2024-09-12 18:51:23,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:23,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507708519] [2024-09-12 18:51:23,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:23,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:51:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,472 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 18:51:23,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507708519] [2024-09-12 18:51:23,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507708519] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293132143] [2024-09-12 18:51:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:23,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:23,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:23,474 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 18:51:23,478 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 18:51:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:23,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:51:23,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:23,670 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 18:51:23,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:23,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293132143] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:23,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:23,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-09-12 18:51:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16052465] [2024-09-12 18:51:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:23,671 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:51:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:23,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:51:23,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:23,673 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 18:51:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:24,463 INFO L93 Difference]: Finished difference Result 336 states and 397 transitions. [2024-09-12 18:51:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:51:24,463 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 18:51:24,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:24,465 INFO L225 Difference]: With dead ends: 336 [2024-09-12 18:51:24,465 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 18:51:24,465 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 18:51:24,466 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 62 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 18:51:24,466 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 18:51:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 18:51:24,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 309. [2024-09-12 18:51:24,521 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 18:51:24,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 364 transitions. [2024-09-12 18:51:24,522 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 364 transitions. Word has length 81 [2024-09-12 18:51:24,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:24,522 INFO L474 AbstractCegarLoop]: Abstraction has 309 states and 364 transitions. [2024-09-12 18:51:24,522 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 18:51:24,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 364 transitions. [2024-09-12 18:51:24,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 18:51:24,523 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:24,523 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 18:51:24,535 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 18:51:24,723 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 18:51:24,724 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 18:51:24,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash 718558886, now seen corresponding path program 1 times [2024-09-12 18:51:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:24,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623931594] [2024-09-12 18:51:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967554262] [2024-09-12 18:51:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:24,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:24,734 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 18:51:24,737 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 18:51:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:24,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:51:24,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:24,902 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 18:51:24,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:51:24,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:24,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623931594] [2024-09-12 18:51:24,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:24,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967554262] [2024-09-12 18:51:24,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967554262] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:51:24,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:51:24,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:51:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679886343] [2024-09-12 18:51:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:51:24,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:51:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:51:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:51:24,904 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 18:51:25,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:25,250 INFO L93 Difference]: Finished difference Result 327 states and 372 transitions. [2024-09-12 18:51:25,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:51:25,250 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 18:51:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:25,252 INFO L225 Difference]: With dead ends: 327 [2024-09-12 18:51:25,252 INFO L226 Difference]: Without dead ends: 314 [2024-09-12 18:51:25,252 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 18:51:25,252 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 32 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:25,253 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 336 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:51:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-09-12 18:51:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2024-09-12 18:51:25,315 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 18:51:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 358 transitions. [2024-09-12 18:51:25,316 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 358 transitions. Word has length 80 [2024-09-12 18:51:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:25,316 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 358 transitions. [2024-09-12 18:51:25,316 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 18:51:25,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 358 transitions. [2024-09-12 18:51:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 18:51:25,319 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:25,319 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 18:51:25,333 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 18:51:25,519 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 18:51:25,519 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:25,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:25,520 INFO L85 PathProgramCache]: Analyzing trace with hash -954485580, now seen corresponding path program 1 times [2024-09-12 18:51:25,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:25,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532393270] [2024-09-12 18:51:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:25,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:25,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75618295] [2024-09-12 18:51:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:25,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:25,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:25,534 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 18:51:25,535 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 18:51:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:25,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:51:25,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:25,844 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 18:51:25,844 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:25,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:25,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532393270] [2024-09-12 18:51:25,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:25,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75618295] [2024-09-12 18:51:25,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75618295] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:25,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:25,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:51:25,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084008605] [2024-09-12 18:51:25,928 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:25,928 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:51:25,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:25,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:51:25,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:25,928 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 18:51:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:26,521 INFO L93 Difference]: Finished difference Result 461 states and 571 transitions. [2024-09-12 18:51:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:51:26,522 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 18:51:26,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:26,524 INFO L225 Difference]: With dead ends: 461 [2024-09-12 18:51:26,524 INFO L226 Difference]: Without dead ends: 457 [2024-09-12 18:51:26,524 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:26,524 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 432 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:26,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 334 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:51:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-09-12 18:51:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 382. [2024-09-12 18:51:26,591 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 18:51:26,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 478 transitions. [2024-09-12 18:51:26,592 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 478 transitions. Word has length 82 [2024-09-12 18:51:26,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:26,592 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 478 transitions. [2024-09-12 18:51:26,592 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 18:51:26,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:26,593 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 478 transitions. [2024-09-12 18:51:26,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:51:26,593 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:26,593 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 18:51:26,605 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 18:51:26,793 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 18:51:26,794 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:26,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:26,794 INFO L85 PathProgramCache]: Analyzing trace with hash 475718167, now seen corresponding path program 1 times [2024-09-12 18:51:26,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:26,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130304287] [2024-09-12 18:51:26,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:26,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:26,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540583644] [2024-09-12 18:51:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:26,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:26,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:26,804 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 18:51:26,805 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 18:51:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:26,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:51:26,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:27,046 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 18:51:27,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:31,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:31,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130304287] [2024-09-12 18:51:31,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:31,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540583644] [2024-09-12 18:51:31,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540583644] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:31,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:31,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:51:31,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176347723] [2024-09-12 18:51:31,680 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:31,680 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:51:31,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:31,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:51:31,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2024-09-12 18:51:31,681 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 18:51:32,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:32,022 INFO L93 Difference]: Finished difference Result 397 states and 487 transitions. [2024-09-12 18:51:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:51:32,023 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 18:51:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:32,024 INFO L225 Difference]: With dead ends: 397 [2024-09-12 18:51:32,024 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 18:51:32,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:51:32,025 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 186 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:32,025 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:51:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 18:51:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 376. [2024-09-12 18:51:32,138 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 18:51:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 463 transitions. [2024-09-12 18:51:32,139 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 463 transitions. Word has length 83 [2024-09-12 18:51:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:32,140 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 463 transitions. [2024-09-12 18:51:32,140 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 18:51:32,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 463 transitions. [2024-09-12 18:51:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:51:32,140 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:32,141 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 18:51:32,152 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 18:51:32,344 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 18:51:32,345 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:32,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1862361366, now seen corresponding path program 1 times [2024-09-12 18:51:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:32,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452147118] [2024-09-12 18:51:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:32,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137418769] [2024-09-12 18:51:32,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:32,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:32,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:32,355 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 18:51:32,356 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 18:51:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:32,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:51:32,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:32,689 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 18:51:32,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:32,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:32,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452147118] [2024-09-12 18:51:32,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:32,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137418769] [2024-09-12 18:51:32,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137418769] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:32,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:51:32,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137987120] [2024-09-12 18:51:32,783 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:32,783 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:51:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:51:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:51:32,784 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 18:51:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:33,549 INFO L93 Difference]: Finished difference Result 500 states and 646 transitions. [2024-09-12 18:51:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:51:33,549 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 18:51:33,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:33,551 INFO L225 Difference]: With dead ends: 500 [2024-09-12 18:51:33,551 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 18:51:33,551 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:51:33,552 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 397 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:33,552 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 261 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:51:33,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 18:51:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2024-09-12 18:51:33,652 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 18:51:33,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 617 transitions. [2024-09-12 18:51:33,654 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 617 transitions. Word has length 84 [2024-09-12 18:51:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:33,654 INFO L474 AbstractCegarLoop]: Abstraction has 469 states and 617 transitions. [2024-09-12 18:51:33,654 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 18:51:33,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 617 transitions. [2024-09-12 18:51:33,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 18:51:33,655 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:33,655 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 18:51:33,667 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 18:51:33,859 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 18:51:33,860 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:33,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1898627577, now seen corresponding path program 1 times [2024-09-12 18:51:33,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:33,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784028132] [2024-09-12 18:51:33,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:33,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:33,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1217646972] [2024-09-12 18:51:33,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:33,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:33,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:33,871 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 18:51:33,873 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 18:51:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:33,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:51:33,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:34,210 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 18:51:34,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:34,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784028132] [2024-09-12 18:51:34,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217646972] [2024-09-12 18:51:34,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217646972] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:34,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:34,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:51:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531188829] [2024-09-12 18:51:34,858 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:34,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:51:34,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:34,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:51:34,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:51:34,859 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 18:51:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:35,945 INFO L93 Difference]: Finished difference Result 552 states and 730 transitions. [2024-09-12 18:51:35,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:51:35,945 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 18:51:35,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:35,947 INFO L225 Difference]: With dead ends: 552 [2024-09-12 18:51:35,947 INFO L226 Difference]: Without dead ends: 550 [2024-09-12 18:51:35,948 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 18:51:35,948 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 391 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:35,948 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 329 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:51:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-09-12 18:51:36,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 504. [2024-09-12 18:51:36,050 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 18:51:36,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 668 transitions. [2024-09-12 18:51:36,052 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 668 transitions. Word has length 85 [2024-09-12 18:51:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:36,052 INFO L474 AbstractCegarLoop]: Abstraction has 504 states and 668 transitions. [2024-09-12 18:51:36,052 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 18:51:36,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 668 transitions. [2024-09-12 18:51:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-09-12 18:51:36,053 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:36,053 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 18:51:36,065 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:36,257 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 18:51:36,257 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:36,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1272087176, now seen corresponding path program 1 times [2024-09-12 18:51:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:36,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931731085] [2024-09-12 18:51:36,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:36,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:36,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430642571] [2024-09-12 18:51:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:36,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:36,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:36,274 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 18:51:36,275 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 18:51:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:36,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:51:36,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:36,654 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 18:51:36,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:36,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:36,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931731085] [2024-09-12 18:51:36,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:36,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430642571] [2024-09-12 18:51:36,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430642571] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:36,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:36,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:51:36,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099609993] [2024-09-12 18:51:36,741 