./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.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 9cf0abd1bd1b4ed3cb492af2ceaa5e063719310ace8aba62ab225fe204180938 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:38:57,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:38:57,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:38:57,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:38:57,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:38:57,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:38:57,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:38:57,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:38:57,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:38:57,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:38:57,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:38:57,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:38:57,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:38:57,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:38:57,654 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:38:57,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:38:57,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:38:57,655 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:38:57,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:38:57,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:38:57,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:38:57,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:38:57,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:38:57,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:38:57,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:38:57,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:38:57,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:38:57,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:38:57,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:38:57,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:38:57,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:38:57,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:38:57,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:38:57,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:38:57,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:38:57,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:38:57,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:38:57,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:38:57,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:38:57,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:38:57,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:38:57,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:38:57,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cf0abd1bd1b4ed3cb492af2ceaa5e063719310ace8aba62ab225fe204180938 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:38:58,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:38:58,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:38:58,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:38:58,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:38:58,030 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:38:58,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c [2024-09-12 18:38:59,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:38:59,757 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:38:59,757 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c [2024-09-12 18:38:59,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0bff8424d/2847030919bf49d9bf87f905c9682492/FLAGb7bb851d7 [2024-09-12 18:38:59,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0bff8424d/2847030919bf49d9bf87f905c9682492 [2024-09-12 18:38:59,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:38:59,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:38:59,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:38:59,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:38:59,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:38:59,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:59" (1/1) ... [2024-09-12 18:38:59,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bbecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:38:59, skipping insertion in model container [2024-09-12 18:38:59,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:38:59" (1/1) ... [2024-09-12 18:38:59,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:38:59,957 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c[576,589] [2024-09-12 18:38:59,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:38:59,991 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:39:00,000 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound50.c[576,589] [2024-09-12 18:39:00,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:39:00,031 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:39:00,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00 WrapperNode [2024-09-12 18:39:00,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:39:00,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:39:00,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:39:00,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:39:00,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,055 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:39:00,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:39:00,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:39:00,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:39:00,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:39:00,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,090 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 18:39:00,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:39:00,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:39:00,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:39:00,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:39:00,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (1/1) ... [2024-09-12 18:39:00,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:39:00,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:00,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:39:00,149 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:39:00,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:39:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:39:00,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:39:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:39:00,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:39:00,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:39:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:39:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:39:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:39:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:39:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:39:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:39:00,264 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:39:00,266 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:39:00,662 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 18:39:00,663 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:39:00,687 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:39:00,687 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 18:39:00,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:39:00 BoogieIcfgContainer [2024-09-12 18:39:00,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:39:00,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:39:00,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:39:00,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:39:00,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:38:59" (1/3) ... [2024-09-12 18:39:00,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c47c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:39:00, skipping insertion in model container [2024-09-12 18:39:00,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:39:00" (2/3) ... [2024-09-12 18:39:00,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c47c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:39:00, skipping insertion in model container [2024-09-12 18:39:00,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:39:00" (3/3) ... [2024-09-12 18:39:00,696 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound50.c [2024-09-12 18:39:00,712 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:39:00,712 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2024-09-12 18:39:00,775 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:39:00,782 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;@1fd00ed9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:39:00,782 INFO L337 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-09-12 18:39:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 18:39:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:39:00,794 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:00,794 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:00,795 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:00,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1334578321, now seen corresponding path program 1 times [2024-09-12 18:39:00,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:00,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601179614] [2024-09-12 18:39:00,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:00,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:00,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:00,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:00,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:00,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601179614] [2024-09-12 18:39:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601179614] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:00,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:00,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:00,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264726134] [2024-09-12 18:39:00,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:00,971 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:00,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:00,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:00,993 INFO L87 Difference]: Start difference. First operand has 102 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 87 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:01,130 INFO L93 Difference]: Finished difference Result 201 states and 234 transitions. [2024-09-12 18:39:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:01,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2024-09-12 18:39:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:01,141 INFO L225 Difference]: With dead ends: 201 [2024-09-12 18:39:01,142 INFO L226 Difference]: Without dead ends: 103 [2024-09-12 18:39:01,147 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:01,151 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:01,151 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 176 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:01,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-09-12 18:39:01,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 98. [2024-09-12 18:39:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 50 states have (on average 1.78) internal successors, (89), 85 states have internal predecessors, (89), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:39:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-09-12 18:39:01,203 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 13 [2024-09-12 18:39:01,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:01,205 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-09-12 18:39:01,205 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:01,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,206 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-09-12 18:39:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-12 18:39:01,207 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:01,207 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:01,208 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:39:01,208 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:01,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1277320019, now seen corresponding path program 1 times [2024-09-12 18:39:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204634981] [2024-09-12 18:39:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:01,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:01,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204634981] [2024-09-12 18:39:01,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204634981] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:01,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:01,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:01,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834747547] [2024-09-12 18:39:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:01,397 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:01,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:01,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:01,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:01,400 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:39:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:01,554 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2024-09-12 18:39:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:01,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-09-12 18:39:01,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:01,557 INFO L225 Difference]: With dead ends: 119 [2024-09-12 18:39:01,559 INFO L226 Difference]: Without dead ends: 102 [2024-09-12 18:39:01,559 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:01,561 INFO L434 NwaCegarLoop]: 93 mSDtfsCounter, 19 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:01,562 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 331 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-09-12 18:39:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-09-12 18:39:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 89 states have internal predecessors, (93), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:39:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2024-09-12 18:39:01,584 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 13 [2024-09-12 18:39:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:01,585 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2024-09-12 18:39:01,585 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:39:01,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,586 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2024-09-12 18:39:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:39:01,586 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:01,587 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:01,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:39:01,588 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:01,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash 769610315, now seen corresponding path program 1 times [2024-09-12 18:39:01,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:01,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069499592] [2024-09-12 18:39:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:01,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444799768] [2024-09-12 18:39:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:01,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:01,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:01,616 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:39:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:01,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:39:01,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:01,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:01,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069499592] [2024-09-12 18:39:01,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444799768] [2024-09-12 18:39:01,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444799768] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:01,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:01,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:01,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264033219] [2024-09-12 18:39:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:01,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:01,711 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:01,866 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2024-09-12 18:39:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-09-12 18:39:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:01,869 INFO L225 Difference]: With dead ends: 126 [2024-09-12 18:39:01,871 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 18:39:01,872 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:01,873 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 19 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:01,873 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 187 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 18:39:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2024-09-12 18:39:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.6964285714285714) internal successors, (95), 91 states have internal predecessors, (95), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:39:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 113 transitions. [2024-09-12 18:39:01,899 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 113 transitions. Word has length 16 [2024-09-12 18:39:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:01,900 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 113 transitions. [2024-09-12 18:39:01,900 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:01,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 113 transitions. [2024-09-12 18:39:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:39:01,903 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:01,903 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:01,920 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:39:02,104 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,104 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:02,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,105 INFO L85 PathProgramCache]: Analyzing trace with hash 380213190, now seen corresponding path program 1 times [2024-09-12 18:39:02,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957335887] [2024-09-12 18:39:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1781541861] [2024-09-12 18:39:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:02,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:02,137 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:39:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:39:02,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:02,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:02,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957335887] [2024-09-12 18:39:02,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:02,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781541861] [2024-09-12 18:39:02,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781541861] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:02,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:02,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643398393] [2024-09-12 18:39:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:02,263 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:02,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:02,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:02,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:02,266 INFO L87 Difference]: Start difference. First operand 104 states and 113 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:02,444 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2024-09-12 18:39:02,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:02,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-09-12 18:39:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:02,446 INFO L225 Difference]: With dead ends: 130 [2024-09-12 18:39:02,446 INFO L226 Difference]: Without dead ends: 128 [2024-09-12 18:39:02,446 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:02,447 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 20 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:02,448 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 363 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-09-12 18:39:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 109. [2024-09-12 18:39:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 59 states have (on average 1.6610169491525424) internal successors, (98), 95 states have internal predecessors, (98), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:39:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2024-09-12 18:39:02,468 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 21 [2024-09-12 18:39:02,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:02,472 INFO L474 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2024-09-12 18:39:02,472 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-09-12 18:39:02,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2024-09-12 18:39:02,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 18:39:02,473 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:02,473 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:02,492 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 18:39:02,674 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,675 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:02,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,676 INFO L85 PathProgramCache]: Analyzing trace with hash 312813782, now seen corresponding path program 1 times [2024-09-12 18:39:02,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:02,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330609382] [2024-09-12 18:39:02,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:02,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021192625] [2024-09-12 18:39:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:02,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:02,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:02,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:02,693 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:39:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:02,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:39:02,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:02,761 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:02,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:02,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330609382] [2024-09-12 18:39:02,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:02,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021192625] [2024-09-12 18:39:02,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021192625] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:02,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:02,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:39:02,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746033998] [2024-09-12 18:39:02,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:02,763 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:39:02,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:39:02,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:02,764 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:39:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:02,890 INFO L93 Difference]: Finished difference Result 171 states and 196 transitions. [2024-09-12 18:39:02,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:39:02,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-09-12 18:39:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:02,891 INFO L225 Difference]: With dead ends: 171 [2024-09-12 18:39:02,892 INFO L226 Difference]: Without dead ends: 165 [2024-09-12 18:39:02,892 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:39:02,893 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:02,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 160 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:02,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-09-12 18:39:02,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 142. [2024-09-12 18:39:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 122 states have internal predecessors, (147), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 177 transitions. [2024-09-12 18:39:02,908 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 177 transitions. Word has length 23 [2024-09-12 18:39:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:02,909 INFO L474 AbstractCegarLoop]: Abstraction has 142 states and 177 transitions. [2024-09-12 18:39:02,909 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:39:02,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 177 transitions. [2024-09-12 18:39:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 18:39:02,910 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:02,910 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:02,927 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:39:03,114 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:03,115 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:03,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash -33664040, now seen corresponding path program 1 times [2024-09-12 18:39:03,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:03,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887929329] [2024-09-12 18:39:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:03,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636785737] [2024-09-12 18:39:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:03,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:03,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:03,132 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:39:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:03,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:39:03,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:03,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:03,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887929329] [2024-09-12 18:39:03,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:03,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636785737] [2024-09-12 18:39:03,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636785737] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:03,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:03,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:03,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402930197] [2024-09-12 18:39:03,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:03,265 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:03,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:03,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:03,266 INFO L87 Difference]: Start difference. First operand 142 states and 177 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:39:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:03,474 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2024-09-12 18:39:03,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:03,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-09-12 18:39:03,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:03,476 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:39:03,476 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:39:03,476 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:03,477 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 185 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:03,478 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 169 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:39:03,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2024-09-12 18:39:03,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 88 states have (on average 1.6590909090909092) internal successors, (146), 123 states have internal predecessors, (146), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2024-09-12 18:39:03,508 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 25 [2024-09-12 18:39:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:03,508 INFO L474 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2024-09-12 18:39:03,508 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:39:03,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2024-09-12 18:39:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 18:39:03,509 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:03,509 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:03,527 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:03,710 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:03,710 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:03,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1043585168, now seen corresponding path program 1 times [2024-09-12 18:39:03,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:03,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632384176] [2024-09-12 18:39:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:03,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749029277] [2024-09-12 18:39:03,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:03,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:03,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:03,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:03,735 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:39:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:03,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:39:03,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:03,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632384176] [2024-09-12 18:39:03,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:03,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749029277] [2024-09-12 18:39:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749029277] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852738793] [2024-09-12 18:39:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:03,827 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:03,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:03,828 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:39:04,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:04,087 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2024-09-12 18:39:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-09-12 18:39:04,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:04,089 INFO L225 Difference]: With dead ends: 164 [2024-09-12 18:39:04,089 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 18:39:04,090 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:04,090 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 181 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:04,090 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 172 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 18:39:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 144. [2024-09-12 18:39:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 124 states have internal predecessors, (145), 16 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 175 transitions. [2024-09-12 18:39:04,119 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 175 transitions. Word has length 26 [2024-09-12 18:39:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:04,119 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 175 transitions. [2024-09-12 18:39:04,119 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 18:39:04,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 175 transitions. [2024-09-12 18:39:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:39:04,120 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:04,121 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:04,137 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 18:39:04,321 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-12 18:39:04,322 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:04,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash 668877472, now seen corresponding path program 1 times [2024-09-12 18:39:04,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:04,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321002769] [2024-09-12 18:39:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:04,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:04,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088814746] [2024-09-12 18:39:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:04,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:04,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:04,358 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:39:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:04,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:39:04,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:39:04,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:04,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:04,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321002769] [2024-09-12 18:39:04,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:04,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088814746] [2024-09-12 18:39:04,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088814746] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:04,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:04,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:04,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377379998] [2024-09-12 18:39:04,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:04,476 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:04,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:04,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:04,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:04,477 INFO L87 Difference]: Start difference. First operand 144 states and 175 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:39:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:04,625 INFO L93 Difference]: Finished difference Result 167 states and 185 transitions. [2024-09-12 18:39:04,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:04,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-09-12 18:39:04,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:04,627 INFO L225 Difference]: With dead ends: 167 [2024-09-12 18:39:04,627 INFO L226 Difference]: Without dead ends: 160 [2024-09-12 18:39:04,627 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:04,627 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 47 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:04,628 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 312 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-09-12 18:39:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2024-09-12 18:39:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 88 states have (on average 1.625) internal successors, (143), 123 states have internal predecessors, (143), 16 states have call successors, (16), 6 states have call predecessors, (16), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2024-09-12 18:39:04,660 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 30 [2024-09-12 18:39:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:04,660 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2024-09-12 18:39:04,660 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:39:04,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2024-09-12 18:39:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 18:39:04,662 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:04,662 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:04,680 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:04,863 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:04,865 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:04,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:04,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1127278244, now seen corresponding path program 1 times [2024-09-12 18:39:04,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:04,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471613216] [2024-09-12 18:39:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:04,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:39:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471613216] [2024-09-12 18:39:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471613216] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:05,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:05,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:39:05,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506429245] [2024-09-12 18:39:05,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:05,028 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:05,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:05,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:05,029 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:39:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:05,200 INFO L93 Difference]: Finished difference Result 177 states and 191 transitions. [2024-09-12 18:39:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:05,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2024-09-12 18:39:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:05,202 INFO L225 Difference]: With dead ends: 177 [2024-09-12 18:39:05,202 INFO L226 Difference]: Without dead ends: 176 [2024-09-12 18:39:05,202 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:05,203 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:05,203 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 466 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:05,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-09-12 18:39:05,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2024-09-12 18:39:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 126 states have internal predecessors, (146), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2024-09-12 18:39:05,228 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 34 [2024-09-12 18:39:05,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:05,229 INFO L474 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2024-09-12 18:39:05,229 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:39:05,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,229 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2024-09-12 18:39:05,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 18:39:05,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:05,230 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:05,230 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 18:39:05,230 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:05,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -585887109, now seen corresponding path program 1 times [2024-09-12 18:39:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:05,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640233477] [2024-09-12 18:39:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:39:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:05,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640233477] [2024-09-12 18:39:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640233477] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:05,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:05,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:39:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388888404] [2024-09-12 18:39:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:05,343 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:05,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:05,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:05,344 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:39:05,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:05,494 INFO L93 Difference]: Finished difference Result 243 states and 281 transitions. [2024-09-12 18:39:05,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:05,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-09-12 18:39:05,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:05,496 INFO L225 Difference]: With dead ends: 243 [2024-09-12 18:39:05,496 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 18:39:05,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:05,498 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 32 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:05,499 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 406 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:05,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 18:39:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-09-12 18:39:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 98 states have (on average 1.5612244897959184) internal successors, (153), 133 states have internal predecessors, (153), 16 states have call successors, (16), 8 states have call predecessors, (16), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-09-12 18:39:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2024-09-12 18:39:05,520 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 35 [2024-09-12 18:39:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:05,521 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2024-09-12 18:39:05,521 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 18:39:05,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2024-09-12 18:39:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 18:39:05,524 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:05,524 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:05,524 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 18:39:05,524 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:05,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash -396793027, now seen corresponding path program 1 times [2024-09-12 18:39:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134745621] [2024-09-12 18:39:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:05,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420502653] [2024-09-12 18:39:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:05,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:05,537 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:05,539 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:39:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:05,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:05,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:39:05,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:05,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:05,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134745621] [2024-09-12 18:39:05,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:05,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420502653] [2024-09-12 18:39:05,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420502653] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:05,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:05,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:05,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770499254] [2024-09-12 18:39:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:05,633 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:05,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:05,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:05,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:05,633 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:05,939 INFO L93 Difference]: Finished difference Result 233 states and 304 transitions. [2024-09-12 18:39:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:05,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-09-12 18:39:05,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:05,941 INFO L225 Difference]: With dead ends: 233 [2024-09-12 18:39:05,941 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:39:05,942 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:05,942 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 126 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:05,942 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 117 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:39:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 207. [2024-09-12 18:39:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 141 states have (on average 1.5886524822695036) internal successors, (224), 176 states have internal predecessors, (224), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:39:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 270 transitions. [2024-09-12 18:39:05,971 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 270 transitions. Word has length 37 [2024-09-12 18:39:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:05,971 INFO L474 AbstractCegarLoop]: Abstraction has 207 states and 270 transitions. [2024-09-12 18:39:05,971 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:05,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 270 transitions. [2024-09-12 18:39:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 18:39:05,972 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:05,972 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:05,989 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 18:39:06,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,173 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:06,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash 584318147, now seen corresponding path program 1 times [2024-09-12 18:39:06,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:06,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294935948] [2024-09-12 18:39:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:06,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989596159] [2024-09-12 18:39:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:06,186 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:06,190 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:39:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:06,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:39:06,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:06,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:06,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294935948] [2024-09-12 18:39:06,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:06,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989596159] [2024-09-12 18:39:06,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989596159] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:06,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:06,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:06,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618245604] [2024-09-12 18:39:06,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:06,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:06,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:06,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:06,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:06,300 INFO L87 Difference]: Start difference. First operand 207 states and 270 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:06,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:06,457 INFO L93 Difference]: Finished difference Result 231 states and 295 transitions. [2024-09-12 18:39:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:06,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-09-12 18:39:06,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:06,459 INFO L225 Difference]: With dead ends: 231 [2024-09-12 18:39:06,459 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 18:39:06,460 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:06,460 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 124 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:06,460 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 117 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:06,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 18:39:06,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 208. [2024-09-12 18:39:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 142 states have (on average 1.556338028169014) internal successors, (221), 177 states have internal predecessors, (221), 24 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 18:39:06,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 267 transitions. [2024-09-12 18:39:06,497 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 267 transitions. Word has length 38 [2024-09-12 18:39:06,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:06,498 INFO L474 AbstractCegarLoop]: Abstraction has 208 states and 267 transitions. [2024-09-12 18:39:06,498 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 18:39:06,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 267 transitions. [2024-09-12 18:39:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:39:06,499 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:06,499 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:06,515 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:06,700 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,700 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:06,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1803951921, now seen corresponding path program 1 times [2024-09-12 18:39:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483460542] [2024-09-12 18:39:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:06,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1105984939] [2024-09-12 18:39:06,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:06,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:06,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:06,713 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:06,716 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:39:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:06,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:06,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 18:39:06,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:06,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483460542] [2024-09-12 18:39:06,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105984939] [2024-09-12 18:39:06,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105984939] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:06,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:06,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528403945] [2024-09-12 18:39:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:06,813 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:06,814 INFO L87 Difference]: Start difference. First operand 208 states and 267 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:39:07,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:07,245 INFO L93 Difference]: Finished difference Result 234 states and 299 transitions. [2024-09-12 18:39:07,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:07,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2024-09-12 18:39:07,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:07,248 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:39:07,248 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 18:39:07,249 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:07,249 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 41 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:07,249 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 18:39:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2024-09-12 18:39:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 184 states have internal predecessors, (227), 25 states have call successors, (25), 10 states have call predecessors, (25), 9 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:39:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 275 transitions. [2024-09-12 18:39:07,287 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 275 transitions. Word has length 42 [2024-09-12 18:39:07,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:07,287 INFO L474 AbstractCegarLoop]: Abstraction has 217 states and 275 transitions. [2024-09-12 18:39:07,287 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 18:39:07,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:07,288 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 275 transitions. [2024-09-12 18:39:07,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 18:39:07,288 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:07,288 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:07,303 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:07,489 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:39:07,489 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:07,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:07,490 INFO L85 PathProgramCache]: Analyzing trace with hash 157098285, now seen corresponding path program 1 times [2024-09-12 18:39:07,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:07,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769371898] [2024-09-12 18:39:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:07,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,680 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:39:07,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:07,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769371898] [2024-09-12 18:39:07,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769371898] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:07,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:07,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 18:39:07,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574068555] [2024-09-12 18:39:07,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:07,693 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:07,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:07,694 INFO L87 Difference]: Start difference. First operand 217 states and 275 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:39:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:08,024 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2024-09-12 18:39:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:08,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-09-12 18:39:08,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:08,028 INFO L225 Difference]: With dead ends: 227 [2024-09-12 18:39:08,028 INFO L226 Difference]: Without dead ends: 224 [2024-09-12 18:39:08,028 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:08,029 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 92 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:08,029 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 265 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-09-12 18:39:08,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-09-12 18:39:08,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 154 states have (on average 1.4870129870129871) internal successors, (229), 189 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:39:08,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 277 transitions. [2024-09-12 18:39:08,066 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 277 transitions. Word has length 56 [2024-09-12 18:39:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:08,066 INFO L474 AbstractCegarLoop]: Abstraction has 224 states and 277 transitions. [2024-09-12 18:39:08,067 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 18:39:08,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 277 transitions. [2024-09-12 18:39:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 18:39:08,068 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:08,068 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:08,068 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:39:08,068 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:08,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 647755168, now seen corresponding path program 1 times [2024-09-12 18:39:08,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:08,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855473698] [2024-09-12 18:39:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855473698] [2024-09-12 18:39:08,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855473698] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:08,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:08,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:08,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665433036] [2024-09-12 18:39:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:08,156 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:08,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:08,157 INFO L87 Difference]: Start difference. First operand 224 states and 277 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:08,684 INFO L93 Difference]: Finished difference Result 260 states and 306 transitions. [2024-09-12 18:39:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-09-12 18:39:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:08,686 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:39:08,686 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:39:08,686 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:08,687 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 156 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:08,690 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 111 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:39:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 226. [2024-09-12 18:39:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 191 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:39:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2024-09-12 18:39:08,723 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 58 [2024-09-12 18:39:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:08,724 INFO L474 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2024-09-12 18:39:08,724 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:08,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2024-09-12 18:39:08,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 18:39:08,725 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:08,726 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:08,726 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:39:08,726 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:08,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:08,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1394426161, now seen corresponding path program 1 times [2024-09-12 18:39:08,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:08,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725344083] [2024-09-12 18:39:08,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:08,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,794 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:08,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:08,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725344083] [2024-09-12 18:39:08,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725344083] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:08,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:08,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:08,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986760817] [2024-09-12 18:39:08,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:08,800 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:08,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:08,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:08,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:08,800 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:09,071 INFO L93 Difference]: Finished difference Result 260 states and 302 transitions. [2024-09-12 18:39:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-09-12 18:39:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:09,073 INFO L225 Difference]: With dead ends: 260 [2024-09-12 18:39:09,073 INFO L226 Difference]: Without dead ends: 258 [2024-09-12 18:39:09,073 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:09,074 INFO L434 