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:36,742 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:51:36,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:36,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:51:36,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:51:36,742 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 18:51:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:37,901 INFO L93 Difference]: Finished difference Result 533 states and 697 transitions. [2024-09-12 18:51:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:51:37,902 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 18:51:37,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:37,907 INFO L225 Difference]: With dead ends: 533 [2024-09-12 18:51:37,908 INFO L226 Difference]: Without dead ends: 529 [2024-09-12 18:51:37,908 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 18:51:37,908 INFO L434 NwaCegarLoop]: 74 mSDtfsCounter, 319 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:37,909 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 395 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:51:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-09-12 18:51:38,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 453. [2024-09-12 18:51:38,010 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 18:51:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 587 transitions. [2024-09-12 18:51:38,012 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 587 transitions. Word has length 86 [2024-09-12 18:51:38,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:38,013 INFO L474 AbstractCegarLoop]: Abstraction has 453 states and 587 transitions. [2024-09-12 18:51:38,013 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 18:51:38,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 587 transitions. [2024-09-12 18:51:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-09-12 18:51:38,014 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:38,014 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 18:51:38,029 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 18:51:38,215 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 18:51:38,215 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:38,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -779996709, now seen corresponding path program 1 times [2024-09-12 18:51:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459016827] [2024-09-12 18:51:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072999273] [2024-09-12 18:51:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:38,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:38,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:38,234 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 18:51:38,249 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 18:51:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:38,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:51:38,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:38,624 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 18:51:38,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:40,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:40,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459016827] [2024-09-12 18:51:40,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:40,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072999273] [2024-09-12 18:51:40,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072999273] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:40,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:51:40,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388175231] [2024-09-12 18:51:40,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:40,302 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:51:40,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:51:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=78, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:51:40,303 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 18:51:41,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:41,737 INFO L93 Difference]: Finished difference Result 496 states and 643 transitions. [2024-09-12 18:51:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:51:41,737 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 18:51:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:41,739 INFO L225 Difference]: With dead ends: 496 [2024-09-12 18:51:41,739 INFO L226 Difference]: Without dead ends: 492 [2024-09-12 18:51:41,739 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=107, Unknown=1, NotChecked=0, Total=156 [2024-09-12 18:51:41,740 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 179 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:41,740 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 348 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:51:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-09-12 18:51:41,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 442. [2024-09-12 18:51:41,842 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 18:51:41,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 566 transitions. [2024-09-12 18:51:41,843 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 566 transitions. Word has length 87 [2024-09-12 18:51:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:41,843 INFO L474 AbstractCegarLoop]: Abstraction has 442 states and 566 transitions. [2024-09-12 18:51:41,844 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 18:51:41,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 566 transitions. [2024-09-12 18:51:41,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-09-12 18:51:41,844 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:41,844 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 18:51:41,856 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 18:51:42,045 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 18:51:42,045 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 18:51:42,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:42,046 INFO L85 PathProgramCache]: Analyzing trace with hash -9024891, now seen corresponding path program 2 times [2024-09-12 18:51:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:42,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304335018] [2024-09-12 18:51:42,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:42,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:42,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552322301] [2024-09-12 18:51:42,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:51:42,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:42,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:42,055 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 18:51:42,060 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 18:51:42,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:51:42,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:51:42,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:51:42,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:42,434 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 18:51:42,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:42,594 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 18:51:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304335018] [2024-09-12 18:51:42,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552322301] [2024-09-12 18:51:42,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552322301] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:42,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:51:42,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2024-09-12 18:51:42,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716163847] [2024-09-12 18:51:42,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:42,595 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:51:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:51:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:51:42,596 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 18:51:44,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:44,894 INFO L93 Difference]: Finished difference Result 551 states and 723 transitions. [2024-09-12 18:51:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:51:44,894 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 18:51:44,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:44,897 INFO L225 Difference]: With dead ends: 551 [2024-09-12 18:51:44,897 INFO L226 Difference]: Without dead ends: 549 [2024-09-12 18:51:44,897 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 18:51:44,897 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 93 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:44,898 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 331 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-09-12 18:51:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-09-12 18:51:45,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 498. [2024-09-12 18:51:45,016 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 18:51:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 643 transitions. [2024-09-12 18:51:45,018 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 643 transitions. Word has length 91 [2024-09-12 18:51:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:45,018 INFO L474 AbstractCegarLoop]: Abstraction has 498 states and 643 transitions. [2024-09-12 18:51:45,018 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 18:51:45,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:45,019 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 643 transitions. [2024-09-12 18:51:45,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:51:45,019 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:45,019 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 18:51:45,032 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:45,220 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 18:51:45,220 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:45,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:45,221 INFO L85 PathProgramCache]: Analyzing trace with hash 234821100, now seen corresponding path program 1 times [2024-09-12 18:51:45,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:45,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030843652] [2024-09-12 18:51:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:45,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433322776] [2024-09-12 18:51:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:45,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:45,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:45,232 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 18:51:45,238 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 18:51:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:45,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:51:45,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:45,592 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 18:51:45,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:47,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:47,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030843652] [2024-09-12 18:51:47,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:47,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433322776] [2024-09-12 18:51:47,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433322776] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:47,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:47,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:51:47,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172933888] [2024-09-12 18:51:47,167 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:47,167 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:51:47,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:47,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:51:47,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=139, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:51:47,168 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 18:51:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:48,312 INFO L93 Difference]: Finished difference Result 670 states and 896 transitions. [2024-09-12 18:51:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:51:48,313 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 18:51:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:48,315 INFO L225 Difference]: With dead ends: 670 [2024-09-12 18:51:48,315 INFO L226 Difference]: Without dead ends: 668 [2024-09-12 18:51:48,315 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=95, Invalid=246, Unknown=1, NotChecked=0, Total=342 [2024-09-12 18:51:48,316 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 367 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:48,316 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 429 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:51:48,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-09-12 18:51:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 634. [2024-09-12 18:51:48,485 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 18:51:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 852 transitions. [2024-09-12 18:51:48,487 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 852 transitions. Word has length 93 [2024-09-12 18:51:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:48,488 INFO L474 AbstractCegarLoop]: Abstraction has 634 states and 852 transitions. [2024-09-12 18:51:48,488 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 18:51:48,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 852 transitions. [2024-09-12 18:51:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-09-12 18:51:48,489 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:48,489 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 18:51:48,501 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 18:51:48,689 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 18:51:48,694 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:48,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1310480404, now seen corresponding path program 1 times [2024-09-12 18:51:48,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:48,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785968345] [2024-09-12 18:51:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:48,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051816270] [2024-09-12 18:51:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:48,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:48,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:48,711 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 18:51:48,715 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 18:51:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:48,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 18:51:48,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:49,029 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 18:51:49,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785968345] [2024-09-12 18:51:49,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:49,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051816270] [2024-09-12 18:51:49,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051816270] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:49,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:49,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:51:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409487521] [2024-09-12 18:51:49,823 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:49,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:51:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:49,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:51:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:51:49,824 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 18:51:51,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:51,150 INFO L93 Difference]: Finished difference Result 658 states and 873 transitions. [2024-09-12 18:51:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:51:51,151 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 18:51:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:51,153 INFO L225 Difference]: With dead ends: 658 [2024-09-12 18:51:51,153 INFO L226 Difference]: Without dead ends: 651 [2024-09-12 18:51:51,153 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:51:51,153 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 383 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:51,154 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 421 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:51:51,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-09-12 18:51:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 613. [2024-09-12 18:51:51,329 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 18:51:51,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 798 transitions. [2024-09-12 18:51:51,331 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 798 transitions. Word has length 94 [2024-09-12 18:51:51,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:51,331 INFO L474 AbstractCegarLoop]: Abstraction has 613 states and 798 transitions. [2024-09-12 18:51:51,331 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 18:51:51,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 798 transitions. [2024-09-12 18:51:51,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-09-12 18:51:51,332 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:51,332 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 18:51:51,344 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-09-12 18:51:51,536 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 18:51:51,537 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:51,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash 731094512, now seen corresponding path program 1 times [2024-09-12 18:51:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:51,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578222792] [2024-09-12 18:51:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:51,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:51,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721070233] [2024-09-12 18:51:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:51,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:51,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:51,546 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 18:51:51,547 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 18:51:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:51,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:51:51,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:52,065 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 18:51:52,065 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:52,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:52,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578222792] [2024-09-12 18:51:52,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:52,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721070233] [2024-09-12 18:51:52,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721070233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:52,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:52,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:51:52,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633164560] [2024-09-12 18:51:52,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:52,211 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:51:52,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:52,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:51:52,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:51:52,211 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 18:51:53,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:53,343 INFO L93 Difference]: Finished difference Result 662 states and 861 transitions. [2024-09-12 18:51:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:51:53,343 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 18:51:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:53,345 INFO L225 Difference]: With dead ends: 662 [2024-09-12 18:51:53,345 INFO L226 Difference]: Without dead ends: 657 [2024-09-12 18:51:53,348 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:51:53,351 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 426 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:53,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 350 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:51:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-09-12 18:51:53,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 524. [2024-09-12 18:51:53,512 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 18:51:53,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 661 transitions. [2024-09-12 18:51:53,513 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 661 transitions. Word has length 97 [2024-09-12 18:51:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:53,514 INFO L474 AbstractCegarLoop]: Abstraction has 524 states and 661 transitions. [2024-09-12 18:51:53,514 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 18:51:53,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 661 transitions. [2024-09-12 18:51:53,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 18:51:53,515 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:53,515 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 18:51:53,527 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 18:51:53,715 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 18:51:53,715 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:53,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:53,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1189093488, now seen corresponding path program 1 times [2024-09-12 18:51:53,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:53,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735157318] [2024-09-12 18:51:53,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:53,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1765280906] [2024-09-12 18:51:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:53,727 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 18:51:53,731 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 18:51:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:53,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:51:53,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:54,032 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 18:51:54,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:54,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:54,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735157318] [2024-09-12 18:51:54,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:54,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765280906] [2024-09-12 18:51:54,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765280906] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:54,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:51:54,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:51:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532241311] [2024-09-12 18:51:54,427 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:54,427 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:51:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:54,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:51:54,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:51:54,428 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 18:51:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:55,862 INFO L93 Difference]: Finished difference Result 547 states and 687 transitions. [2024-09-12 18:51:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:51:55,863 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 18:51:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:55,865 INFO L225 Difference]: With dead ends: 547 [2024-09-12 18:51:55,865 INFO L226 Difference]: Without dead ends: 543 [2024-09-12 18:51:55,865 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:51:55,865 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 151 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:55,865 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 339 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-09-12 18:51:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-09-12 18:51:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 534. [2024-09-12 18:51:56,030 