NwaCegarLoop]: 46 mSDtfsCounter, 153 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:09,074 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 115 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-12 18:39:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 228. [2024-09-12 18:39:09,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4493670886075949) internal successors, (229), 193 states have internal predecessors, (229), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:39:09,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2024-09-12 18:39:09,123 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 59 [2024-09-12 18:39:09,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:09,123 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2024-09-12 18:39:09,123 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:09,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2024-09-12 18:39:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 18:39:09,125 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:09,125 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:09,125 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:39:09,125 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:09,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,126 INFO L85 PathProgramCache]: Analyzing trace with hash -13740697, now seen corresponding path program 1 times [2024-09-12 18:39:09,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:09,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667740874] [2024-09-12 18:39:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:09,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:09,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667740874] [2024-09-12 18:39:09,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667740874] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:09,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:09,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:39:09,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104411827] [2024-09-12 18:39:09,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:09,196 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:39:09,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:09,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:39:09,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:09,197 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:09,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:09,360 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2024-09-12 18:39:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:39:09,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2024-09-12 18:39:09,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:09,362 INFO L225 Difference]: With dead ends: 234 [2024-09-12 18:39:09,362 INFO L226 Difference]: Without dead ends: 233 [2024-09-12 18:39:09,362 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:39:09,363 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 27 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:09,363 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 206 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-09-12 18:39:09,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2024-09-12 18:39:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 193 states have internal predecessors, (228), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 18:39:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2024-09-12 18:39:09,407 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 61 [2024-09-12 18:39:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:09,407 INFO L474 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2024-09-12 18:39:09,407 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:09,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2024-09-12 18:39:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:39:09,408 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:09,408 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:09,409 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:39:09,409 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:09,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash -425961467, now seen corresponding path program 1 times [2024-09-12 18:39:09,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:09,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781452628] [2024-09-12 18:39:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:09,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,486 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:09,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:09,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781452628] [2024-09-12 18:39:09,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781452628] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:09,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:09,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:09,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416161276] [2024-09-12 18:39:09,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:09,487 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:09,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:09,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:09,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:09,488 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:09,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:09,734 INFO L93 Difference]: Finished difference Result 341 states and 429 transitions. [2024-09-12 18:39:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:09,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 62 [2024-09-12 18:39:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:09,738 INFO L225 Difference]: With dead ends: 341 [2024-09-12 18:39:09,739 INFO L226 Difference]: Without dead ends: 340 [2024-09-12 18:39:09,739 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:09,740 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 216 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:09,740 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 272 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-09-12 18:39:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 306. [2024-09-12 18:39:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 225 states have (on average 1.5155555555555555) internal successors, (341), 261 states have internal predecessors, (341), 36 states have call successors, (36), 12 states have call predecessors, (36), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-09-12 18:39:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 411 transitions. [2024-09-12 18:39:09,797 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 411 transitions. Word has length 62 [2024-09-12 18:39:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:09,797 INFO L474 AbstractCegarLoop]: Abstraction has 306 states and 411 transitions. [2024-09-12 18:39:09,797 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:09,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 411 transitions. [2024-09-12 18:39:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-09-12 18:39:09,798 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:09,798 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:09,798 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 18:39:09,798 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:09,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:09,798 INFO L85 PathProgramCache]: Analyzing trace with hash -425960185, now seen corresponding path program 1 times [2024-09-12 18:39:09,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:09,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284358183] [2024-09-12 18:39:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:09,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284358183] [2024-09-12 18:39:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284358183] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:09,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406226326] [2024-09-12 18:39:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:09,882 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:09,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:09,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:09,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:09,882 INFO L87 Difference]: Start difference. First operand 306 states and 411 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:39:10,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:10,614 INFO L93 Difference]: Finished difference Result 417 states and 564 transitions. [2024-09-12 18:39:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:39:10,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2024-09-12 18:39:10,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:10,619 INFO L225 Difference]: With dead ends: 417 [2024-09-12 18:39:10,619 INFO L226 Difference]: Without dead ends: 416 [2024-09-12 18:39:10,619 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:10,620 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 316 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:10,620 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 349 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:39:10,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-09-12 18:39:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 376. [2024-09-12 18:39:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 285 states have (on average 1.5228070175438597) internal successors, (434), 321 states have internal predecessors, (434), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:39:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 524 transitions. [2024-09-12 18:39:10,704 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 524 transitions. Word has length 62 [2024-09-12 18:39:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:10,705 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 524 transitions. [2024-09-12 18:39:10,705 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:39:10,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 524 transitions. [2024-09-12 18:39:10,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:39:10,706 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:10,706 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:10,706 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:39:10,706 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:10,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:10,707 INFO L85 PathProgramCache]: Analyzing trace with hash -319903447, now seen corresponding path program 1 times [2024-09-12 18:39:10,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:10,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222686193] [2024-09-12 18:39:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,770 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:10,775 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:10,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:10,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222686193] [2024-09-12 18:39:10,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222686193] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:10,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:10,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:10,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096007278] [2024-09-12 18:39:10,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:10,777 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:10,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:10,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:10,778 INFO L87 Difference]: Start difference. First operand 376 states and 524 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:11,133 INFO L93 Difference]: Finished difference Result 403 states and 545 transitions. [2024-09-12 18:39:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-09-12 18:39:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:11,136 INFO L225 Difference]: With dead ends: 403 [2024-09-12 18:39:11,136 INFO L226 Difference]: Without dead ends: 401 [2024-09-12 18:39:11,136 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:11,137 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:11,137 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 241 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:11,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-09-12 18:39:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 380. [2024-09-12 18:39:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.5155709342560553) internal successors, (438), 325 states have internal predecessors, (438), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:39:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 528 transitions. [2024-09-12 18:39:11,200 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 528 transitions. Word has length 63 [2024-09-12 18:39:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:11,201 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 528 transitions. [2024-09-12 18:39:11,201 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 18:39:11,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 528 transitions. [2024-09-12 18:39:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 18:39:11,202 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:11,202 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:11,202 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-09-12 18:39:11,202 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:11,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash 288980233, now seen corresponding path program 1 times [2024-09-12 18:39:11,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:11,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309245970] [2024-09-12 18:39:11,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:11,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309245970] [2024-09-12 18:39:11,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309245970] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:11,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375796506] [2024-09-12 18:39:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:11,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:11,344 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:11,346 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:39:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:11,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:11,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:39:11,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:11,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375796506] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:11,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:11,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-09-12 18:39:11,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912632276] [2024-09-12 18:39:11,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:11,489 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:11,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:11,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:11,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:11,489 INFO L87 Difference]: Start difference. First operand 380 states and 528 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:39:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:11,649 INFO L93 Difference]: Finished difference Result 380 states and 528 transitions. [2024-09-12 18:39:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-09-12 18:39:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:11,652 INFO L225 Difference]: With dead ends: 380 [2024-09-12 18:39:11,652 INFO L226 Difference]: Without dead ends: 378 [2024-09-12 18:39:11,652 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:11,653 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 76 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:11,653 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 443 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-09-12 18:39:11,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-09-12 18:39:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 323 states have internal predecessors, (426), 46 states have call successors, (46), 12 states have call predecessors, (46), 11 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 18:39:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 516 transitions. [2024-09-12 18:39:11,716 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 516 transitions. Word has length 66 [2024-09-12 18:39:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:11,716 INFO L474 AbstractCegarLoop]: Abstraction has 378 states and 516 transitions. [2024-09-12 18:39:11,716 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-09-12 18:39:11,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 516 transitions. [2024-09-12 18:39:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:39:11,717 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:11,717 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:11,734 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 18:39:11,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 18:39:11,922 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:11,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 368452685, now seen corresponding path program 1 times [2024-09-12 18:39:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:11,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907339653] [2024-09-12 18:39:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:11,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,026 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,035 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,039 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:12,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:12,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907339653] [2024-09-12 18:39:12,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907339653] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:12,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801315998] [2024-09-12 18:39:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:12,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:12,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:12,050 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:39:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:12,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:12,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 18:39:12,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:12,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801315998] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:12,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:12,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 17 [2024-09-12 18:39:12,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306888874] [2024-09-12 18:39:12,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:12,339 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:39:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:39:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:12,340 INFO L87 Difference]: Start difference. First operand 378 states and 516 transitions. Second operand has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:39:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:12,793 INFO L93 Difference]: Finished difference Result 575 states and 732 transitions. [2024-09-12 18:39:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:39:12,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) Word has length 67 [2024-09-12 18:39:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:12,797 INFO L225 Difference]: With dead ends: 575 [2024-09-12 18:39:12,798 INFO L226 Difference]: Without dead ends: 558 [2024-09-12 18:39:12,798 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:39:12,799 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 207 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:12,799 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 720 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:12,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-09-12 18:39:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 510. [2024-09-12 18:39:12,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 399 states have (on average 1.443609022556391) internal successors, (576), 436 states have internal predecessors, (576), 57 states have call successors, (57), 23 states have call predecessors, (57), 22 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:39:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 687 transitions. [2024-09-12 18:39:12,897 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 687 transitions. Word has length 67 [2024-09-12 18:39:12,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:12,898 INFO L474 AbstractCegarLoop]: Abstraction has 510 states and 687 transitions. [2024-09-12 18:39:12,898 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 8 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 7 states have call predecessors, (21), 8 states have call successors, (21) [2024-09-12 18:39:12,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:12,898 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 687 transitions. [2024-09-12 18:39:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:39:12,899 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:12,899 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:12,915 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:39:13,103 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:13,104 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:13,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1858588721, now seen corresponding path program 1 times [2024-09-12 18:39:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:13,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849415437] [2024-09-12 18:39:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,226 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,229 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:13,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:13,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849415437] [2024-09-12 18:39:13,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849415437] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:13,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352290669] [2024-09-12 18:39:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:13,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:13,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:13,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:13,252 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:39:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:13,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:13,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:13,436 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:13,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 18:39:13,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352290669] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:13,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:39:13,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 9] total 13 [2024-09-12 18:39:13,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181267486] [2024-09-12 18:39:13,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:13,511 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:13,512 INFO L87 Difference]: Start difference. First operand 510 states and 687 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:14,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:14,060 INFO L93 Difference]: Finished difference Result 539 states and 729 transitions. [2024-09-12 18:39:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:14,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-09-12 18:39:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:14,064 INFO L225 Difference]: With dead ends: 539 [2024-09-12 18:39:14,064 INFO L226 Difference]: Without dead ends: 537 [2024-09-12 18:39:14,064 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:14,065 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 34 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:14,065 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 257 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:14,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-09-12 18:39:14,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 518. [2024-09-12 18:39:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 405 states have (on average 1.434567901234568) internal successors, (581), 442 states have internal predecessors, (581), 57 states have call successors, (57), 25 states have call predecessors, (57), 24 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 18:39:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 692 transitions. [2024-09-12 18:39:14,183 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 692 transitions. Word has length 68 [2024-09-12 18:39:14,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:14,183 INFO L474 AbstractCegarLoop]: Abstraction has 518 states and 692 transitions. [2024-09-12 18:39:14,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 18:39:14,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 692 transitions. [2024-09-12 18:39:14,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 18:39:14,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:14,185 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:14,203 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 18:39:14,389 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 18:39:14,390 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:14,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash 860044850, now seen corresponding path program 1 times [2024-09-12 18:39:14,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:14,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814206807] [2024-09-12 18:39:14,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:14,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404052379] [2024-09-12 18:39:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:14,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:14,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:14,403 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:14,407 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 18:39:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:14,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:39:14,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:14,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:14,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:14,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814206807] [2024-09-12 18:39:14,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:14,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404052379] [2024-09-12 18:39:14,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404052379] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:14,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:14,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:14,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168874936] [2024-09-12 18:39:14,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:14,723 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:14,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:14,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:14,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:14,723 INFO L87 Difference]: Start difference. First operand 518 states and 692 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:15,283 INFO L93 Difference]: Finished difference Result 715 states and 976 transitions. [2024-09-12 18:39:15,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:15,283 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 76 [2024-09-12 18:39:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:15,287 INFO L225 Difference]: With dead ends: 715 [2024-09-12 18:39:15,287 INFO L226 Difference]: Without dead ends: 706 [2024-09-12 18:39:15,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:15,288 INFO L434 NwaCegarLoop]: 76 mSDtfsCounter, 297 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:15,288 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 245 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:15,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-09-12 18:39:15,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 675. [2024-09-12 18:39:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 540 states have (on average 1.4148148148148147) internal successors, (764), 579 states have internal predecessors, (764), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 18:39:15,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 919 transitions. [2024-09-12 18:39:15,437 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 919 transitions. Word has length 76 [2024-09-12 18:39:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:15,437 INFO L474 AbstractCegarLoop]: Abstraction has 675 states and 919 transitions. [2024-09-12 18:39:15,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:15,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,438 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 919 transitions. [2024-09-12 18:39:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 18:39:15,438 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:15,438 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:15,455 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:15,639 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:15,639 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:15,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash 891586642, now seen corresponding path program 1 times [2024-09-12 18:39:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448986935] [2024-09-12 18:39:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:15,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:15,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593608719] [2024-09-12 18:39:15,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:15,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:15,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:15,653 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:15,654 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 18:39:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:15,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:39:15,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:15,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:16,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:16,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448986935] [2024-09-12 18:39:16,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:16,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593608719] [2024-09-12 18:39:16,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593608719] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:16,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:16,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159648607] [2024-09-12 18:39:16,771 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:16,772 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:16,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:16,772 INFO L87 Difference]: Start difference. First operand 675 states and 919 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:17,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:17,262 INFO L93 Difference]: Finished difference Result 740 states and 993 transitions. [2024-09-12 18:39:17,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:17,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 77 [2024-09-12 18:39:17,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:17,267 INFO L225 Difference]: With dead ends: 740 [2024-09-12 18:39:17,267 INFO L226 Difference]: Without dead ends: 737 [2024-09-12 18:39:17,268 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:17,268 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 148 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:17,268 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 337 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:17,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-09-12 18:39:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 704. [2024-09-12 18:39:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 565 states have (on average 1.4123893805309735) internal successors, (798), 603 states have internal predecessors, (798), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 75 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 961 transitions. [2024-09-12 18:39:17,413 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 961 transitions. Word has length 77 [2024-09-12 18:39:17,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:17,413 INFO L474 AbstractCegarLoop]: Abstraction has 704 states and 961 transitions. [2024-09-12 18:39:17,414 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:17,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 961 transitions. [2024-09-12 18:39:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:17,415 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:17,415 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:17,432 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 18:39:17,615 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 18:39:17,616 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:17,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1869382196, now seen corresponding path program 1 times [2024-09-12 18:39:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:17,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357620259] [2024-09-12 18:39:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:17,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:17,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357620259] [2024-09-12 18:39:17,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357620259] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:17,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:17,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 18:39:17,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177320618] [2024-09-12 18:39:17,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:17,753 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:17,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:17,754 INFO L87 Difference]: Start difference. First operand 704 states and 961 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:18,973 INFO L93 Difference]: Finished difference Result 978 states and 1363 transitions. [2024-09-12 18:39:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:39:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-09-12 18:39:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:18,980 INFO L225 Difference]: With dead ends: 978 [2024-09-12 18:39:18,980 INFO L226 Difference]: Without dead ends: 975 [2024-09-12 18:39:18,980 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:18,981 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 171 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:18,982 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 291 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:39:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-09-12 18:39:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 719. [2024-09-12 18:39:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 581 states have (on average 1.395869191049914) internal successors, (811), 614 states have internal predecessors, (811), 83 states have call successors, (83), 25 states have call predecessors, (83), 24 states have return successors, (80), 79 states have call predecessors, (80), 80 states have call successors, (80) [2024-09-12 18:39:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 974 transitions. [2024-09-12 18:39:19,158 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 974 transitions. Word has length 78 [2024-09-12 18:39:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:19,160 INFO L474 AbstractCegarLoop]: Abstraction has 719 states and 974 transitions. [2024-09-12 18:39:19,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:39:19,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 974 transitions. [2024-09-12 18:39:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:19,161 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:19,162 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:19,162 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-09-12 18:39:19,162 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:19,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:19,162 INFO L85 PathProgramCache]: Analyzing trace with hash -22819434, now seen corresponding path program 1 times [2024-09-12 18:39:19,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:19,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293167336] [2024-09-12 18:39:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,280 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,283 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:19,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:19,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293167336] [2024-09-12 18:39:19,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293167336] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:19,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450429523] [2024-09-12 18:39:19,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:19,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:19,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:19,289 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:19,291 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 18:39:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:19,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:19,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 18:39:19,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:19,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450429523] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:19,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:19,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 18 [2024-09-12 18:39:19,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113350175] [2024-09-12 18:39:19,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:19,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:39:19,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:19,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:39:19,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:19,558 INFO L87 Difference]: Start difference. First operand 719 states and 974 transitions. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-12 18:39:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:20,050 INFO L93 Difference]: Finished difference Result 1147 states and 1497 transitions. [2024-09-12 18:39:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 18:39:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) Word has length 78 [2024-09-12 18:39:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:20,054 INFO L225 Difference]: With dead ends: 1147 [2024-09-12 18:39:20,055 INFO L226 Difference]: Without dead ends: 878 [2024-09-12 18:39:20,056 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=999, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:39:20,056 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 272 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:20,056 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 812 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-09-12 18:39:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 818. [2024-09-12 18:39:20,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 661 states have (on average 1.384266263237519) internal successors, (915), 694 states have internal predecessors, (915), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1099 transitions. [2024-09-12 18:39:20,267 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1099 transitions. Word has length 78 [2024-09-12 18:39:20,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:20,267 INFO L474 AbstractCegarLoop]: Abstraction has 818 states and 1099 transitions. [2024-09-12 18:39:20,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 17 states have internal predecessors, (101), 8 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2024-09-12 18:39:20,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1099 transitions. [2024-09-12 18:39:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 18:39:20,269 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:20,269 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:20,285 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 18:39:20,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 18:39:20,473 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:20,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash -22819416, now seen corresponding path program 1 times [2024-09-12 18:39:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:20,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096608119] [2024-09-12 18:39:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:20,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:20,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846085773] [2024-09-12 18:39:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:20,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:20,487 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:20,489 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 18:39:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:20,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:20,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:20,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:20,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:20,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096608119] [2024-09-12 18:39:20,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:20,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846085773] [2024-09-12 18:39:20,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846085773] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:20,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:20,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:39:20,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744237416] [2024-09-12 18:39:20,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:20,679 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:20,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:20,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:20,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:20,680 INFO L87 Difference]: Start difference. First operand 818 states and 1099 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:21,033 INFO L93 Difference]: Finished difference Result 847 states and 1139 transitions. [2024-09-12 18:39:21,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2024-09-12 18:39:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:21,038 INFO L225 Difference]: With dead ends: 847 [2024-09-12 18:39:21,038 INFO L226 Difference]: Without dead ends: 843 [2024-09-12 18:39:21,039 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:39:21,039 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 168 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:21,039 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 368 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-09-12 18:39:21,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 814. [2024-09-12 18:39:21,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 661 states have (on average 1.3570347957639939) internal successors, (897), 690 states have internal predecessors, (897), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:21,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1081 transitions. [2024-09-12 18:39:21,236 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1081 transitions. Word has length 78 [2024-09-12 18:39:21,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:21,236 INFO L474 AbstractCegarLoop]: Abstraction has 814 states and 1081 transitions. [2024-09-12 18:39:21,237 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:21,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:21,237 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1081 transitions. [2024-09-12 18:39:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:21,237 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:21,238 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:21,254 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 18:39:21,438 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:21,438 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:21,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash 2116273300, now seen corresponding path program 1 times [2024-09-12 18:39:21,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:21,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802345149] [2024-09-12 18:39:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:21,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:21,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324945918] [2024-09-12 18:39:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:21,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:21,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:21,452 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:21,454 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 18:39:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:21,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:39:21,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:21,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:25,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:25,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802345149] [2024-09-12 18:39:25,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:25,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324945918] [2024-09-12 18:39:25,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324945918] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:25,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:25,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 18:39:25,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852892802] [2024-09-12 18:39:25,977 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:25,977 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:25,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:25,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2024-09-12 18:39:25,981 INFO L87 Difference]: Start difference. First operand 814 states and 1081 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:26,541 INFO L93 Difference]: Finished difference Result 839 states and 1095 transitions. [2024-09-12 18:39:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:26,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 79 [2024-09-12 18:39:26,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:26,545 INFO L225 Difference]: With dead ends: 839 [2024-09-12 18:39:26,545 INFO L226 Difference]: Without dead ends: 836 [2024-09-12 18:39:26,546 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=53, Invalid=156, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:39:26,546 INFO L434 NwaCegarLoop]: 100 mSDtfsCounter, 269 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:26,547 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 298 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:26,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-09-12 18:39:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 814. [2024-09-12 18:39:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 661 states have (on average 1.3509833585476552) internal successors, (893), 690 states have internal predecessors, (893), 94 states have call successors, (94), 33 states have call predecessors, (94), 32 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-09-12 18:39:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1077 transitions. [2024-09-12 18:39:26,724 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1077 transitions. Word has length 79 [2024-09-12 18:39:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:26,725 INFO L474 AbstractCegarLoop]: Abstraction has 814 states and 1077 transitions. [2024-09-12 18:39:26,725 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 5 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 18:39:26,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1077 transitions. [2024-09-12 18:39:26,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 18:39:26,726 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:26,726 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:26,745 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 18:39:26,930 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 18:39:26,931 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:26,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash -707401800, now seen corresponding path program 1 times [2024-09-12 18:39:26,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:26,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403338345] [2024-09-12 18:39:26,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:26,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:26,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870540575] [2024-09-12 18:39:26,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:26,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:26,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:26,950 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:26,954 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 18:39:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:27,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:39:27,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:27,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:27,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:27,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403338345] [2024-09-12 18:39:27,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:27,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870540575] [2024-09-12 18:39:27,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870540575] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:27,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:27,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 18:39:27,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496813717] [2024-09-12 18:39:27,392 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:27,392 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:39:27,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:27,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:39:27,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:27,393 INFO L87 Difference]: Start difference. First operand 814 states and 1077 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:27,807 INFO L93 Difference]: Finished difference Result 1183 states and 1644 transitions. [2024-09-12 18:39:27,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:39:27,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 79 [2024-09-12 18:39:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:27,813 INFO L225 Difference]: With dead ends: 1183 [2024-09-12 18:39:27,813 INFO L226 Difference]: Without dead ends: 1179 [2024-09-12 18:39:27,813 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:39:27,813 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 195 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:27,814 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 407 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:39:27,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-09-12 18:39:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 965. [2024-09-12 18:39:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 792 states have (on average 1.35479797979798) internal successors, (1073), 821 states have internal predecessors, (1073), 114 states have call successors, (114), 33 states have call predecessors, (114), 32 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-09-12 18:39:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1297 transitions. [2024-09-12 18:39:28,019 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1297 transitions. Word has length 79 [2024-09-12 18:39:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:28,020 INFO L474 AbstractCegarLoop]: Abstraction has 965 states and 1297 transitions. [2024-09-12 18:39:28,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:28,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:28,020 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1297 transitions. [2024-09-12 18:39:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:28,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:28,021 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:28,038 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 18:39:28,222 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:28,222 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:28,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:28,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2028294716, now seen corresponding path program 1 times [2024-09-12 18:39:28,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:28,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519869925] [2024-09-12 18:39:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:28,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:28,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636150733] [2024-09-12 18:39:28,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:28,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:28,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:28,239 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:28,241 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 18:39:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:28,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 18:39:28,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:28,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:28,997 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:28,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:28,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519869925] [2024-09-12 18:39:28,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:28,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636150733] [2024-09-12 18:39:28,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636150733] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:28,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:28,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 19 [2024-09-12 18:39:28,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848377901] [2024-09-12 18:39:28,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:28,998 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:28,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:28,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:28,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:28,999 INFO L87 Difference]: Start difference. First operand 965 states and 1297 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:29,992 INFO L93 Difference]: Finished difference Result 1116 states and 1508 transitions. [2024-09-12 18:39:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 83 [2024-09-12 18:39:29,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:29,998 INFO L225 Difference]: With dead ends: 1116 [2024-09-12 18:39:29,998 INFO L226 Difference]: Without dead ends: 1108 [2024-09-12 18:39:29,999 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:29,999 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 181 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:29,999 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 294 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-09-12 18:39:30,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1082. [2024-09-12 18:39:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 890 states have (on average 1.3561797752808988) internal successors, (1207), 918 states have internal predecessors, (1207), 131 states have call successors, (131), 35 states have call predecessors, (131), 34 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 18:39:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1466 transitions. [2024-09-12 18:39:30,233 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1466 transitions. Word has length 83 [2024-09-12 18:39:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:30,233 INFO L474 AbstractCegarLoop]: Abstraction has 1082 states and 1466 transitions. [2024-09-12 18:39:30,233 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:39:30,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1466 transitions. [2024-09-12 18:39:30,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 18:39:30,234 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:30,234 INFO L216 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:30,246 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:30,435 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,435 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:30,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:30,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1526757466, now seen corresponding path program 1 times [2024-09-12 18:39:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:30,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86294655] [2024-09-12 18:39:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447505104] [2024-09-12 18:39:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:30,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:30,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:30,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:30,452 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 18:39:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:30,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 18:39:30,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 18:39:30,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:30,720 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-12 18:39:30,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:30,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86294655] [2024-09-12 18:39:30,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:30,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447505104] [2024-09-12 18:39:30,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447505104] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:30,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:30,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 18:39:30,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472103083] [2024-09-12 18:39:30,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:30,721 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:39:30,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:30,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:39:30,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:30,722 INFO L87 Difference]: Start difference. First operand 1082 states and 1466 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:31,324 INFO L93 Difference]: Finished difference Result 1104 states and 1487 transitions. [2024-09-12 18:39:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:39:31,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-09-12 18:39:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:31,329 INFO L225 Difference]: With dead ends: 1104 [2024-09-12 18:39:31,329 INFO L226 Difference]: Without dead ends: 1102 [2024-09-12 18:39:31,329 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:31,330 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 47 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:31,330 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 149 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-09-12 18:39:31,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2024-09-12 18:39:31,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 