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 18:51:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 667 transitions. [2024-09-12 18:51:56,031 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 667 transitions. Word has length 98 [2024-09-12 18:51:56,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:56,032 INFO L474 AbstractCegarLoop]: Abstraction has 534 states and 667 transitions. [2024-09-12 18:51:56,032 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 18:51:56,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:56,032 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 667 transitions. [2024-09-12 18:51:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:51:56,033 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:56,033 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 18:51:56,046 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-09-12 18:51:56,237 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 18:51:56,238 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 18:51:56,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:56,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1604202664, now seen corresponding path program 1 times [2024-09-12 18:51:56,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:56,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959331277] [2024-09-12 18:51:56,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:56,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:51:56,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953454126] [2024-09-12 18:51:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:56,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:56,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:56,256 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 18:51:56,257 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 18:51:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:56,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:51:56,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:56,663 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 18:51:56,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:56,943 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 18:51:56,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:56,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959331277] [2024-09-12 18:51:56,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:51:56,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953454126] [2024-09-12 18:51:56,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953454126] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:56,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:51:56,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 18:51:56,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659714625] [2024-09-12 18:51:56,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:56,944 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:51:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:51:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:51:56,945 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 18:51:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:51:59,088 INFO L93 Difference]: Finished difference Result 684 states and 874 transitions. [2024-09-12 18:51:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:51:59,090 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 18:51:59,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:51:59,093 INFO L225 Difference]: With dead ends: 684 [2024-09-12 18:51:59,093 INFO L226 Difference]: Without dead ends: 596 [2024-09-12 18:51:59,093 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 18:51:59,093 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 204 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:51:59,094 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 326 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:51:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-09-12 18:51:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 495. [2024-09-12 18:51:59,269 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 18:51:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 622 transitions. [2024-09-12 18:51:59,271 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 622 transitions. Word has length 102 [2024-09-12 18:51:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:51:59,271 INFO L474 AbstractCegarLoop]: Abstraction has 495 states and 622 transitions. [2024-09-12 18:51:59,271 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 18:51:59,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 622 transitions. [2024-09-12 18:51:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:51:59,272 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:51:59,272 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 18:51:59,284 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 18:51:59,476 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 18:51:59,477 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:51:59,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:51:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1632430508, now seen corresponding path program 1 times [2024-09-12 18:51:59,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:51:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505245190] [2024-09-12 18:51:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:51:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:51:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:51:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:51:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,533 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:51:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,534 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:51:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,535 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:51:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:51:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,538 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:51:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:51:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:51:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:51:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,544 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 18:51:59,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:51:59,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505245190] [2024-09-12 18:51:59,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505245190] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:51:59,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148434650] [2024-09-12 18:51:59,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:51:59,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:51:59,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:51:59,546 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 18:51:59,547 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 18:51:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:51:59,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:51:59,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:51:59,738 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 18:51:59,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:51:59,873 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 18:51:59,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148434650] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:51:59,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:51:59,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-09-12 18:51:59,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133714377] [2024-09-12 18:51:59,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:51:59,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:51:59,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:51:59,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:51:59,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:51:59,875 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 18:52:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:01,056 INFO L93 Difference]: Finished difference Result 820 states and 1006 transitions. [2024-09-12 18:52:01,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:52:01,057 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 18:52:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:01,059 INFO L225 Difference]: With dead ends: 820 [2024-09-12 18:52:01,059 INFO L226 Difference]: Without dead ends: 819 [2024-09-12 18:52:01,060 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 18:52:01,060 INFO L434 NwaCegarLoop]: 125 mSDtfsCounter, 779 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:01,060 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 627 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:01,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-09-12 18:52:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 651. [2024-09-12 18:52:01,324 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 18:52:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 863 transitions. [2024-09-12 18:52:01,327 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 863 transitions. Word has length 107 [2024-09-12 18:52:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:01,327 INFO L474 AbstractCegarLoop]: Abstraction has 651 states and 863 transitions. [2024-09-12 18:52:01,327 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 18:52:01,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 863 transitions. [2024-09-12 18:52:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 18:52:01,328 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:01,328 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 18:52:01,340 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 18:52:01,529 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 18:52:01,529 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:01,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -536561748, now seen corresponding path program 1 times [2024-09-12 18:52:01,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:01,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571334149] [2024-09-12 18:52:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,622 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,637 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 18:52:01,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:01,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571334149] [2024-09-12 18:52:01,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571334149] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:01,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789377744] [2024-09-12 18:52:01,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:01,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:01,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:01,641 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 18:52:01,645 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 18:52:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:01,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:52:01,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:01,813 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 18:52:01,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:01,935 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 18:52:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789377744] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:01,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:01,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 18:52:01,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858783230] [2024-09-12 18:52:01,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:01,938 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:52:01,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:01,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:52:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:52:01,939 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 18:52:03,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:03,184 INFO L93 Difference]: Finished difference Result 978 states and 1277 transitions. [2024-09-12 18:52:03,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 18:52:03,185 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 18:52:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:03,188 INFO L225 Difference]: With dead ends: 978 [2024-09-12 18:52:03,188 INFO L226 Difference]: Without dead ends: 977 [2024-09-12 18:52:03,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=572, Invalid=1498, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 18:52:03,189 INFO L434 NwaCegarLoop]: 112 mSDtfsCounter, 1106 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:03,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 679 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:03,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-09-12 18:52:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 787. [2024-09-12 18:52:03,502 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 18:52:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1068 transitions. [2024-09-12 18:52:03,503 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1068 transitions. Word has length 107 [2024-09-12 18:52:03,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:03,504 INFO L474 AbstractCegarLoop]: Abstraction has 787 states and 1068 transitions. [2024-09-12 18:52:03,504 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 18:52:03,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1068 transitions. [2024-09-12 18:52:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 18:52:03,505 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:03,505 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 18:52:03,516 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 18:52:03,705 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 18:52:03,705 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:03,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash -933830717, now seen corresponding path program 1 times [2024-09-12 18:52:03,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:03,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723844200] [2024-09-12 18:52:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,769 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,772 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,774 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,781 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,790 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 18:52:03,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:03,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723844200] [2024-09-12 18:52:03,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723844200] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:03,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978175704] [2024-09-12 18:52:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:03,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:03,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:03,793 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 18:52:03,794 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 18:52:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:03,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:03,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:03,969 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 18:52:03,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:04,067 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 18:52:04,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978175704] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:04,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:04,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-12 18:52:04,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452131062] [2024-09-12 18:52:04,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:04,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:04,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:04,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:04,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:04,069 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 18:52:05,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:05,374 INFO L93 Difference]: Finished difference Result 1303 states and 1809 transitions. [2024-09-12 18:52:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:05,375 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 18:52:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:05,379 INFO L225 Difference]: With dead ends: 1303 [2024-09-12 18:52:05,379 INFO L226 Difference]: Without dead ends: 1301 [2024-09-12 18:52:05,380 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 18:52:05,380 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 242 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:05,380 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 334 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:52:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-09-12 18:52:05,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1137. [2024-09-12 18:52:05,906 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 18:52:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1568 transitions. [2024-09-12 18:52:05,909 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1568 transitions. Word has length 108 [2024-09-12 18:52:05,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:05,909 INFO L474 AbstractCegarLoop]: Abstraction has 1137 states and 1568 transitions. [2024-09-12 18:52:05,909 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 18:52:05,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1568 transitions. [2024-09-12 18:52:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-09-12 18:52:05,910 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:05,910 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 18:52:05,922 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-09-12 18:52:06,110 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 18:52:06,111 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:06,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash 743196851, now seen corresponding path program 1 times [2024-09-12 18:52:06,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721643237] [2024-09-12 18:52:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,177 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 18:52:06,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:06,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721643237] [2024-09-12 18:52:06,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721643237] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:06,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277509285] [2024-09-12 18:52:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:06,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:06,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:06,179 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 18:52:06,180 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 18:52:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:06,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:52:06,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:06,344 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 18:52:06,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:06,449 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 18:52:06,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277509285] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:06,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-12 18:52:06,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378574777] [2024-09-12 18:52:06,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:06,450 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:52:06,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:52:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:06,451 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 18:52:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:07,712 INFO L93 Difference]: Finished difference Result 1583 states and 2188 transitions. [2024-09-12 18:52:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:07,713 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 18:52:07,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:07,717 INFO L225 Difference]: With dead ends: 1583 [2024-09-12 18:52:07,717 INFO L226 Difference]: Without dead ends: 1581 [2024-09-12 18:52:07,718 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 18:52:07,720 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 157 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:07,720 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 354 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:52:07,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-09-12 18:52:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1365. [2024-09-12 18:52:08,311 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 18:52:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1886 transitions. [2024-09-12 18:52:08,314 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1886 transitions. Word has length 110 [2024-09-12 18:52:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:08,314 INFO L474 AbstractCegarLoop]: Abstraction has 1365 states and 1886 transitions. [2024-09-12 18:52:08,314 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 18:52:08,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1886 transitions. [2024-09-12 18:52:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-09-12 18:52:08,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:08,316 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 18:52:08,328 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:08,516 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 18:52:08,517 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:08,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash 314722994, now seen corresponding path program 1 times [2024-09-12 18:52:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:08,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217134328] [2024-09-12 18:52:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:08,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:08,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658168161] [2024-09-12 18:52:08,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:08,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:08,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:08,528 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 18:52:08,529 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 18:52:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:08,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:52:08,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:08,820 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 18:52:08,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:08,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:08,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217134328] [2024-09-12 18:52:08,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:08,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658168161] [2024-09-12 18:52:08,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658168161] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:08,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:08,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:52:08,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755253320] [2024-09-12 18:52:08,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:08,869 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:08,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:08,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:08,870 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 18:52:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:09,973 INFO L93 Difference]: Finished difference Result 1504 states and 2082 transitions. [2024-09-12 18:52:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:09,973 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 18:52:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:09,978 INFO L225 Difference]: With dead ends: 1504 [2024-09-12 18:52:09,978 INFO L226 Difference]: Without dead ends: 1500 [2024-09-12 18:52:09,978 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 18:52:09,979 