905 states have (on average 1.3502762430939226) internal successors, (1222), 933 states have internal predecessors, (1222), 131 states have call successors, (131), 40 states have call predecessors, (131), 39 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2024-09-12 18:39:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1481 transitions. [2024-09-12 18:39:31,581 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1481 transitions. Word has length 83 [2024-09-12 18:39:31,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:31,581 INFO L474 AbstractCegarLoop]: Abstraction has 1102 states and 1481 transitions. [2024-09-12 18:39:31,582 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-12 18:39:31,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1481 transitions. [2024-09-12 18:39:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 18:39:31,583 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:31,583 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:31,595 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:31,783 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 18:39:31,783 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:31,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash 770167829, now seen corresponding path program 1 times [2024-09-12 18:39:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132147480] [2024-09-12 18:39:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,838 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,842 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,844 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132147480] [2024-09-12 18:39:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132147480] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561390989] [2024-09-12 18:39:31,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:31,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:31,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:31,861 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:31,863 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 18:39:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:31,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:31,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:31,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:32,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561390989] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:32,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:32,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-09-12 18:39:32,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533394466] [2024-09-12 18:39:32,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:32,092 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:32,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:32,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:32,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:32,093 INFO L87 Difference]: Start difference. First operand 1102 states and 1481 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:32,973 INFO L93 Difference]: Finished difference Result 1697 states and 2379 transitions. [2024-09-12 18:39:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:32,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 99 [2024-09-12 18:39:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:32,988 INFO L225 Difference]: With dead ends: 1697 [2024-09-12 18:39:32,988 INFO L226 Difference]: Without dead ends: 1695 [2024-09-12 18:39:32,988 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:32,989 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 314 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:32,989 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 443 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-09-12 18:39:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1398. [2024-09-12 18:39:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1150 states have (on average 1.357391304347826) internal successors, (1561), 1177 states have internal predecessors, (1561), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1924 transitions. [2024-09-12 18:39:33,426 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1924 transitions. Word has length 99 [2024-09-12 18:39:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:33,426 INFO L474 AbstractCegarLoop]: Abstraction has 1398 states and 1924 transitions. [2024-09-12 18:39:33,426 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 18:39:33,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1924 transitions. [2024-09-12 18:39:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 18:39:33,428 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:33,428 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:33,444 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 18:39:33,628 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:33,629 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:33,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1894600966, now seen corresponding path program 1 times [2024-09-12 18:39:33,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:33,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326192067] [2024-09-12 18:39:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:33,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,709 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,716 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:33,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:33,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326192067] [2024-09-12 18:39:33,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326192067] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:33,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156159070] [2024-09-12 18:39:33,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:33,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:33,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:33,730 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:33,732 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 18:39:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:33,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:33,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:33,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:33,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156159070] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:33,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:33,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 11 [2024-09-12 18:39:33,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607349020] [2024-09-12 18:39:33,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:33,993 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:33,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:33,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:33,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:33,994 INFO L87 Difference]: Start difference. First operand 1398 states and 1924 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:35,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:35,069 INFO L93 Difference]: Finished difference Result 1729 states and 2378 transitions. [2024-09-12 18:39:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:39:35,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) Word has length 100 [2024-09-12 18:39:35,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:35,076 INFO L225 Difference]: With dead ends: 1729 [2024-09-12 18:39:35,076 INFO L226 Difference]: Without dead ends: 1727 [2024-09-12 18:39:35,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:39:35,077 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 853 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:35,077 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 577 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-09-12 18:39:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1404. [2024-09-12 18:39:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1157 states have (on average 1.3197925669835782) internal successors, (1527), 1183 states have internal predecessors, (1527), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1890 transitions. [2024-09-12 18:39:35,401 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1890 transitions. Word has length 100 [2024-09-12 18:39:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:35,401 INFO L474 AbstractCegarLoop]: Abstraction has 1404 states and 1890 transitions. [2024-09-12 18:39:35,401 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 11 states have internal predecessors, (129), 10 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 10 states have call predecessors, (27), 10 states have call successors, (27) [2024-09-12 18:39:35,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1890 transitions. [2024-09-12 18:39:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 18:39:35,402 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:35,402 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:35,418 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:35,602 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 18:39:35,603 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:35,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash 354608850, now seen corresponding path program 1 times [2024-09-12 18:39:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:35,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738898849] [2024-09-12 18:39:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:35,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,673 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:35,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738898849] [2024-09-12 18:39:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738898849] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:35,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:39:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194243394] [2024-09-12 18:39:35,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:35,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:39:35,678 INFO L87 Difference]: Start difference. First operand 1404 states and 1890 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:36,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:36,231 INFO L93 Difference]: Finished difference Result 1404 states and 1890 transitions. [2024-09-12 18:39:36,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:36,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-09-12 18:39:36,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:36,237 INFO L225 Difference]: With dead ends: 1404 [2024-09-12 18:39:36,237 INFO L226 Difference]: Without dead ends: 1403 [2024-09-12 18:39:36,237 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:39:36,238 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:36,238 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 196 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:39:36,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-09-12 18:39:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1403. [2024-09-12 18:39:36,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1157 states have (on average 1.3120138288677614) internal successors, (1518), 1182 states have internal predecessors, (1518), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1881 transitions. [2024-09-12 18:39:36,681 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1881 transitions. Word has length 102 [2024-09-12 18:39:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:36,681 INFO L474 AbstractCegarLoop]: Abstraction has 1403 states and 1881 transitions. [2024-09-12 18:39:36,682 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 18:39:36,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1881 transitions. [2024-09-12 18:39:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 18:39:36,683 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:36,683 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:36,683 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-09-12 18:39:36,683 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:36,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1476692948, now seen corresponding path program 1 times [2024-09-12 18:39:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:36,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055318621] [2024-09-12 18:39:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,765 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,768 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,778 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,780 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:36,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055318621] [2024-09-12 18:39:36,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055318621] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527916349] [2024-09-12 18:39:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:36,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:36,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:36,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:36,788 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 18:39:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:36,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:36,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:36,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:36,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527916349] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:36,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 18:39:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567709086] [2024-09-12 18:39:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:36,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:36,993 INFO L87 Difference]: Start difference. First operand 1403 states and 1881 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:37,609 INFO L93 Difference]: Finished difference Result 1424 states and 1914 transitions. [2024-09-12 18:39:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:39:37,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-09-12 18:39:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:37,617 INFO L225 Difference]: With dead ends: 1424 [2024-09-12 18:39:37,618 INFO L226 Difference]: Without dead ends: 1423 [2024-09-12 18:39:37,618 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:39:37,619 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 81 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:37,620 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 156 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-09-12 18:39:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1402. [2024-09-12 18:39:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1157 states have (on average 1.3059636992221262) internal successors, (1511), 1181 states have internal predecessors, (1511), 183 states have call successors, (183), 40 states have call predecessors, (183), 39 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-09-12 18:39:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1874 transitions. [2024-09-12 18:39:38,073 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1874 transitions. Word has length 104 [2024-09-12 18:39:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:38,074 INFO L474 AbstractCegarLoop]: Abstraction has 1402 states and 1874 transitions. [2024-09-12 18:39:38,074 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-09-12 18:39:38,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1874 transitions. [2024-09-12 18:39:38,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-09-12 18:39:38,075 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:38,075 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:38,087 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-09-12 18:39:38,275 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 18:39:38,275 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:38,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1467158724, now seen corresponding path program 1 times [2024-09-12 18:39:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829346627] [2024-09-12 18:39:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,364 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829346627] [2024-09-12 18:39:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829346627] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908310504] [2024-09-12 18:39:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:38,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:38,376 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:38,378 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 18:39:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:38,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:38,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:38,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-09-12 18:39:38,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908310504] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:38,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:38,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-09-12 18:39:38,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442531477] [2024-09-12 18:39:38,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:38,692 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:38,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:38,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-09-12 18:39:38,693 INFO L87 Difference]: Start difference. First operand 1402 states and 1874 transitions. Second operand has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:39,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:39,693 INFO L93 Difference]: Finished difference Result 1654 states and 2219 transitions. [2024-09-12 18:39:39,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:39,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 105 [2024-09-12 18:39:39,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:39,701 INFO L225 Difference]: With dead ends: 1654 [2024-09-12 18:39:39,701 INFO L226 Difference]: Without dead ends: 1652 [2024-09-12 18:39:39,702 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:39,702 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 379 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:39,702 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 346 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:39:39,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-09-12 18:39:40,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1488. [2024-09-12 18:39:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1234 states have (on average 1.3030794165316046) internal successors, (1608), 1258 states have internal predecessors, (1608), 192 states have call successors, (192), 40 states have call predecessors, (192), 39 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2024-09-12 18:39:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1989 transitions. [2024-09-12 18:39:40,179 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1989 transitions. Word has length 105 [2024-09-12 18:39:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:40,180 INFO L474 AbstractCegarLoop]: Abstraction has 1488 states and 1989 transitions. [2024-09-12 18:39:40,180 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.454545454545455) internal successors, (159), 11 states have internal predecessors, (159), 10 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 18:39:40,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1989 transitions. [2024-09-12 18:39:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-09-12 18:39:40,181 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:40,181 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:40,197 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 18:39:40,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-09-12 18:39:40,381 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:40,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:40,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1943789670, now seen corresponding path program 2 times [2024-09-12 18:39:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:40,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804493282] [2024-09-12 18:39:40,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:40,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,524 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,526 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,529 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,531 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,547 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:40,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:40,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804493282] [2024-09-12 18:39:40,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804493282] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:40,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666939192] [2024-09-12 18:39:40,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:40,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:40,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:40,551 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:40,552 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 18:39:40,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:40,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:40,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:39:40,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 48 proven. 26 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-09-12 18:39:40,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 18:39:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666939192] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:40,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 7] total 14 [2024-09-12 18:39:40,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692019629] [2024-09-12 18:39:40,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:40,857 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:39:40,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:39:40,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:40,858 INFO L87 Difference]: Start difference. First operand 1488 states and 1989 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:42,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:42,113 INFO L93 Difference]: Finished difference Result 1553 states and 2069 transitions. [2024-09-12 18:39:42,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:42,113 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 109 [2024-09-12 18:39:42,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:42,119 INFO L225 Difference]: With dead ends: 1553 [2024-09-12 18:39:42,119 INFO L226 Difference]: Without dead ends: 1551 [2024-09-12 18:39:42,120 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:39:42,120 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 180 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:42,120 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 243 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:39:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2024-09-12 18:39:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1538. [2024-09-12 18:39:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1280 states have (on average 1.30390625) internal successors, (1669), 1306 states have internal predecessors, (1669), 194 states have call successors, (194), 42 states have call predecessors, (194), 41 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-09-12 18:39:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2054 transitions. [2024-09-12 18:39:42,582 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2054 transitions. Word has length 109 [2024-09-12 18:39:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:42,583 INFO L474 AbstractCegarLoop]: Abstraction has 1538 states and 2054 transitions. [2024-09-12 18:39:42,583 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 12 states have internal predecessors, (88), 6 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-09-12 18:39:42,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2054 transitions. [2024-09-12 18:39:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-09-12 18:39:42,584 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:42,584 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:42,596 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:42,784 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 18:39:42,784 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:42,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash 868431915, now seen corresponding path program 1 times [2024-09-12 18:39:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:42,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434931517] [2024-09-12 18:39:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:39:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:39:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,897 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:42,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434931517] [2024-09-12 18:39:42,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434931517] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:42,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787010208] [2024-09-12 18:39:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:42,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:42,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:42,900 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:42,902 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 18:39:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:42,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:39:42,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:43,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787010208] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:39:43,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:39:43,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 10 [2024-09-12 18:39:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972875515] [2024-09-12 18:39:43,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:43,261 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:39:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:39:43,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 18:39:43,262 INFO L87 Difference]: Start difference. First operand 1538 states and 2054 transitions. Second operand has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:44,103 INFO L93 Difference]: Finished difference Result 1589 states and 2110 transitions. [2024-09-12 18:39:44,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:44,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) Word has length 115 [2024-09-12 18:39:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:44,114 INFO L225 Difference]: With dead ends: 1589 [2024-09-12 18:39:44,114 INFO L226 Difference]: Without dead ends: 1588 [2024-09-12 18:39:44,115 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:39:44,116 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 480 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:44,116 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 369 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:44,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-09-12 18:39:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1537. [2024-09-12 18:39:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1280 states have (on average 1.3015625) internal successors, (1666), 1305 states have internal predecessors, (1666), 194 states have call successors, (194), 42 states have call predecessors, (194), 41 states have return successors, (191), 189 states have call predecessors, (191), 191 states have call successors, (191) [2024-09-12 18:39:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2051 transitions. [2024-09-12 18:39:44,507 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2051 transitions. Word has length 115 [2024-09-12 18:39:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:44,507 INFO L474 AbstractCegarLoop]: Abstraction has 1537 states and 2051 transitions. [2024-09-12 18:39:44,508 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 9 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 9 states have call predecessors, (20), 9 states have call successors, (20) [2024-09-12 18:39:44,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2051 transitions. [2024-09-12 18:39:44,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-09-12 18:39:44,509 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:44,509 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:44,524 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:44,709 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:44,709 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:44,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:44,710 INFO L85 PathProgramCache]: Analyzing trace with hash -579712665, now seen corresponding path program 1 times [2024-09-12 18:39:44,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:44,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781245943] [2024-09-12 18:39:44,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:44,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:44,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846298847] [2024-09-12 18:39:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:44,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:44,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:44,725 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:44,727 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 18:39:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:44,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:44,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:45,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:45,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:45,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781245943] [2024-09-12 18:39:45,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:45,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846298847] [2024-09-12 18:39:45,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846298847] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:45,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692964799] [2024-09-12 18:39:45,322 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:45,322 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:45,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:45,324 INFO L87 Difference]: Start difference. First operand 1537 states and 2051 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:46,786 INFO L93 Difference]: Finished difference Result 2300 states and 3147 transitions. [2024-09-12 18:39:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:39:46,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 117 [2024-09-12 18:39:46,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:46,794 INFO L225 Difference]: With dead ends: 2300 [2024-09-12 18:39:46,794 INFO L226 Difference]: Without dead ends: 2297 [2024-09-12 18:39:46,795 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:39:46,795 INFO L434 NwaCegarLoop]: 129 mSDtfsCounter, 253 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:46,795 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 531 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2024-09-12 18:39:47,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 1553. [2024-09-12 18:39:47,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1293 states have (on average 1.2985305491105956) internal successors, (1679), 1318 states have internal predecessors, (1679), 197 states have call successors, (197), 42 states have call predecessors, (197), 41 states have return successors, (194), 192 states have call predecessors, (194), 194 states have call successors, (194) [2024-09-12 18:39:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2070 transitions. [2024-09-12 18:39:47,235 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2070 transitions. Word has length 117 [2024-09-12 18:39:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:47,235 INFO L474 AbstractCegarLoop]: Abstraction has 1553 states and 2070 transitions. [2024-09-12 18:39:47,235 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:47,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2070 transitions. [2024-09-12 18:39:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:39:47,236 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:47,236 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:47,248 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 18:39:47,437 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 18:39:47,437 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:47,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash -791223363, now seen corresponding path program 1 times [2024-09-12 18:39:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:47,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306334324] [2024-09-12 18:39:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:47,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498491498] [2024-09-12 18:39:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:47,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:47,458 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:47,460 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-09-12 18:39:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:47,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:39:47,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:47,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:48,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:48,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306334324] [2024-09-12 18:39:48,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:48,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498491498] [2024-09-12 18:39:48,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498491498] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:48,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:48,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 18:39:48,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047888570] [2024-09-12 18:39:48,400 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:48,400 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 18:39:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:48,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 18:39:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-09-12 18:39:48,401 INFO L87 Difference]: Start difference. First operand 1553 states and 2070 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:49,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:49,231 INFO L93 Difference]: Finished difference Result 1653 states and 2194 transitions. [2024-09-12 18:39:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 18:39:49,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 118 [2024-09-12 18:39:49,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:49,236 INFO L225 Difference]: With dead ends: 1653 [2024-09-12 18:39:49,236 INFO L226 Difference]: Without dead ends: 1650 [2024-09-12 18:39:49,237 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:49,237 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 89 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:49,237 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 354 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-09-12 18:39:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1627. [2024-09-12 18:39:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1355 states have (on average 1.2966789667896679) internal successors, (1757), 1380 states have internal predecessors, (1757), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2172 transitions. [2024-09-12 18:39:49,664 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2172 transitions. Word has length 118 [2024-09-12 18:39:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:49,664 INFO L474 AbstractCegarLoop]: Abstraction has 1627 states and 2172 transitions. [2024-09-12 18:39:49,664 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 10 states have internal predecessors, (66), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:49,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:49,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2172 transitions. [2024-09-12 18:39:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-09-12 18:39:49,665 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:49,665 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:49,677 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:49,866 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:49,866 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:49,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:49,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1241879593, now seen corresponding path program 1 times [2024-09-12 18:39:49,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386752317] [2024-09-12 18:39:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:49,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:39:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,988 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:39:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:39:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:39:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386752317] [2024-09-12 18:39:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386752317] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:39:49,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:39:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737866753] [2024-09-12 18:39:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:49,994 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:39:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:39:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:39:49,995 INFO L87 Difference]: Start difference. First operand 1627 states and 2172 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:51,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:51,384 INFO L93 Difference]: Finished difference Result 1635 states and 2176 transitions. [2024-09-12 18:39:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:39:51,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 119 [2024-09-12 18:39:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:51,388 INFO L225 Difference]: With dead ends: 1635 [2024-09-12 18:39:51,388 INFO L226 Difference]: Without dead ends: 1633 [2024-09-12 18:39:51,389 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:51,389 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 117 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:51,389 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 253 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:39:51,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-09-12 18:39:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1609. [2024-09-12 18:39:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2890216579536968) internal successors, (1726), 1366 states have internal predecessors, (1726), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2141 transitions. [2024-09-12 18:39:51,897 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2141 transitions. Word has length 119 [2024-09-12 18:39:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:51,897 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2141 transitions. [2024-09-12 18:39:51,897 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:51,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2141 transitions. [2024-09-12 18:39:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:39:51,898 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:51,898 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:51,898 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-09-12 18:39:51,898 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:51,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash -156438209, now seen corresponding path program 1 times [2024-09-12 18:39:51,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068777] [2024-09-12 18:39:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340847754] [2024-09-12 18:39:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:51,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:51,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:51,914 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:51,915 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-09-12 18:39:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:51,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:39:51,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:52,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:52,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:52,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068777] [2024-09-12 18:39:52,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:52,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340847754] [2024-09-12 18:39:52,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340847754] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:52,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:52,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 18:39:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265148658] [2024-09-12 18:39:52,582 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:52,582 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:39:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:52,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:39:52,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:52,583 INFO L87 Difference]: Start difference. First operand 1609 states and 2141 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:53,654 INFO L93 Difference]: Finished difference Result 1627 states and 2148 transitions. [2024-09-12 18:39:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 18:39:53,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:39:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:53,660 INFO L225 Difference]: With dead ends: 1627 [2024-09-12 18:39:53,660 INFO L226 Difference]: Without dead ends: 1624 [2024-09-12 18:39:53,660 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:39:53,661 INFO L434 NwaCegarLoop]: 108 mSDtfsCounter, 210 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:53,661 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 375 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-09-12 18:39:54,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1609. [2024-09-12 18:39:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2837938760268857) internal successors, (1719), 1366 states have internal predecessors, (1719), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:54,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2134 transitions. [2024-09-12 18:39:54,216 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2134 transitions. Word has length 120 [2024-09-12 18:39:54,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:54,217 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2134 transitions. [2024-09-12 18:39:54,217 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 9 states have internal predecessors, (68), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:54,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2134 transitions. [2024-09-12 18:39:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-09-12 18:39:54,218 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:54,218 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:54,230 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:54,418 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:54,418 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:54,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:54,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1314853987, now seen corresponding path program 2 times [2024-09-12 18:39:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:54,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968864071] [2024-09-12 18:39:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:54,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:54,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537403893] [2024-09-12 18:39:54,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:39:54,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:54,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:54,436 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:54,439 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-09-12 18:39:54,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:39:54,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:39:54,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:39:54,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:39:54,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:39:55,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968864071] [2024-09-12 18:39:55,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:39:55,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537403893] [2024-09-12 18:39:55,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537403893] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:55,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:55,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:39:55,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102584448] [2024-09-12 18:39:55,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:39:55,116 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:39:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:55,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:39:55,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:39:55,117 INFO L87 Difference]: Start difference. First operand 1609 states and 2134 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:56,088 INFO L93 Difference]: Finished difference Result 1933 states and 2618 transitions. [2024-09-12 18:39:56,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:39:56,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 120 [2024-09-12 18:39:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:56,092 INFO L225 Difference]: With dead ends: 1933 [2024-09-12 18:39:56,092 INFO L226 Difference]: Without dead ends: 1929 [2024-09-12 18:39:56,093 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:39:56,093 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 212 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:56,093 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 582 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:39:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-09-12 18:39:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1609. [2024-09-12 18:39:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1339 states have (on average 1.2636295743091859) internal successors, (1692), 1366 states have internal predecessors, (1692), 209 states have call successors, (209), 42 states have call predecessors, (209), 41 states have return successors, (206), 200 states have call predecessors, (206), 206 states have call successors, (206) [2024-09-12 18:39:56,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2107 transitions. [2024-09-12 18:39:56,560 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2107 transitions. Word has length 120 [2024-09-12 18:39:56,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:56,561 INFO L474 AbstractCegarLoop]: Abstraction has 1609 states and 2107 transitions. [2024-09-12 18:39:56,561 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:39:56,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2107 transitions. [2024-09-12 18:39:56,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-09-12 18:39:56,561 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:56,562 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:56,573 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-09-12 18:39:56,762 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 18:39:56,762 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:56,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash -628704174, now seen corresponding path program 1 times [2024-09-12 18:39:56,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401972204] [2024-09-12 18:39:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:39:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:39:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:39:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:39:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:39:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:39:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:39:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 18:39:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:39:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 18:39:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-09-12 18:39:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:39:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-09-12 18:39:56,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:39:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401972204] [2024-09-12 18:39:56,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401972204] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:39:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876776496] [2024-09-12 18:39:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:56,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:56,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:56,968 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:56,970 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-09-12 18:39:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:57,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:39:57,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 18:39:57,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:39:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876776496] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:39:57,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:39:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2024-09-12 18:39:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127603517] [2024-09-12 18:39:57,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:39:57,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:39:57,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:39:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:39:57,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:39:57,098 INFO L87 Difference]: Start difference. First operand 1609 states and 2107 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:39:57,889 INFO L93 Difference]: Finished difference Result 2403 states and 3217 transitions. [2024-09-12 18:39:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:39:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 123 [2024-09-12 18:39:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:39:57,893 INFO L225 Difference]: With dead ends: 2403 [2024-09-12 18:39:57,894 INFO L226 Difference]: Without dead ends: 1251 [2024-09-12 18:39:57,897 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:39:57,897 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 59 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:39:57,898 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 237 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:39:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-09-12 18:39:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1186. [2024-09-12 18:39:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 985 states have (on average 1.2730964467005077) internal successors, (1254), 1010 states have internal predecessors, (1254), 148 states have call successors, (148), 34 states have call predecessors, (148), 33 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:39:58,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1547 transitions. [2024-09-12 18:39:58,273 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1547 transitions. Word has length 123 [2024-09-12 18:39:58,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:39:58,273 INFO L474 AbstractCegarLoop]: Abstraction has 1186 states and 1547 transitions. [2024-09-12 18:39:58,273 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-09-12 18:39:58,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1547 transitions. [2024-09-12 18:39:58,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 18:39:58,274 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:39:58,274 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:39:58,285 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 18:39:58,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-09-12 18:39:58,475 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:39:58,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:39:58,475 INFO L85 PathProgramCache]: Analyzing trace with hash 144149743, now seen corresponding path program 1 times [2024-09-12 18:39:58,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:39:58,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971072388] [2024-09-12 18:39:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:39:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:39:58,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113355959] [2024-09-12 18:39:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:39:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:39:58,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:39:58,488 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:39:58,490 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-09-12 18:39:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:39:58,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:39:58,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:39:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 31 proven. 44 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 18:39:59,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:03,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:03,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971072388] [2024-09-12 18:40:03,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:03,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113355959] [2024-09-12 18:40:03,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113355959] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:03,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:03,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86864110] [2024-09-12 18:40:03,423 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:03,424 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:03,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2024-09-12 18:40:03,425 INFO L87 Difference]: Start difference. First operand 1186 states and 1547 transitions. Second operand has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:04,412 INFO L93 Difference]: Finished difference Result 1213 states and 1565 transitions. [2024-09-12 18:40:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:40:04,412 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 124 [2024-09-12 18:40:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:04,415 INFO L225 Difference]: With dead ends: 1213 [2024-09-12 18:40:04,415 INFO L226 Difference]: Without dead ends: 1206 [2024-09-12 18:40:04,416 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2024-09-12 18:40:04,416 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:04,416 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 642 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:40:04,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-09-12 18:40:04,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1189. [2024-09-12 18:40:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 987 states have (on average 1.2695035460992907) internal successors, (1253), 1011 states have internal predecessors, (1253), 147 states have call successors, (147), 36 states have call predecessors, (147), 35 states have return successors, (145), 141 states have call predecessors, (145), 145 states have call successors, (145) [2024-09-12 18:40:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1545 transitions. [2024-09-12 18:40:04,779 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1545 transitions. Word has length 124 [2024-09-12 18:40:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:04,780 INFO L474 AbstractCegarLoop]: Abstraction has 1189 states and 1545 transitions. [2024-09-12 18:40:04,780 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.933333333333334) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:40:04,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:04,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1545 transitions. [2024-09-12 18:40:04,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 18:40:04,780 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:04,781 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:04,793 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:04,981 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 18:40:04,981 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:04,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:04,982 INFO L85 PathProgramCache]: Analyzing trace with hash -375279443, now seen corresponding path program 1 times [2024-09-12 18:40:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894029542] [2024-09-12 18:40:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:04,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:40:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:40:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:40:05,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:05,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894029542] [2024-09-12 18:40:05,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894029542] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:05,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989144111] [2024-09-12 18:40:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:05,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:05,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:05,201 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:05,203 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-09-12 18:40:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:05,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:40:05,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-09-12 18:40:05,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 18:40:05,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989144111] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:05,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:05,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 25 [2024-09-12 18:40:05,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603578628] [2024-09-12 18:40:05,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:05,665 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 18:40:05,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:05,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 18:40:05,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=507, Unknown=0, NotChecked=0, Total=650 [2024-09-12 18:40:05,666 INFO L87 Difference]: Start difference. First operand 1189 states and 1545 transitions. Second operand has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) [2024-09-12 18:40:06,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:06,877 INFO L93 Difference]: Finished difference Result 1551 states and 1908 transitions. [2024-09-12 18:40:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 18:40:06,878 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) Word has length 149 [2024-09-12 18:40:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:06,882 INFO L225 Difference]: With dead ends: 1551 [2024-09-12 18:40:06,883 INFO L226 Difference]: Without dead ends: 1535 [2024-09-12 18:40:06,884 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=578, Invalid=2392, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:40:06,884 