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 187 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:09,979 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 292 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-09-12 18:52:10,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1361. [2024-09-12 18:52:10,592 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 18:52:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1822 transitions. [2024-09-12 18:52:10,595 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1822 transitions. Word has length 113 [2024-09-12 18:52:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:10,595 INFO L474 AbstractCegarLoop]: Abstraction has 1361 states and 1822 transitions. [2024-09-12 18:52:10,595 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 18:52:10,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1822 transitions. [2024-09-12 18:52:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:52:10,596 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:10,596 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 18:52:10,608 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-09-12 18:52:10,801 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 18:52:10,801 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:10,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1166478284, now seen corresponding path program 1 times [2024-09-12 18:52:10,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:10,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363082023] [2024-09-12 18:52:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:10,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128716202] [2024-09-12 18:52:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:10,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:10,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:10,815 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 18:52:10,816 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 18:52:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:10,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:10,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:11,141 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 18:52:11,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:11,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:11,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363082023] [2024-09-12 18:52:11,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:11,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128716202] [2024-09-12 18:52:11,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128716202] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:11,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:11,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:52:11,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476007926] [2024-09-12 18:52:11,407 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:11,407 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:11,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:11,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:11,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:11,408 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 18:52:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:12,345 INFO L93 Difference]: Finished difference Result 1402 states and 1874 transitions. [2024-09-12 18:52:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:12,345 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 18:52:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:12,349 INFO L225 Difference]: With dead ends: 1402 [2024-09-12 18:52:12,350 INFO L226 Difference]: Without dead ends: 1400 [2024-09-12 18:52:12,350 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 18:52:12,350 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 90 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:12,350 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 187 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:52:12,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-09-12 18:52:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1377. [2024-09-12 18:52:13,040 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 18:52:13,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1843 transitions. [2024-09-12 18:52:13,043 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1843 transitions. Word has length 114 [2024-09-12 18:52:13,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:13,043 INFO L474 AbstractCegarLoop]: Abstraction has 1377 states and 1843 transitions. [2024-09-12 18:52:13,043 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 18:52:13,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1843 transitions. [2024-09-12 18:52:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-09-12 18:52:13,044 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:13,044 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 18:52:13,056 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:13,244 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 18:52:13,245 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:13,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1246902860, now seen corresponding path program 2 times [2024-09-12 18:52:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:13,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941968916] [2024-09-12 18:52:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:13,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:13,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983499663] [2024-09-12 18:52:13,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:52:13,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:13,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:13,256 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 18:52:13,257 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 18:52:13,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:52:13,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:13,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:13,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:13,570 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 18:52:13,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:14,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941968916] [2024-09-12 18:52:14,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983499663] [2024-09-12 18:52:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983499663] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:14,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:14,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:52:14,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583751355] [2024-09-12 18:52:14,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:14,007 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:14,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:14,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:14,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:52:14,007 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 18:52:15,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:15,131 INFO L93 Difference]: Finished difference Result 1421 states and 1896 transitions. [2024-09-12 18:52:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:15,131 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 18:52:15,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:15,135 INFO L225 Difference]: With dead ends: 1421 [2024-09-12 18:52:15,142 INFO L226 Difference]: Without dead ends: 1419 [2024-09-12 18:52:15,142 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 18:52:15,143 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 77 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:15,143 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 257 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-09-12 18:52:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1393. [2024-09-12 18:52:15,907 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 18:52:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1863 transitions. [2024-09-12 18:52:15,914 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1863 transitions. Word has length 114 [2024-09-12 18:52:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:15,914 INFO L474 AbstractCegarLoop]: Abstraction has 1393 states and 1863 transitions. [2024-09-12 18:52:15,915 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 18:52:15,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1863 transitions. [2024-09-12 18:52:15,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:52:15,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:15,916 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 18:52:15,927 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 18:52:16,116 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 18:52:16,117 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:16,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:16,117 INFO L85 PathProgramCache]: Analyzing trace with hash -831282, now seen corresponding path program 1 times [2024-09-12 18:52:16,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:16,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873064016] [2024-09-12 18:52:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791791666] [2024-09-12 18:52:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:16,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:16,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:16,134 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 18:52:16,135 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 18:52:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:16,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:52:16,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:16,424 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 18:52:16,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:16,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873064016] [2024-09-12 18:52:16,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:16,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791791666] [2024-09-12 18:52:16,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791791666] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:16,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:16,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:52:16,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944209453] [2024-09-12 18:52:16,635 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:16,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:16,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:16,636 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 18:52:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:17,630 INFO L93 Difference]: Finished difference Result 1407 states and 1879 transitions. [2024-09-12 18:52:17,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:52:17,631 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 18:52:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:17,635 INFO L225 Difference]: With dead ends: 1407 [2024-09-12 18:52:17,635 INFO L226 Difference]: Without dead ends: 1405 [2024-09-12 18:52:17,639 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:52:17,639 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 55 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:17,640 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 291 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:17,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-09-12 18:52:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1393. [2024-09-12 18:52:18,272 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 18:52:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1861 transitions. [2024-09-12 18:52:18,275 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1861 transitions. Word has length 116 [2024-09-12 18:52:18,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:18,275 INFO L474 AbstractCegarLoop]: Abstraction has 1393 states and 1861 transitions. [2024-09-12 18:52:18,275 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 18:52:18,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:18,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1861 transitions. [2024-09-12 18:52:18,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-09-12 18:52:18,276 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:18,276 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 18:52:18,288 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 18:52:18,476 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 18:52:18,477 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:18,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash -22225074, now seen corresponding path program 2 times [2024-09-12 18:52:18,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:18,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162372308] [2024-09-12 18:52:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:18,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:18,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796200636] [2024-09-12 18:52:18,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:52:18,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:18,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:18,490 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 18:52:18,493 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 18:52:18,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:52:18,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:18,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:52:18,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:18,788 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 18:52:18,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:19,819 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 18:52:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162372308] [2024-09-12 18:52:19,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796200636] [2024-09-12 18:52:19,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796200636] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:19,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:19,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-09-12 18:52:19,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130732787] [2024-09-12 18:52:19,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:19,820 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:52:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:19,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:52:19,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:19,821 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 18:52:24,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:24,657 INFO L93 Difference]: Finished difference Result 1443 states and 1921 transitions. [2024-09-12 18:52:24,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:24,658 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 18:52:24,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:24,664 INFO L225 Difference]: With dead ends: 1443 [2024-09-12 18:52:24,665 INFO L226 Difference]: Without dead ends: 1441 [2024-09-12 18:52:24,665 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 18:52:24,665 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 301 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:24,665 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 354 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-09-12 18:52:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-09-12 18:52:25,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1403. [2024-09-12 18:52:25,329 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 18:52:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1869 transitions. [2024-09-12 18:52:25,332 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1869 transitions. Word has length 116 [2024-09-12 18:52:25,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:25,332 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1869 transitions. [2024-09-12 18:52:25,332 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 18:52:25,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:25,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1869 transitions. [2024-09-12 18:52:25,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:52:25,333 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:25,333 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 18:52:25,344 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-09-12 18:52:25,535 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 18:52:25,535 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:25,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -25769674, now seen corresponding path program 1 times [2024-09-12 18:52:25,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:25,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748695601] [2024-09-12 18:52:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:25,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:25,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018947485] [2024-09-12 18:52:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:25,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:25,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:25,554 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 18:52:25,557 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 18:52:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:25,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:25,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:26,052 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 18:52:26,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:26,815 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 18:52:26,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:26,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748695601] [2024-09-12 18:52:26,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:26,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018947485] [2024-09-12 18:52:26,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018947485] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:26,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:26,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:52:26,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182306895] [2024-09-12 18:52:26,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:26,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:26,817 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 18:52:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:29,424 INFO L93 Difference]: Finished difference Result 1403 states and 1869 transitions. [2024-09-12 18:52:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:29,424 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 18:52:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:29,427 INFO L225 Difference]: With dead ends: 1403 [2024-09-12 18:52:29,427 INFO L226 Difference]: Without dead ends: 1402 [2024-09-12 18:52:29,428 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 18:52:29,428 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:29,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 151 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-09-12 18:52:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-09-12 18:52:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2024-09-12 18:52:30,132 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 18:52:30,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1839 transitions. [2024-09-12 18:52:30,134 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1839 transitions. Word has length 117 [2024-09-12 18:52:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:30,135 INFO L474 AbstractCegarLoop]: Abstraction has 1402 states and 1839 transitions. [2024-09-12 18:52:30,135 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 18:52:30,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1839 transitions. [2024-09-12 18:52:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:52:30,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:30,136 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 18:52:30,148 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-09-12 18:52:30,336 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 18:52:30,337 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:30,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash -887453594, now seen corresponding path program 1 times [2024-09-12 18:52:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:30,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977759808] [2024-09-12 18:52:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:30,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:52:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,410 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 18:52:30,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:30,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977759808] [2024-09-12 18:52:30,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977759808] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:30,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790728595] [2024-09-12 18:52:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:30,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:30,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:30,414 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 18:52:30,422 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 18:52:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:30,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:52:30,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:30,499 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 18:52:30,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:30,581 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 18:52:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790728595] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:30,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:30,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-12 18:52:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343215721] [2024-09-12 18:52:30,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:30,582 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:52:30,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:30,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:52:30,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:52:30,583 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 18:52:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:32,388 INFO L93 Difference]: Finished difference Result 1408 states and 1845 transitions. [2024-09-12 18:52:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:32,389 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 18:52:32,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:32,392 INFO L225 Difference]: With dead ends: 1408 [2024-09-12 18:52:32,392 INFO L226 Difference]: Without dead ends: 1405 [2024-09-12 18:52:32,393 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 18:52:32,393 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 64 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:32,393 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 213 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:32,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-09-12 18:52:33,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1403. [2024-09-12 18:52:33,130 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 18:52:33,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1836 transitions. [2024-09-12 18:52:33,136 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1836 transitions. Word has length 118 [2024-09-12 18:52:33,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:33,136 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1836 transitions. [2024-09-12 18:52:33,136 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 18:52:33,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1836 transitions. [2024-09-12 18:52:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:52:33,137 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:33,137 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 18:52:33,158 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 18:52:33,341 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 18:52:33,342 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:33,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash -798859824, now seen corresponding path program 1 times [2024-09-12 18:52:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:33,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10662251] [2024-09-12 18:52:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:33,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573045344] [2024-09-12 18:52:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:33,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:33,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:33,358 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 18:52:33,359 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 18:52:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:33,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:33,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:33,762 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 18:52:33,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:34,417 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 18:52:34,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:34,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10662251] [2024-09-12 18:52:34,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:34,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573045344] [2024-09-12 18:52:34,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573045344] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:34,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:34,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:52:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397388413] [2024-09-12 18:52:34,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:34,419 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:52:34,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:34,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:52:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:52:34,419 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 18:52:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:36,831 INFO L93 Difference]: Finished difference Result 1403 states and 1836 transitions. [2024-09-12 18:52:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:52:36,832 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 18:52:36,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:36,835 INFO L225 Difference]: With dead ends: 1403 [2024-09-12 18:52:36,836 INFO L226 Difference]: Without dead ends: 1400 [2024-09-12 18:52:36,836 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 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 18:52:36,837 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 81 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:36,837 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 151 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 18:52:36,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-09-12 18:52:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1400. [2024-09-12 18:52:37,636 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 18:52:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1802 transitions. [2024-09-12 18:52:37,640 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1802 transitions. Word has length 118 [2024-09-12 18:52:37,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:37,640 INFO L474 AbstractCegarLoop]: Abstraction has 1400 states and 1802 transitions. [2024-09-12 18:52:37,640 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 18:52:37,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1802 transitions. [2024-09-12 18:52:37,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:52:37,641 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:37,641 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 18:52:37,655 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 18:52:37,842 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 18:52:37,842 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:37,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:37,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1741257482, now seen corresponding path program 1 times [2024-09-12 18:52:37,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:37,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320823579] [2024-09-12 18:52:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:37,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:52:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:37,944 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 18:52:37,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:37,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320823579] [2024-09-12 18:52:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320823579] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:52:37,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:52:37,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:52:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771495890] [2024-09-12 18:52:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:37,945 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:52:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:37,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:52:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:52:37,946 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 18:52:39,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:39,743 INFO L93 Difference]: Finished difference Result 1402 states and 1802 transitions. [2024-09-12 18:52:39,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:52:39,743 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 18:52:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:39,746 INFO L225 Difference]: With dead ends: 1402 [2024-09-12 18:52:39,746 INFO L226 Difference]: Without dead ends: 1401 [2024-09-12 18:52:39,746 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 18:52:39,747 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 121 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:39,747 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 214 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:52:39,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-09-12 18:52:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1399. [2024-09-12 18:52:40,562 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 18:52:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1797 transitions. [2024-09-12 18:52:40,564 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1797 transitions. Word has length 119 [2024-09-12 18:52:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:40,564 INFO L474 AbstractCegarLoop]: Abstraction has 1399 states and 1797 transitions. [2024-09-12 18:52:40,565 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 18:52:40,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1797 transitions. [2024-09-12 18:52:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 18:52:40,565 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:40,566 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 18:52:40,566 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-09-12 18:52:40,566 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 18:52:40,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -104559812, now seen corresponding path program 1 times [2024-09-12 18:52:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230288856] [2024-09-12 18:52:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:40,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44884613] [2024-09-12 18:52:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:40,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:40,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:40,576 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 18:52:40,577 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 18:52:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:40,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:52:40,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:40,961 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 18:52:40,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:41,131 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 18:52:41,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230288856] [2024-09-12 18:52:41,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44884613] [2024-09-12 18:52:41,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44884613] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:41,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:41,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11 [2024-09-12 18:52:41,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980507393] [2024-09-12 18:52:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:52:41,133 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:52:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:52:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:41,133 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 18:52:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:43,657 INFO L93 Difference]: Finished difference Result 1405 states and 1802 transitions. [2024-09-12 18:52:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:52:43,658 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 18:52:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:43,661 INFO L225 Difference]: With dead ends: 1405 [2024-09-12 18:52:43,661 INFO L226 Difference]: Without dead ends: 1392 [2024-09-12 18:52:43,661 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 18:52:43,661 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 164 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:43,662 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 221 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 18:52:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-09-12 18:52:44,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1388. [2024-09-12 18:52:44,660 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 18:52:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1781 transitions. [2024-09-12 18:52:44,663 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1781 transitions. Word has length 122 [2024-09-12 18:52:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:44,663 INFO L474 AbstractCegarLoop]: Abstraction has 1388 states and 1781 transitions. [2024-09-12 18:52:44,663 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 18:52:44,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1781 transitions. [2024-09-12 18:52:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:52:44,664 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:44,665 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 18:52:44,677 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 18:52:44,868 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 18:52:44,869 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 18:52:44,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash -548908454, now seen corresponding path program 1 times [2024-09-12 18:52:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478801317] [2024-09-12 18:52:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:52:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:52:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:52:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:52:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:52:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:52:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:52:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:52:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:52:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:52:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:44,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:52:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-09-12 18:52:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,005 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 18:52:45,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:45,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478801317] [2024-09-12 18:52:45,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478801317] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:45,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386533335] [2024-09-12 18:52:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:45,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:45,007 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 18:52:45,012 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 18:52:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:45,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:52:45,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:45,118 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 18:52:45,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:45,212 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 18:52:45,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386533335] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:45,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:52:45,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-09-12 18:52:45,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907994566] [2024-09-12 18:52:45,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:45,213 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:45,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:45,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:45,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:52:45,214 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 18:52:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:46,460 INFO L93 Difference]: Finished difference Result 1398 states and 1789 transitions. [2024-09-12 18:52:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:52:46,460 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 18:52:46,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:46,463 INFO L225 Difference]: With dead ends: 1398 [2024-09-12 18:52:46,463 INFO L226 Difference]: Without dead ends: 1384 [2024-09-12 18:52:46,464 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 18:52:46,464 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 97 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:46,464 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 186 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:52:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-09-12 18:52:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1382. [2024-09-12 18:52:47,323 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 18:52:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1767 transitions. [2024-09-12 18:52:47,326 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1767 transitions. Word has length 123 [2024-09-12 18:52:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:47,326 INFO L474 AbstractCegarLoop]: Abstraction has 1382 states and 1767 transitions. [2024-09-12 18:52:47,326 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 18:52:47,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1767 transitions. [2024-09-12 18:52:47,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:52:47,327 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:47,327 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 18:52:47,339 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 18:52:47,531 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 18:52:47,531 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:47,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash 986291800, now seen corresponding path program 2 times [2024-09-12 18:52:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:47,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979673568] [2024-09-12 18:52:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:47,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:47,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277409560] [2024-09-12 18:52:47,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:52:47,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:47,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:47,548 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 18:52:47,552 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 18:52:47,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:52:47,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:52:47,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:52:47,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:52:48,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:49,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:49,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979673568] [2024-09-12 18:52:49,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:49,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277409560] [2024-09-12 18:52:49,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277409560] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:49,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:49,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:52:49,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412390089] [2024-09-12 18:52:49,084 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:49,084 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:52:49,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:49,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:52:49,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=143, Unknown=1, NotChecked=0, Total=182 [2024-09-12 18:52:49,085 INFO L87 Difference]: Start difference. First operand 1382 states and 1767 transitions. Second operand has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:52:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:50,774 INFO L93 Difference]: Finished difference Result 1541 states and 1973 transitions. [2024-09-12 18:52:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:52:50,775 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 124 [2024-09-12 18:52:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:50,778 INFO L225 Difference]: With dead ends: 1541 [2024-09-12 18:52:50,778 INFO L226 Difference]: Without dead ends: 1540 [2024-09-12 18:52:50,778 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=263, Unknown=1, NotChecked=0, Total=342 [2024-09-12 18:52:50,778 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 265 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:50,779 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 459 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:52:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-09-12 18:52:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1382. [2024-09-12 18:52:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1214 states have (on average 1.2380560131795717) internal successors, (1503), 1233 states have internal predecessors, (1503), 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 18:52:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1766 transitions. [2024-09-12 18:52:51,629 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1766 transitions. Word has length 124 [2024-09-12 18:52:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:51,629 INFO L474 AbstractCegarLoop]: Abstraction has 1382 states and 1766 transitions. [2024-09-12 18:52:51,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-09-12 18:52:51,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1766 transitions. [2024-09-12 18:52:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 18:52:51,630 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:51,630 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 18:52:51,642 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-09-12 18:52:51,831 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 18:52:51,831 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:51,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:51,831 INFO L85 PathProgramCache]: Analyzing trace with hash 875690787, now seen corresponding path program 1 times [2024-09-12 18:52:51,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:51,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155572745] [2024-09-12 18:52:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506536773] [2024-09-12 18:52:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:51,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:51,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:51,844 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 18:52:51,845 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 18:52:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:51,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:52:51,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:52,337 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 18:52:52,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:52,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155572745] [2024-09-12 18:52:52,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506536773] [2024-09-12 18:52:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506536773] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:52:52,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:52:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:52:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116992957] [2024-09-12 18:52:52,787 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:52,787 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:52:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:52:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:52:52,788 INFO L87 Difference]: Start difference. First operand 1382 states and 1766 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 18:52:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:52:54,344 INFO L93 Difference]: Finished difference Result 1444 states and 1842 transitions. [2024-09-12 18:52:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:52:54,345 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 18:52:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:52:54,348 INFO L225 Difference]: With dead ends: 1444 [2024-09-12 18:52:54,348 INFO L226 Difference]: Without dead ends: 1443 [2024-09-12 18:52:54,348 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 18:52:54,349 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 173 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:52:54,349 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 509 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:52:54,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-09-12 18:52:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1382. [2024-09-12 18:52:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1214 states have (on average 1.2372322899505765) internal successors, (1502), 1233 states have internal predecessors, (1502), 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 18:52:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1765 transitions. [2024-09-12 18:52:55,209 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1765 transitions. Word has length 127 [2024-09-12 18:52:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:52:55,209 INFO L474 AbstractCegarLoop]: Abstraction has 1382 states and 1765 transitions. [2024-09-12 18:52:55,209 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 18:52:55,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1765 transitions. [2024-09-12 18:52:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 18:52:55,210 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:52:55,210 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 18:52:55,221 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 18:52:55,410 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 18:52:55,410 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:52:55,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:52:55,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1376610702, now seen corresponding path program 1 times [2024-09-12 18:52:55,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:52:55,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011143459] [2024-09-12 18:52:55,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:52:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:52:55,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484116610] [2024-09-12 18:52:55,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:52:55,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:52:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:52:55,424 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 18:52:55,425 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 18:52:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:52:55,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:52:55,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:52:56,466 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 18:52:56,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:52:59,409 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 18:52:59,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:52:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011143459] [2024-09-12 18:52:59,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:52:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484116610] [2024-09-12 18:52:59,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484116610] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:52:59,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:52:59,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2024-09-12 18:52:59,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143847184] [2024-09-12 18:52:59,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:52:59,410 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-09-12 18:52:59,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:52:59,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-09-12 18:52:59,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:52:59,411 INFO L87 Difference]: Start difference. First operand 1382 states and 1765 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 18:53:10,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:10,899 INFO L93 Difference]: Finished difference Result 1444 states and 1845 transitions. [2024-09-12 18:53:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 18:53:10,900 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 18:53:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:10,903 INFO L225 Difference]: With dead ends: 1444 [2024-09-12 18:53:10,903 INFO L226 Difference]: Without dead ends: 1434 [2024-09-12 18:53:10,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=543, Invalid=2213, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 18:53:10,904 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 457 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 2933 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:10,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 518 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2933 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-09-12 18:53:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2024-09-12 18:53:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1372. [2024-09-12 18:53:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1207 states have (on average 1.2236951118475559) internal successors, (1477), 1224 states have internal predecessors, (1477), 131 states have call successors, (131), 17 states have call predecessors, (131), 16 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-09-12 18:53:12,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1738 transitions. [2024-09-12 18:53:12,002 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1738 transitions. Word has length 128 [2024-09-12 18:53:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:12,002 INFO L474 AbstractCegarLoop]: Abstraction has 1372 states and 1738 transitions. [2024-09-12 18:53:12,003 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 18:53:12,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:12,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1738 transitions. [2024-09-12 18:53:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 18:53:12,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:12,004 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 18:53:12,015 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-09-12 18:53:12,204 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 18:53:12,204 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 18:53:12,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash 305429551, now seen corresponding path program 2 times [2024-09-12 18:53:12,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:12,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201893540] [2024-09-12 18:53:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:12,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:12,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002137143] [2024-09-12 18:53:12,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:53:12,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:12,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:12,216 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 18:53:12,216 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 18:53:12,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:53:12,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:53:12,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-09-12 18:53:12,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 23 proven. 54 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-09-12 18:53:13,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:14,125 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 18:53:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201893540] [2024-09-12 18:53:14,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002137143] [2024-09-12 18:53:14,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002137143] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:14,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:14,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 28 [2024-09-12 18:53:14,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411743260] [2024-09-12 18:53:14,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:14,126 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 18:53:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 18:53:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-09-12 18:53:14,127 INFO L87 Difference]: Start difference. First operand 1372 states and 1738 transitions. Second operand has 28 states, 28 states have (on average 5.464285714285714) internal successors, (153), 25 states have internal predecessors, (153), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:53:22,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:22,179 INFO L93 Difference]: Finished difference Result 1584 states and 1995 transitions. [2024-09-12 18:53:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-12 18:53:22,179 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), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) Word has length 133 [2024-09-12 18:53:22,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:22,183 INFO L225 Difference]: With dead ends: 1584 [2024-09-12 18:53:22,183 INFO L226 Difference]: Without dead ends: 1582 [2024-09-12 18:53:22,183 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=341, Invalid=1915, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 18:53:22,184 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 413 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:22,184 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 481 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-09-12 18:53:22,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2024-09-12 18:53:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1478. [2024-09-12 18:53:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1300 states have (on average 1.2238461538461538) internal successors, (1591), 1317 states have internal predecessors, (1591), 140 states have call successors, (140), 21 states have call predecessors, (140), 20 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:53:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1870 transitions. [2024-09-12 18:53:23,417 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1870 transitions. Word has length 133 [2024-09-12 18:53:23,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:23,417 INFO L474 AbstractCegarLoop]: Abstraction has 1478 states and 1870 transitions. [2024-09-12 18:53:23,417 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), 7 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 8 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 18:53:23,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1870 transitions. [2024-09-12 18:53:23,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-09-12 18:53:23,418 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:23,418 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 18:53:23,426 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 18:53:23,622 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 18:53:23,623 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 18:53:23,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1251280543, now seen corresponding path program 3 times [2024-09-12 18:53:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:23,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572534938] [2024-09-12 18:53:23,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:23,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769968696] [2024-09-12 18:53:23,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:53:23,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:23,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:23,634 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 18:53:23,635 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 18:53:23,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 18:53:23,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:53:23,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:53:23,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:24,379 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 18:53:24,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:25,729 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 18:53:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:25,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572534938] [2024-09-12 18:53:25,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:25,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769968696] [2024-09-12 18:53:25,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769968696] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:25,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:53:25,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2024-09-12 18:53:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286220614] [2024-09-12 18:53:25,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:25,730 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 18:53:25,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 18:53:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:53:25,731 INFO L87 Difference]: Start difference. First operand 1478 states and 1870 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 18:53:32,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 18:53:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:33,984 INFO L93 Difference]: Finished difference Result 1632 states and 2074 transitions. [2024-09-12 18:53:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 18:53:33,984 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 18:53:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:33,988 INFO L225 Difference]: With dead ends: 1632 [2024-09-12 18:53:33,988 INFO L226 Difference]: Without dead ends: 1630 [2024-09-12 18:53:33,988 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:53:33,988 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 188 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:33,988 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 426 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-09-12 18:53:33,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-09-12 18:53:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1488. [2024-09-12 18:53:35,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1308 states have (on average 1.2217125382262997) internal successors, (1598), 1324 states have internal predecessors, (1598), 140 states have call successors, (140), 24 states have call predecessors, (140), 23 states have return successors, (139), 139 states have call predecessors, (139), 139 states have call successors, (139) [2024-09-12 18:53:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1877 transitions. [2024-09-12 18:53:35,278 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1877 transitions. Word has length 133 [2024-09-12 18:53:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:35,278 INFO L474 AbstractCegarLoop]: Abstraction has 1488 states and 1877 transitions. [2024-09-12 18:53:35,278 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 18:53:35,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:35,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1877 transitions. [2024-09-12 18:53:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 18:53:35,279 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:35,279 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 18:53:35,293 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2024-09-12 18:53:35,483 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 18:53:35,483 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:35,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1777829142, now seen corresponding path program 2 times [2024-09-12 18:53:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:35,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573840543] [2024-09-12 18:53:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:35,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112920321] [2024-09-12 18:53:35,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:53:35,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:35,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:35,496 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 18:53:35,496 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 18:53:35,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:53:35,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:53:35,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:53:35,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 3 proven. 71 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-09-12 18:53:35,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:37,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:37,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573840543] [2024-09-12 18:53:37,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:37,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112920321] [2024-09-12 18:53:37,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112920321] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:37,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:37,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:53:37,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733423998] [2024-09-12 18:53:37,551 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:37,551 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:53:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:37,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:53:37,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:53:37,552 INFO L87 Difference]: Start difference. First operand 1488 states and 1877 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:53:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:39,485 INFO L93 Difference]: Finished difference Result 1750 states and 2202 transitions. [2024-09-12 18:53:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:53:39,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 135 [2024-09-12 18:53:39,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:39,490 INFO L225 Difference]: With dead ends: 1750 [2024-09-12 18:53:39,491 INFO L226 Difference]: Without dead ends: 1748 [2024-09-12 18:53:39,491 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=89, Unknown=1, NotChecked=0, Total=132 [2024-09-12 18:53:39,491 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 254 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:39,491 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 327 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:53:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-09-12 18:53:40,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1570. [2024-09-12 18:53:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1381 states have (on average 1.2201303403330919) internal successors, (1685), 1397 states have internal predecessors, (1685), 149 states have call successors, (149), 24 states have call predecessors, (149), 23 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-09-12 18:53:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1982 transitions. [2024-09-12 18:53:40,878 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1982 transitions. Word has length 135 [2024-09-12 18:53:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:40,879 INFO L474 AbstractCegarLoop]: Abstraction has 1570 states and 1982 transitions. [2024-09-12 18:53:40,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-09-12 18:53:40,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1982 transitions. [2024-09-12 18:53:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-09-12 18:53:40,880 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:40,880 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 18:53:40,892 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 18:53:41,082 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 18:53:41,082 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:41,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 214672082, now seen corresponding path program 1 times [2024-09-12 18:53:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:41,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796195804] [2024-09-12 18:53:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:41,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:41,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701565644] [2024-09-12 18:53:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:41,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:41,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:41,093 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 18:53:41,094 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 18:53:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:41,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 18:53:41,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:41,604 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 18:53:41,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:42,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796195804] [2024-09-12 18:53:42,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:42,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701565644] [2024-09-12 18:53:42,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701565644] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:42,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:42,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 18:53:42,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009333545] [2024-09-12 18:53:42,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:42,099 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:53:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:42,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:53:42,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:53:42,099 INFO L87 Difference]: Start difference. First operand 1570 states and 1982 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 18:53:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:44,126 INFO L93 Difference]: Finished difference Result 1644 states and 2070 transitions. [2024-09-12 18:53:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:53:44,126 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 18:53:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:44,130 INFO L225 Difference]: With dead ends: 1644 [2024-09-12 18:53:44,130 INFO L226 Difference]: Without dead ends: 1643 [2024-09-12 18:53:44,130 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 18:53:44,131 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 126 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:44,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 548 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-09-12 18:53:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1570. [2024-09-12 18:53:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1381 states have (on average 1.2194062273714699) internal successors, (1684), 1397 states have internal predecessors, (1684), 149 states have call successors, (149), 24 states have call predecessors, (149), 23 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-09-12 18:53:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1981 transitions. [2024-09-12 18:53:45,530 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1981 transitions. Word has length 138 [2024-09-12 18:53:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:45,530 INFO L474 AbstractCegarLoop]: Abstraction has 1570 states and 1981 transitions. [2024-09-12 18:53:45,531 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 18:53:45,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:45,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1981 transitions. [2024-09-12 18:53:45,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 18:53:45,531 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:45,532 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 18:53:45,544 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 18:53:45,732 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 18:53:45,733 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:45,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:45,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1935099956, now seen corresponding path program 1 times [2024-09-12 18:53:45,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:45,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285198978] [2024-09-12 18:53:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:45,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:53:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1182298934] [2024-09-12 18:53:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:45,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:45,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:45,746 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 18:53:45,748 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 18:53:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:45,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:53:45,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:46,173 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 18:53:46,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:46,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285198978] [2024-09-12 18:53:46,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:53:46,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182298934] [2024-09-12 18:53:46,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182298934] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:46,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:53:46,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:53:46,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363223333] [2024-09-12 18:53:46,290 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:46,290 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:53:46,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:53:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:46,291 INFO L87 Difference]: Start difference. First operand 1570 states and 1981 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 18:53:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:48,788 INFO L93 Difference]: Finished difference Result 1639 states and 2052 transitions. [2024-09-12 18:53:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:53:48,789 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 18:53:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:48,792 INFO L225 Difference]: With dead ends: 1639 [2024-09-12 18:53:48,792 INFO L226 Difference]: Without dead ends: 1587 [2024-09-12 18:53:48,792 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:53:48,792 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 276 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:48,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 400 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:53:48,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-09-12 