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 257 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:06,884 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 886 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:40:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-09-12 18:40:07,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1443. [2024-09-12 18:40:07,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1198 states have (on average 1.2445742904841401) internal successors, (1491), 1224 states have internal predecessors, (1491), 161 states have call successors, (161), 65 states have call predecessors, (161), 64 states have return successors, (158), 153 states have call predecessors, (158), 158 states have call successors, (158) [2024-09-12 18:40:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1810 transitions. [2024-09-12 18:40:07,304 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1810 transitions. Word has length 149 [2024-09-12 18:40:07,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:07,304 INFO L474 AbstractCegarLoop]: Abstraction has 1443 states and 1810 transitions. [2024-09-12 18:40:07,304 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.2) internal successors, (180), 25 states have internal predecessors, (180), 12 states have call successors, (47), 9 states have call predecessors, (47), 8 states have return successors, (45), 11 states have call predecessors, (45), 12 states have call successors, (45) [2024-09-12 18:40:07,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:07,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1810 transitions. [2024-09-12 18:40:07,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 18:40:07,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:07,305 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:07,317 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-09-12 18:40:07,506 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-09-12 18:40:07,506 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:07,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash 358587858, now seen corresponding path program 2 times [2024-09-12 18:40:07,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:07,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717235632] [2024-09-12 18:40:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971569428] [2024-09-12 18:40:07,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:07,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:07,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:07,534 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:07,536 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-09-12 18:40:07,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:07,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:07,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:40:07,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:08,108 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717235632] [2024-09-12 18:40:08,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971569428] [2024-09-12 18:40:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971569428] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:08,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911522849] [2024-09-12 18:40:08,215 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:08,215 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:08,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:08,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:08,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:08,216 INFO L87 Difference]: Start difference. First operand 1443 states and 1810 transitions. Second operand has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:10,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:10,243 INFO L93 Difference]: Finished difference Result 2616 states and 3476 transitions. [2024-09-12 18:40:10,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 18:40:10,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 158 [2024-09-12 18:40:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:10,248 INFO L225 Difference]: With dead ends: 2616 [2024-09-12 18:40:10,248 INFO L226 Difference]: Without dead ends: 2613 [2024-09-12 18:40:10,249 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:10,249 INFO L434 NwaCegarLoop]: 187 mSDtfsCounter, 351 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:10,249 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 903 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 18:40:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2024-09-12 18:40:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1418. [2024-09-12 18:40:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1173 states have (on average 1.2429667519181586) internal successors, (1458), 1199 states have internal predecessors, (1458), 161 states have call successors, (161), 65 states have call predecessors, (161), 64 states have return successors, (158), 153 states have call predecessors, (158), 158 states have call successors, (158) [2024-09-12 18:40:10,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1777 transitions. [2024-09-12 18:40:10,749 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1777 transitions. Word has length 158 [2024-09-12 18:40:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:10,750 INFO L474 AbstractCegarLoop]: Abstraction has 1418 states and 1777 transitions. [2024-09-12 18:40:10,750 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.818181818181818) internal successors, (86), 12 states have internal predecessors, (86), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:10,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1777 transitions. [2024-09-12 18:40:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-09-12 18:40:10,752 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:10,752 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:10,768 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 18:40:10,952 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 18:40:10,953 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:10,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1768678222, now seen corresponding path program 2 times [2024-09-12 18:40:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:10,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627924977] [2024-09-12 18:40:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:10,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683824060] [2024-09-12 18:40:10,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:10,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:10,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:10,975 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:10,977 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-09-12 18:40:11,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:11,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:11,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 18:40:11,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:11,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:12,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627924977] [2024-09-12 18:40:12,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683824060] [2024-09-12 18:40:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683824060] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:12,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:12,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409447615] [2024-09-12 18:40:12,139 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:12,139 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:12,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:12,140 INFO L87 Difference]: Start difference. First operand 1418 states and 1777 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:13,235 INFO L93 Difference]: Finished difference Result 1500 states and 1873 transitions. [2024-09-12 18:40:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 18:40:13,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 159 [2024-09-12 18:40:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:13,239 INFO L225 Difference]: With dead ends: 1500 [2024-09-12 18:40:13,239 INFO L226 Difference]: Without dead ends: 1497 [2024-09-12 18:40:13,240 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:40:13,240 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 85 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:13,240 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 601 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:40:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-09-12 18:40:13,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1462. [2024-09-12 18:40:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.2421487603305785) internal successors, (1503), 1235 states have internal predecessors, (1503), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:40:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1836 transitions. [2024-09-12 18:40:13,700 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1836 transitions. Word has length 159 [2024-09-12 18:40:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:13,701 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1836 transitions. [2024-09-12 18:40:13,701 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:13,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:13,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1836 transitions. [2024-09-12 18:40:13,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:40:13,702 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:13,702 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:13,716 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-09-12 18:40:13,906 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 18:40:13,907 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:13,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:13,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1107280116, now seen corresponding path program 2 times [2024-09-12 18:40:13,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:13,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077218199] [2024-09-12 18:40:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:13,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:13,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367839924] [2024-09-12 18:40:13,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:13,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:13,940 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:13,941 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-09-12 18:40:14,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:14,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:14,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:14,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:14,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:16,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:16,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077218199] [2024-09-12 18:40:16,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:16,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367839924] [2024-09-12 18:40:16,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367839924] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:16,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:16,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040226213] [2024-09-12 18:40:16,239 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:16,240 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:16,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:16,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:16,240 INFO L87 Difference]: Start difference. First operand 1462 states and 1836 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:17,242 INFO L93 Difference]: Finished difference Result 1487 states and 1850 transitions. [2024-09-12 18:40:17,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 18:40:17,242 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 161 [2024-09-12 18:40:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:17,246 INFO L225 Difference]: With dead ends: 1487 [2024-09-12 18:40:17,246 INFO L226 Difference]: Without dead ends: 1484 [2024-09-12 18:40:17,247 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:17,247 INFO L434 NwaCegarLoop]: 121 mSDtfsCounter, 90 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:17,247 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 505 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2024-09-12 18:40:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1462. [2024-09-12 18:40:17,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.2363636363636363) internal successors, (1496), 1235 states have internal predecessors, (1496), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:40:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1829 transitions. [2024-09-12 18:40:17,804 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1829 transitions. Word has length 161 [2024-09-12 18:40:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:17,805 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1829 transitions. [2024-09-12 18:40:17,805 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-09-12 18:40:17,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1829 transitions. [2024-09-12 18:40:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-09-12 18:40:17,806 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:17,806 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:17,823 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 18:40:18,008 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 18:40:18,008 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:18,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1716394984, now seen corresponding path program 3 times [2024-09-12 18:40:18,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:18,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138045261] [2024-09-12 18:40:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:18,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311577882] [2024-09-12 18:40:18,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:18,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:18,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:18,035 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 18:40:18,036 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 18:40:18,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:40:18,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:18,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:40:18,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 45 proven. 26 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-09-12 18:40:18,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138045261] [2024-09-12 18:40:22,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311577882] [2024-09-12 18:40:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311577882] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:22,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:22,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:22,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885031289] [2024-09-12 18:40:22,875 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:22,875 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:22,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:22,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:22,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2024-09-12 18:40:22,876 INFO L87 Difference]: Start difference. First operand 1462 states and 1829 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:24,484 INFO L93 Difference]: Finished difference Result 1870 states and 2401 transitions. [2024-09-12 18:40:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:40:24,485 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 161 [2024-09-12 18:40:24,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:24,489 INFO L225 Difference]: With dead ends: 1870 [2024-09-12 18:40:24,489 INFO L226 Difference]: Without dead ends: 1866 [2024-09-12 18:40:24,489 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=96, Invalid=323, Unknown=1, NotChecked=0, Total=420 [2024-09-12 18:40:24,490 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 488 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:24,490 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 621 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:40:24,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-09-12 18:40:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1462. [2024-09-12 18:40:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1210 states have (on average 1.228099173553719) internal successors, (1486), 1235 states have internal predecessors, (1486), 168 states have call successors, (168), 65 states have call predecessors, (168), 64 states have return successors, (165), 161 states have call predecessors, (165), 165 states have call successors, (165) [2024-09-12 18:40:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1819 transitions. [2024-09-12 18:40:25,001 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1819 transitions. Word has length 161 [2024-09-12 18:40:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:25,001 INFO L474 AbstractCegarLoop]: Abstraction has 1462 states and 1819 transitions. [2024-09-12 18:40:25,001 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:25,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1819 transitions. [2024-09-12 18:40:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-09-12 18:40:25,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:25,003 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:25,015 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 18:40:25,203 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:25,203 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:25,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:25,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1415566461, now seen corresponding path program 1 times [2024-09-12 18:40:25,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:25,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421765548] [2024-09-12 18:40:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:25,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:40:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:40:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:40:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:25,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:25,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421765548] [2024-09-12 18:40:25,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421765548] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:25,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108337474] [2024-09-12 18:40:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:25,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:25,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:25,462 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:25,463 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-09-12 18:40:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:25,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:40:25,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 381 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-09-12 18:40:25,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-09-12 18:40:25,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108337474] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:25,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:25,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 30 [2024-09-12 18:40:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164027313] [2024-09-12 18:40:25,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:25,963 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 18:40:25,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:25,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 18:40:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=681, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:40:25,964 INFO L87 Difference]: Start difference. First operand 1462 states and 1819 transitions. Second operand has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) [2024-09-12 18:40:27,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:27,334 INFO L93 Difference]: Finished difference Result 2195 states and 2735 transitions. [2024-09-12 18:40:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:40:27,335 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) Word has length 164 [2024-09-12 18:40:27,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:27,339 INFO L225 Difference]: With dead ends: 2195 [2024-09-12 18:40:27,339 INFO L226 Difference]: Without dead ends: 1733 [2024-09-12 18:40:27,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=790, Invalid=3370, Unknown=0, NotChecked=0, Total=4160 [2024-09-12 18:40:27,341 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 273 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:27,342 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 977 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:40:27,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2024-09-12 18:40:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1651. [2024-09-12 18:40:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1363 states have (on average 1.2164343360234777) internal successors, (1658), 1393 states have internal predecessors, (1658), 187 states have call successors, (187), 82 states have call predecessors, (187), 81 states have return successors, (182), 175 states have call predecessors, (182), 182 states have call successors, (182) [2024-09-12 18:40:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2027 transitions. [2024-09-12 18:40:28,018 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2027 transitions. Word has length 164 [2024-09-12 18:40:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:28,018 INFO L474 AbstractCegarLoop]: Abstraction has 1651 states and 2027 transitions. [2024-09-12 18:40:28,018 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.7) internal successors, (201), 29 states have internal predecessors, (201), 14 states have call successors, (50), 10 states have call predecessors, (50), 9 states have return successors, (48), 13 states have call predecessors, (48), 14 states have call successors, (48) [2024-09-12 18:40:28,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2027 transitions. [2024-09-12 18:40:28,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-09-12 18:40:28,019 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:28,019 INFO L216 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:28,031 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 18:40:28,219 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:28,220 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:28,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash -907970012, now seen corresponding path program 2 times [2024-09-12 18:40:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:28,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010696306] [2024-09-12 18:40:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:28,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:28,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506343003] [2024-09-12 18:40:28,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:28,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:28,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:28,239 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:28,240 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-09-12 18:40:28,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:28,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:28,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 18:40:28,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:29,092 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 39 proven. 97 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-09-12 18:40:29,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:30,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:30,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010696306] [2024-09-12 18:40:30,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:30,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506343003] [2024-09-12 18:40:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506343003] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:30,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:30,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:40:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549984503] [2024-09-12 18:40:30,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:30,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 18:40:30,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:30,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 18:40:30,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=631, Unknown=1, NotChecked=0, Total=756 [2024-09-12 18:40:30,445 INFO L87 Difference]: Start difference. First operand 1651 states and 2027 transitions. Second operand has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:31,886 INFO L93 Difference]: Finished difference Result 1673 states and 2042 transitions. [2024-09-12 18:40:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:40:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 165 [2024-09-12 18:40:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:31,891 INFO L225 Difference]: With dead ends: 1673 [2024-09-12 18:40:31,891 INFO L226 Difference]: Without dead ends: 1666 [2024-09-12 18:40:31,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=131, Invalid=680, Unknown=1, NotChecked=0, Total=812 [2024-09-12 18:40:31,892 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 74 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:31,892 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 875 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-09-12 18:40:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1654. [2024-09-12 18:40:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1365 states have (on average 1.2124542124542124) internal successors, (1655), 1394 states have internal predecessors, (1655), 186 states have call successors, (186), 84 states have call predecessors, (186), 83 states have return successors, (182), 175 states have call predecessors, (182), 182 states have call successors, (182) [2024-09-12 18:40:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2023 transitions. [2024-09-12 18:40:32,446 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2023 transitions. Word has length 165 [2024-09-12 18:40:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:32,447 INFO L474 AbstractCegarLoop]: Abstraction has 1654 states and 2023 transitions. [2024-09-12 18:40:32,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.588235294117647) internal successors, (95), 16 states have internal predecessors, (95), 8 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2024-09-12 18:40:32,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2023 transitions. [2024-09-12 18:40:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 18:40:32,448 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:32,448 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:32,460 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 18:40:32,648 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,648 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:32,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1214385629, now seen corresponding path program 3 times [2024-09-12 18:40:32,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:32,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855062521] [2024-09-12 18:40:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:32,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558302633] [2024-09-12 18:40:32,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:32,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:32,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:32,664 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:32,666 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-09-12 18:40:32,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:32,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:32,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 18:40:32,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 99 proven. 