18:53:50,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1443. [2024-09-12 18:53:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1271 states have (on average 1.2069236821400473) internal successors, (1534), 1284 states have internal predecessors, (1534), 135 states have call successors, (135), 24 states have call predecessors, (135), 23 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2024-09-12 18:53:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1803 transitions. [2024-09-12 18:53:50,049 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1803 transitions. Word has length 139 [2024-09-12 18:53:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:50,049 INFO L474 AbstractCegarLoop]: Abstraction has 1443 states and 1803 transitions. [2024-09-12 18:53:50,049 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 18:53:50,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1803 transitions. [2024-09-12 18:53:50,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 18:53:50,051 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:50,051 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 18:53:50,063 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:50,251 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 18:53:50,251 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:50,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1865279560, now seen corresponding path program 1 times [2024-09-12 18:53:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201626063] [2024-09-12 18:53:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:53:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:53:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:53:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:53:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:53:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:53:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:53:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:53:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:53:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,369 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 18:53:50,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201626063] [2024-09-12 18:53:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201626063] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903711580] [2024-09-12 18:53:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:50,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:50,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:50,373 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 18:53:50,374 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 18:53:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:50,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:53:50,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:50,632 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 18:53:50,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:50,767 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 18:53:50,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903711580] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:50,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:53:50,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:53:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550495748] [2024-09-12 18:53:50,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:50,768 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:53:50,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:53:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:50,769 INFO L87 Difference]: Start difference. First operand 1443 states and 1803 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 18:53:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:52,994 INFO L93 Difference]: Finished difference Result 1900 states and 2363 transitions. [2024-09-12 18:53:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:53:52,994 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 18:53:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:52,999 INFO L225 Difference]: With dead ends: 1900 [2024-09-12 18:53:52,999 INFO L226 Difference]: Without dead ends: 1898 [2024-09-12 18:53:52,999 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 18:53:52,999 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 229 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:53,000 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 458 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:53:53,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2024-09-12 18:53:54,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1676. [2024-09-12 18:53:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1483 states have (on average 1.2043155765340525) internal successors, (1786), 1496 states have internal predecessors, (1786), 156 states have call successors, (156), 24 states have call predecessors, (156), 23 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-09-12 18:53:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2097 transitions. [2024-09-12 18:53:54,491 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2097 transitions. Word has length 151 [2024-09-12 18:53:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:54,492 INFO L474 AbstractCegarLoop]: Abstraction has 1676 states and 2097 transitions. [2024-09-12 18:53:54,492 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 18:53:54,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2097 transitions. [2024-09-12 18:53:54,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-09-12 18:53:54,493 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:54,493 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 18:53:54,506 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2024-09-12 18:53:54,693 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 18:53:54,694 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:53:54,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:54,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1276642534, now seen corresponding path program 1 times [2024-09-12 18:53:54,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:53:54,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011235502] [2024-09-12 18:53:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:53:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:53:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,776 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:53:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,777 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:53:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 18:53:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 18:53:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,779 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-09-12 18:53:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-09-12 18:53:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-09-12 18:53:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-09-12 18:53:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 18:53:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 18:53:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-09-12 18:53:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:53:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-09-12 18:53:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,808 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 18:53:54,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:53:54,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011235502] [2024-09-12 18:53:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011235502] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:53:54,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745501464] [2024-09-12 18:53:54,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:53:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:53:54,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:53:54,810 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 18:53:54,810 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 18:53:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:53:54,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:53:54,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:53:55,060 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 18:53:55,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:53:55,197 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 18:53:55,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745501464] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:53:55,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:53:55,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-09-12 18:53:55,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087810535] [2024-09-12 18:53:55,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:53:55,197 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:53:55,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:53:55,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:53:55,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:53:55,198 INFO L87 Difference]: Start difference. First operand 1676 states and 2097 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 18:53:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:53:57,835 INFO L93 Difference]: Finished difference Result 2308 states and 2897 transitions. [2024-09-12 18:53:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:53:57,836 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 18:53:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:53:57,840 INFO L225 Difference]: With dead ends: 2308 [2024-09-12 18:53:57,840 INFO L226 Difference]: Without dead ends: 2306 [2024-09-12 18:53:57,841 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 18:53:57,841 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 272 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:53:57,841 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 438 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:53:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2024-09-12 18:53:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2139. [2024-09-12 18:53:59,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 1907 states have (on average 1.2144729942317776) internal successors, (2316), 1920 states have internal predecessors, (2316), 195 states have call successors, (195), 24 states have call predecessors, (195), 23 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-09-12 18:53:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2705 transitions. [2024-09-12 18:53:59,818 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2705 transitions. Word has length 153 [2024-09-12 18:53:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:53:59,818 INFO L474 AbstractCegarLoop]: Abstraction has 2139 states and 2705 transitions. [2024-09-12 18:53:59,818 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 18:53:59,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:53:59,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2705 transitions. [2024-09-12 18:53:59,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:53:59,819 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:53:59,819 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 18:53:59,831 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-09-12 18:54:00,019 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 18:54:00,020 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:00,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1570071838, now seen corresponding path program 3 times [2024-09-12 18:54:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619297801] [2024-09-12 18:54:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:00,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49059241] [2024-09-12 18:54:00,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:54:00,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:00,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:00,033 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 18:54:00,034 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 18:54:00,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:54:00,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:00,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:54:00,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:00,503 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 18:54:00,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:00,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:00,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619297801] [2024-09-12 18:54:00,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:00,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49059241] [2024-09-12 18:54:00,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49059241] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:00,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:00,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:54:00,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088644208] [2024-09-12 18:54:00,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:00,865 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:54:00,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:00,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:54:00,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:00,865 INFO L87 Difference]: Start difference. First operand 2139 states and 2705 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 18:54:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:03,316 INFO L93 Difference]: Finished difference Result 2158 states and 2723 transitions. [2024-09-12 18:54:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:54:03,317 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 18:54:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:03,321 INFO L225 Difference]: With dead ends: 2158 [2024-09-12 18:54:03,322 INFO L226 Difference]: Without dead ends: 2140 [2024-09-12 18:54:03,322 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 18:54:03,322 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 87 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:03,322 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 245 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-09-12 18:54:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2128. [2024-09-12 18:54:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 1898 states have (on average 1.214436248682824) internal successors, (2305), 1911 states have internal predecessors, (2305), 193 states have call successors, (193), 24 states have call predecessors, (193), 23 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-09-12 18:54:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2690 transitions. [2024-09-12 18:54:05,311 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2690 transitions. Word has length 156 [2024-09-12 18:54:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:05,311 INFO L474 AbstractCegarLoop]: Abstraction has 2128 states and 2690 transitions. [2024-09-12 18:54:05,311 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 18:54:05,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:05,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2690 transitions. [2024-09-12 18:54:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:54:05,312 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:05,312 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 18:54:05,324 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-09-12 18:54:05,513 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 18:54:05,513 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:05,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1489647262, now seen corresponding path program 4 times [2024-09-12 18:54:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:05,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854161085] [2024-09-12 18:54:05,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:05,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:05,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356808292] [2024-09-12 18:54:05,524 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:54:05,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:05,525 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 18:54:05,526 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 18:54:05,583 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:54:05,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:05,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 18:54:05,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 36 proven. 93 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-09-12 18:54:06,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:07,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:07,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854161085] [2024-09-12 18:54:07,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:07,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356808292] [2024-09-12 18:54:07,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356808292] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:07,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:07,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:54:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005628715] [2024-09-12 18:54:07,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:07,262 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:54:07,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:07,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:54:07,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:54:07,262 INFO L87 Difference]: Start difference. First operand 2128 states and 2690 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:54:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:11,393 INFO L93 Difference]: Finished difference Result 2206 states and 2778 transitions. [2024-09-12 18:54:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:54:11,394 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 156 [2024-09-12 18:54:11,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:11,399 INFO L225 Difference]: With dead ends: 2206 [2024-09-12 18:54:11,402 INFO L226 Difference]: Without dead ends: 2188 [2024-09-12 18:54:11,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:54:11,403 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 94 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:11,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 441 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1474 Invalid, 1 Unknown, 0 Unchecked, 1.8s Time] [2024-09-12 18:54:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2024-09-12 18:54:13,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2169. [2024-09-12 18:54:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 1934 states have (on average 1.2125129265770425) internal successors, (2345), 1947 states have internal predecessors, (2345), 198 states have call successors, (198), 24 states have call predecessors, (198), 23 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-09-12 18:54:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 2740 transitions. [2024-09-12 18:54:13,689 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 2740 transitions. Word has length 156 [2024-09-12 18:54:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:13,689 INFO L474 AbstractCegarLoop]: Abstraction has 2169 states and 2740 transitions. [2024-09-12 18:54:13,690 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:54:13,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:13,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 2740 transitions. [2024-09-12 18:54:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:54:13,691 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:13,691 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 18:54:13,703 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 18:54:13,894 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 18:54:13,895 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:13,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:13,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2082711824, now seen corresponding path program 5 times [2024-09-12 18:54:13,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:13,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692160500] [2024-09-12 18:54:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:13,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:13,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101177317] [2024-09-12 18:54:13,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:54:13,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:13,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:13,909 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 18:54:13,910 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 18:54:14,111 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 18:54:14,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:14,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:54:14,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:14,473 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 18:54:14,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:14,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:14,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692160500] [2024-09-12 18:54:14,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:14,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101177317] [2024-09-12 18:54:14,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101177317] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:14,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:14,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:54:14,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872555896] [2024-09-12 18:54:14,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:14,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:54:14,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:54:14,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:14,638 INFO L87 Difference]: Start difference. First operand 2169 states and 2740 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 18:54:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:16,965 INFO L93 Difference]: Finished difference Result 2230 states and 2810 transitions. [2024-09-12 18:54:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:54:16,966 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 18:54:16,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:16,970 INFO L225 Difference]: With dead ends: 2230 [2024-09-12 18:54:16,970 INFO L226 Difference]: Without dead ends: 2218 [2024-09-12 18:54:16,971 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:54:16,971 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 132 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:16,971 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 181 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:54:16,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2024-09-12 18:54:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2204. [2024-09-12 18:54:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 1965 states have (on average 1.2111959287531806) internal successors, (2380), 1978 states have internal predecessors, (2380), 202 states have call successors, (202), 24 states have call predecessors, (202), 23 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-09-12 18:54:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 2783 transitions. [2024-09-12 18:54:19,034 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 2783 transitions. Word has length 156 [2024-09-12 18:54:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:19,034 INFO L474 AbstractCegarLoop]: Abstraction has 2204 states and 2783 transitions. [2024-09-12 18:54:19,035 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 18:54:19,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 2783 transitions. [2024-09-12 18:54:19,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:54:19,036 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:19,036 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 18:54:19,041 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 18:54:19,236 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 18:54:19,236 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:19,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -522266654, now seen corresponding path program 6 times [2024-09-12 18:54:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:19,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5272883] [2024-09-12 18:54:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:19,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060218421] [2024-09-12 18:54:19,246 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:54:19,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:19,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:19,248 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 18:54:19,250 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 18:54:19,339 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-09-12 18:54:19,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:19,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:54:19,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:19,579 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 18:54:19,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:20,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:20,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5272883] [2024-09-12 18:54:20,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:20,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060218421] [2024-09-12 18:54:20,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060218421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:20,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:20,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 18:54:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491280961] [2024-09-12 18:54:20,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:20,037 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:54:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:20,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:54:20,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:54:20,038 INFO L87 Difference]: Start difference. First operand 2204 states and 2783 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 18:54:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:22,597 INFO L93 Difference]: Finished difference Result 2292 states and 2882 transitions. [2024-09-12 18:54:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:54:22,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 18:54:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:22,601 INFO L225 Difference]: With dead ends: 2292 [2024-09-12 18:54:22,601 INFO L226 Difference]: Without dead ends: 2258 [2024-09-12 18:54:22,602 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:54:22,602 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 124 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:22,602 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 289 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:22,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-09-12 18:54:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2234. [2024-09-12 18:54:24,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1992 states have (on average 1.2003012048192772) internal successors, (2391), 2005 states have internal predecessors, (2391), 205 states have call successors, (205), 24 states have call predecessors, (205), 23 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:54:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2800 transitions. [2024-09-12 18:54:24,681 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2800 transitions. Word has length 156 [2024-09-12 18:54:24,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:24,682 INFO L474 AbstractCegarLoop]: Abstraction has 2234 states and 2800 transitions. [2024-09-12 18:54:24,682 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 6 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 18:54:24,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2800 transitions. [2024-09-12 18:54:24,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-09-12 18:54:24,683 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:24,683 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 18:54:24,694 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-09-12 18:54:24,883 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 18:54:24,884 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:24,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1115331216, now seen corresponding path program 7 times [2024-09-12 18:54:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:24,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307838107] [2024-09-12 18:54:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:24,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365587480] [2024-09-12 18:54:24,894 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-12 18:54:24,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:24,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:24,897 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 18:54:24,901 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 18:54:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:54:24,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 18:54:24,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:25,358 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 18:54:25,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:25,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307838107] [2024-09-12 18:54:25,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365587480] [2024-09-12 18:54:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365587480] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:25,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:25,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:54:25,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468666304] [2024-09-12 18:54:25,723 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:25,723 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:54:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:54:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:25,724 INFO L87 Difference]: Start difference. First operand 2234 states and 2800 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 18:54:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:28,238 INFO L93 Difference]: Finished difference Result 2255 states and 2818 transitions. [2024-09-12 18:54:28,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:54:28,239 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 18:54:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:28,242 INFO L225 Difference]: With dead ends: 2255 [2024-09-12 18:54:28,243 INFO L226 Difference]: Without dead ends: 2237 [2024-09-12 18:54:28,243 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:54:28,243 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 64 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:28,243 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 345 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:54:28,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2024-09-12 18:54:30,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2234. [2024-09-12 18:54:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1992 states have (on average 1.1992971887550201) internal successors, (2389), 2005 states have internal predecessors, (2389), 205 states have call successors, (205), 24 states have call predecessors, (205), 23 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:54:30,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2798 transitions. [2024-09-12 18:54:30,344 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2798 transitions. Word has length 156 [2024-09-12 18:54:30,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:30,344 INFO L474 AbstractCegarLoop]: Abstraction has 2234 states and 2798 transitions. [2024-09-12 18:54:30,345 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 18:54:30,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2798 transitions. [2024-09-12 18:54:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:54:30,346 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:30,346 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 18:54:30,358 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2024-09-12 18:54:30,549 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 18:54:30,550 INFO L399 AbstractCegarLoop]: === Iteration 74 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:30,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:30,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1305513372, now seen corresponding path program 3 times [2024-09-12 18:54:30,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:30,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166395464] [2024-09-12 18:54:30,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:30,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586893424] [2024-09-12 18:54:30,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:54:30,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:30,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:30,565 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 18:54:30,566 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 18:54:30,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:54:30,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:30,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:54:30,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:32,050 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 18:54:32,051 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:32,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:32,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166395464] [2024-09-12 18:54:32,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:32,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586893424] [2024-09-12 18:54:32,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586893424] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:32,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:32,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 18:54:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249573097] [2024-09-12 18:54:32,590 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:32,590 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:54:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:54:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:54:32,590 INFO L87 Difference]: Start difference. First operand 2234 states and 2798 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 18:54:35,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:54:39,653 WARN L539 Checker$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 18:54:44,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:54:48,507 WARN L539 Checker$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 18:54:50,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:50,490 INFO L93 Difference]: Finished difference Result 2238 states and 2800 transitions. [2024-09-12 18:54:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:54:50,491 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 18:54:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:50,495 INFO L225 Difference]: With dead ends: 2238 [2024-09-12 18:54:50,495 INFO L226 Difference]: Without dead ends: 2237 [2024-09-12 18:54:50,495 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:54:50,495 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 59 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:50,495 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 427 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1212 Invalid, 5 Unknown, 0 Unchecked, 15.7s Time] [2024-09-12 18:54:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2024-09-12 18:54:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2234. [2024-09-12 18:54:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1992 states have (on average 1.1987951807228916) internal successors, (2388), 2005 states have internal predecessors, (2388), 205 states have call successors, (205), 24 states have call predecessors, (205), 23 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:54:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2797 transitions. [2024-09-12 18:54:52,675 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2797 transitions. Word has length 158 [2024-09-12 18:54:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:54:52,675 INFO L474 AbstractCegarLoop]: Abstraction has 2234 states and 2797 transitions. [2024-09-12 18:54:52,675 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 18:54:52,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2797 transitions. [2024-09-12 18:54:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:54:52,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:54:52,676 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 18:54:52,690 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 18:54:52,877 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 18:54:52,877 INFO L399 AbstractCegarLoop]: === Iteration 75 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:54:52,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:54:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1326907164, now seen corresponding path program 4 times [2024-09-12 18:54:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:54:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113440475] [2024-09-12 18:54:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:54:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:54:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:54:52,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970427984] [2024-09-12 18:54:52,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:54:52,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:54:52,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:54:52,894 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 18:54:52,896 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 18:54:52,953 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:54:52,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:54:52,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:54:52,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:54:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 21 proven. 96 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:54:54,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:54:54,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:54:54,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113440475] [2024-09-12 18:54:54,538 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:54:54,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970427984] [2024-09-12 18:54:54,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970427984] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:54:54,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:54:54,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:54:54,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050406366] [2024-09-12 18:54:54,539 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:54:54,539 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:54:54,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:54:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:54:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:54:54,540 INFO L87 Difference]: Start difference. First operand 2234 states and 2797 transitions. Second operand has 15 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:54:56,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:54:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:54:59,820 INFO L93 Difference]: Finished difference Result 2247 states and 2809 transitions. [2024-09-12 18:54:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:54:59,820 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 158 [2024-09-12 18:54:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:54:59,824 INFO L225 Difference]: With dead ends: 2247 [2024-09-12 18:54:59,824 INFO L226 Difference]: Without dead ends: 2246 [2024-09-12 18:54:59,824 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:54:59,824 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 50 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:54:59,825 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 536 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-09-12 18:54:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-09-12 18:55:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2234. [2024-09-12 18:55:01,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1992 states have (on average 1.198293172690763) internal successors, (2387), 2005 states have internal predecessors, (2387), 205 states have call successors, (205), 24 states have call predecessors, (205), 23 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:55:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2796 transitions. [2024-09-12 18:55:01,968 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2796 transitions. Word has length 158 [2024-09-12 18:55:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:01,969 INFO L474 AbstractCegarLoop]: Abstraction has 2234 states and 2796 transitions. [2024-09-12 18:55:01,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:55:01,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2796 transitions. [2024-09-12 18:55:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:55:01,970 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:01,970 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 18:55:01,983 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2024-09-12 18:55:02,174 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-09-12 18:55:02,175 INFO L399 AbstractCegarLoop]: === Iteration 76 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:55:02,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -31300878, now seen corresponding path program 5 times [2024-09-12 18:55:02,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:02,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797714765] [2024-09-12 18:55:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:02,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457950346] [2024-09-12 18:55:02,184 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:55:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:02,187 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:02,189 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-09-12 18:55:02,389 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-09-12 18:55:02,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:55:02,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:55:02,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:02,800 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 18:55:02,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797714765] [2024-09-12 18:55:03,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:03,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457950346] [2024-09-12 18:55:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457950346] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:03,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:55:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290925325] [2024-09-12 18:55:03,028 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:03,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:55:03,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:03,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:55:03,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:55:03,028 INFO L87 Difference]: Start difference. First operand 2234 states and 2796 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 18:55:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:55:05,436 INFO L93 Difference]: Finished difference Result 2247 states and 2810 transitions. [2024-09-12 18:55:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:55:05,436 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 18:55:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:55:05,440 INFO L225 Difference]: With dead ends: 2247 [2024-09-12 18:55:05,440 INFO L226 Difference]: Without dead ends: 2246 [2024-09-12 18:55:05,440 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:55:05,441 INFO L434 NwaCegarLoop]: 96 mSDtfsCounter, 49 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:55:05,441 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 312 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:55:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-09-12 18:55:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2234. [2024-09-12 18:55:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2234 states, 1992 states have (on average 1.1977911646586346) internal successors, (2386), 2005 states have internal predecessors, (2386), 205 states have call successors, (205), 24 states have call predecessors, (205), 23 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2024-09-12 18:55:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2234 states to 2234 states and 2795 transitions. [2024-09-12 18:55:07,556 INFO L78 Accepts]: Start accepts. Automaton has 2234 states and 2795 transitions. Word has length 158 [2024-09-12 18:55:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:55:07,557 INFO L474 AbstractCegarLoop]: Abstraction has 2234 states and 2795 transitions. [2024-09-12 18:55:07,557 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 18:55:07,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2234 states and 2795 transitions. [2024-09-12 18:55:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:55:07,557 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:55:07,558 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 18:55:07,565 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-09-12 18:55:07,761 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-09-12 18:55:07,762 INFO L399 AbstractCegarLoop]: === Iteration 77 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:55:07,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:55:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1908527474, now seen corresponding path program 6 times [2024-09-12 18:55:07,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:55:07,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96128115] [2024-09-12 18:55:07,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:55:07,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:55:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:55:07,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429361831] [2024-09-12 18:55:07,777 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:55:07,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:55:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:55:07,779 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:55:07,783 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-09-12 18:55:08,082 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-09-12 18:55:08,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:55:08,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:55:08,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:55:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 21 proven. 96 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:55:13,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:55:14,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:55:14,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96128115] [2024-09-12 18:55:14,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:55:14,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429361831] [2024-09-12 18:55:14,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429361831] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:55:14,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:55:14,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 18:55:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096609299] [2024-09-12 18:55:14,031 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:55:14,031 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:55:14,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:55:14,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:55:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=243, Unknown=1, NotChecked=0, Total=306 [2024-09-12 18:55:14,032 INFO L87 Difference]: Start difference. First operand 2234 states and 2795 transitions. Second operand has 15 states, 14 states have (on average 7.071428571428571) internal successors, (99), 15 states have internal predecessors, (99), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:55:18,663 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 18:55:22,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:55:31,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]