76 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-09-12 18:40:33,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:34,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855062521] [2024-09-12 18:40:34,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:34,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558302633] [2024-09-12 18:40:34,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558302633] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:34,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:40:34,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000741811] [2024-09-12 18:40:34,797 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:34,798 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 18:40:34,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:34,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 18:40:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:40:34,798 INFO L87 Difference]: Start difference. First operand 1654 states and 2023 transitions. Second operand has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:39,314 INFO L93 Difference]: Finished difference Result 1782 states and 2204 transitions. [2024-09-12 18:40:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 18:40:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 171 [2024-09-12 18:40:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:39,320 INFO L225 Difference]: With dead ends: 1782 [2024-09-12 18:40:39,320 INFO L226 Difference]: Without dead ends: 1776 [2024-09-12 18:40:39,321 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:40:39,321 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 381 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:39,321 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 430 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-09-12 18:40:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2024-09-12 18:40:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1713. [2024-09-12 18:40:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1419 states have (on average 1.1797040169133193) internal successors, (1674), 1445 states have internal predecessors, (1674), 192 states have call successors, (192), 84 states have call predecessors, (192), 83 states have return successors, (188), 183 states have call predecessors, (188), 188 states have call successors, (188) [2024-09-12 18:40:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2054 transitions. [2024-09-12 18:40:40,117 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2054 transitions. Word has length 171 [2024-09-12 18:40:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:40,118 INFO L474 AbstractCegarLoop]: Abstraction has 1713 states and 2054 transitions. [2024-09-12 18:40:40,118 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.083333333333333) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:40,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:40,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2054 transitions. [2024-09-12 18:40:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 18:40:40,119 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:40,119 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:40,126 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 18:40:40,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 18:40:40,320 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:40,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:40,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1206517285, now seen corresponding path program 3 times [2024-09-12 18:40:40,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:40,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081349494] [2024-09-12 18:40:40,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:40,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:40,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874265712] [2024-09-12 18:40:40,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:40,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:40,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:40,342 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:40,348 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-09-12 18:40:40,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:40,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:40,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:40:40,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 68 proven. 79 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-09-12 18:40:41,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:41,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:41,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081349494] [2024-09-12 18:40:41,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:41,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874265712] [2024-09-12 18:40:41,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874265712] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:41,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:41,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-09-12 18:40:41,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446108215] [2024-09-12 18:40:41,771 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:41,771 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:40:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:41,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:40:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:40:41,772 INFO L87 Difference]: Start difference. First operand 1713 states and 2054 transitions. Second operand has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:43,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:43,573 INFO L93 Difference]: Finished difference Result 1758 states and 2108 transitions. [2024-09-12 18:40:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 18:40:43,574 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 173 [2024-09-12 18:40:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:43,578 INFO L225 Difference]: With dead ends: 1758 [2024-09-12 18:40:43,578 INFO L226 Difference]: Without dead ends: 1755 [2024-09-12 18:40:43,579 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=336, Invalid=1304, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 18:40:43,579 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 253 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:43,579 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 507 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:40:43,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2024-09-12 18:40:44,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1681. [2024-09-12 18:40:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1391 states have (on average 1.1696621135873473) internal successors, (1627), 1416 states have internal predecessors, (1627), 189 states have call successors, (189), 84 states have call predecessors, (189), 83 states have return successors, (185), 180 states have call predecessors, (185), 185 states have call successors, (185) [2024-09-12 18:40:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2001 transitions. [2024-09-12 18:40:44,214 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2001 transitions. Word has length 173 [2024-09-12 18:40:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:44,214 INFO L474 AbstractCegarLoop]: Abstraction has 1681 states and 2001 transitions. [2024-09-12 18:40:44,214 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.142857142857143) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2024-09-12 18:40:44,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:44,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2001 transitions. [2024-09-12 18:40:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-09-12 18:40:44,216 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:44,216 INFO L216 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:44,223 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:44,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:44,417 INFO L399 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:44,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:44,417 INFO L85 PathProgramCache]: Analyzing trace with hash 689419989, now seen corresponding path program 3 times [2024-09-12 18:40:44,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:44,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276695582] [2024-09-12 18:40:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:44,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:44,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507152976] [2024-09-12 18:40:44,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:44,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:44,436 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:44,438 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-09-12 18:40:44,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:40:44,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:44,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-12 18:40:44,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 94 proven. 82 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-09-12 18:40:44,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:44,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:44,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276695582] [2024-09-12 18:40:44,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:44,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507152976] [2024-09-12 18:40:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507152976] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:44,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:44,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 18:40:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801407401] [2024-09-12 18:40:44,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:44,942 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:44,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:44,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:44,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:40:44,943 INFO L87 Difference]: Start difference. First operand 1681 states and 2001 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:40:46,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:46,437 INFO L93 Difference]: Finished difference Result 1727 states and 2053 transitions. [2024-09-12 18:40:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 18:40:46,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) Word has length 177 [2024-09-12 18:40:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:46,443 INFO L225 Difference]: With dead ends: 1727 [2024-09-12 18:40:46,443 INFO L226 Difference]: Without dead ends: 1641 [2024-09-12 18:40:46,444 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:40:46,444 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:46,444 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 338 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:40:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2024-09-12 18:40:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1613. [2024-09-12 18:40:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1333 states have (on average 1.1665416354088523) internal successors, (1555), 1355 states have internal predecessors, (1555), 181 states have call successors, (181), 83 states have call predecessors, (181), 81 states have return successors, (179), 174 states have call predecessors, (179), 179 states have call successors, (179) [2024-09-12 18:40:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 1915 transitions. [2024-09-12 18:40:47,214 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 1915 transitions. Word has length 177 [2024-09-12 18:40:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:47,215 INFO L474 AbstractCegarLoop]: Abstraction has 1613 states and 1915 transitions. [2024-09-12 18:40:47,215 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 11 states have internal predecessors, (86), 5 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 5 states have call successors, (14) [2024-09-12 18:40:47,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 1915 transitions. [2024-09-12 18:40:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-09-12 18:40:47,216 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:47,216 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:47,233 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-09-12 18:40:47,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:47,417 INFO L399 AbstractCegarLoop]: === Iteration 57 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:47,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash 953023943, now seen corresponding path program 3 times [2024-09-12 18:40:47,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:47,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190166072] [2024-09-12 18:40:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:40:47,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997798614] [2024-09-12 18:40:47,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:40:47,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:47,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:47,433 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:47,435 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-09-12 18:40:47,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:40:47,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:47,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:40:47,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:48,119 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 51 proven. 8 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-09-12 18:40:48,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:55,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190166072] [2024-09-12 18:40:55,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:40:55,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997798614] [2024-09-12 18:40:55,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997798614] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:55,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:40:55,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:40:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955497357] [2024-09-12 18:40:55,301 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:55,301 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:40:55,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:55,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:40:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2024-09-12 18:40:55,302 INFO L87 Difference]: Start difference. First operand 1613 states and 1915 transitions. Second operand has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:56,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:40:56,685 INFO L93 Difference]: Finished difference Result 1790 states and 2146 transitions. [2024-09-12 18:40:56,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:40:56,685 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 199 [2024-09-12 18:40:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:40:56,689 INFO L225 Difference]: With dead ends: 1790 [2024-09-12 18:40:56,689 INFO L226 Difference]: Without dead ends: 1786 [2024-09-12 18:40:56,690 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=122, Invalid=429, Unknown=1, NotChecked=0, Total=552 [2024-09-12 18:40:56,690 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 400 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:40:56,690 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 345 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:40:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-09-12 18:40:57,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1741. [2024-09-12 18:40:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1440 states have (on average 1.167361111111111) internal successors, (1681), 1462 states have internal predecessors, (1681), 202 states have call successors, (202), 83 states have call predecessors, (202), 81 states have return successors, (200), 195 states have call predecessors, (200), 200 states have call successors, (200) [2024-09-12 18:40:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2083 transitions. [2024-09-12 18:40:57,392 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2083 transitions. Word has length 199 [2024-09-12 18:40:57,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:40:57,392 INFO L474 AbstractCegarLoop]: Abstraction has 1741 states and 2083 transitions. [2024-09-12 18:40:57,392 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 18:40:57,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2083 transitions. [2024-09-12 18:40:57,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-09-12 18:40:57,394 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:40:57,394 INFO L216 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:40:57,411 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-09-12 18:40:57,595 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-09-12 18:40:57,595 INFO L399 AbstractCegarLoop]: === Iteration 58 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:40:57,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:40:57,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1671322848, now seen corresponding path program 2 times [2024-09-12 18:40:57,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:40:57,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250653834] [2024-09-12 18:40:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:40:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:40:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:40:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:40:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,726 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:40:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:40:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:40:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:40:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:40:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,734 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:40:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:40:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:40:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:40:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:40:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,743 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:40:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:40:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:40:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:40:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:40:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,752 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:40:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:40:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:40:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:40:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:40:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:40:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:40:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:57,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:40:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250653834] [2024-09-12 18:40:57,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250653834] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:40:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379787673] [2024-09-12 18:40:57,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:40:57,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:40:57,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:40:57,765 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:40:57,766 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-09-12 18:40:57,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:40:57,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:40:57,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:40:57,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:40:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:57,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:40:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-09-12 18:40:58,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379787673] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:40:58,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:40:58,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-09-12 18:40:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301201131] [2024-09-12 18:40:58,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:40:58,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:40:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:40:58,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:40:58,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:40:58,211 INFO L87 Difference]: Start difference. First operand 1741 states and 2083 transitions. Second operand has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:41:00,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:00,957 INFO L93 Difference]: Finished difference Result 4052 states and 5300 transitions. [2024-09-12 18:41:00,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 18:41:00,958 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 222 [2024-09-12 18:41:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:00,966 INFO L225 Difference]: With dead ends: 4052 [2024-09-12 18:41:00,966 INFO L226 Difference]: Without dead ends: 4051 [2024-09-12 18:41:00,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=193, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:41:00,968 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 689 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:00,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 794 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 18:41:00,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2024-09-12 18:41:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 2876. [2024-09-12 18:41:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2392 states have (on average 1.2286789297658862) internal successors, (2939), 2413 states have internal predecessors, (2939), 385 states have call successors, (385), 83 states have call predecessors, (385), 81 states have return successors, (383), 379 states have call predecessors, (383), 383 states have call successors, (383) [2024-09-12 18:41:02,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3707 transitions. [2024-09-12 18:41:02,270 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3707 transitions. Word has length 222 [2024-09-12 18:41:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:02,271 INFO L474 AbstractCegarLoop]: Abstraction has 2876 states and 3707 transitions. [2024-09-12 18:41:02,271 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.142857142857142) internal successors, (212), 14 states have internal predecessors, (212), 13 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-09-12 18:41:02,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3707 transitions. [2024-09-12 18:41:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:41:02,273 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:02,273 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:02,290 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:02,473 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-09-12 18:41:02,474 INFO L399 AbstractCegarLoop]: === Iteration 59 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:02,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash 802448630, now seen corresponding path program 1 times [2024-09-12 18:41:02,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:02,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005260062] [2024-09-12 18:41:02,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:02,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 18:41:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,654 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-09-12 18:41:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,658 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-09-12 18:41:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,662 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 18:41:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,664 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:41:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:41:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,667 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:41:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,674 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,676 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:41:02,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005260062] [2024-09-12 18:41:02,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005260062] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:02,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067029834] [2024-09-12 18:41:02,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:02,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:02,687 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 18:41:02,688 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 18:41:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:02,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:41:02,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 579 proven. 48 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-09-12 18:41:02,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:03,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 131 proven. 48 refuted. 0 times theorem prover too weak. 949 trivial. 0 not checked. [2024-09-12 18:41:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067029834] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:03,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:03,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2024-09-12 18:41:03,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648835654] [2024-09-12 18:41:03,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:03,051 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 18:41:03,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 18:41:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:41:03,052 INFO L87 Difference]: Start difference. First operand 2876 states and 3707 transitions. Second operand has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:41:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:05,451 INFO L93 Difference]: Finished difference Result 4561 states and 6010 transitions. [2024-09-12 18:41:05,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 18:41:05,451 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) Word has length 240 [2024-09-12 18:41:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:05,459 INFO L225 Difference]: With dead ends: 4561 [2024-09-12 18:41:05,459 INFO L226 Difference]: Without dead ends: 2790 [2024-09-12 18:41:05,464 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 520 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:41:05,465 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 369 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:05,465 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 744 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:41:05,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-09-12 18:41:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2664. [2024-09-12 18:41:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2222 states have (on average 1.2403240324032403) internal successors, (2756), 2242 states have internal predecessors, (2756), 363 states have call successors, (363), 63 states have call predecessors, (363), 61 states have return successors, (361), 358 states have call predecessors, (361), 361 states have call successors, (361) [2024-09-12 18:41:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3480 transitions. [2024-09-12 18:41:06,705 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3480 transitions. Word has length 240 [2024-09-12 18:41:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:06,705 INFO L474 AbstractCegarLoop]: Abstraction has 2664 states and 3480 transitions. [2024-09-12 18:41:06,705 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.6875) internal successors, (235), 15 states have internal predecessors, (235), 13 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 13 states have call predecessors, (46), 13 states have call successors, (46) [2024-09-12 18:41:06,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3480 transitions. [2024-09-12 18:41:06,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-09-12 18:41:06,707 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:06,707 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:06,722 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 18:41:06,907 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,46 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:06,907 INFO L399 AbstractCegarLoop]: === Iteration 60 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:06,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1577265846, now seen corresponding path program 2 times [2024-09-12 18:41:06,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749741723] [2024-09-12 18:41:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:06,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:41:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:41:07,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:07,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749741723] [2024-09-12 18:41:07,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749741723] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:07,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271741742] [2024-09-12 18:41:07,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:41:07,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:07,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:07,123 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 18:41:07,130 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 18:41:07,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:41:07,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:07,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:41:07,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:41:07,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-09-12 18:41:07,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271741742] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:07,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:07,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 22 [2024-09-12 18:41:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924682817] [2024-09-12 18:41:07,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:07,836 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 18:41:07,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:07,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 18:41:07,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:41:07,837 INFO L87 Difference]: Start difference. First operand 2664 states and 3480 transitions. Second operand has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:41:11,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:11,935 INFO L93 Difference]: Finished difference Result 6263 states and 8492 transitions. [2024-09-12 18:41:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:41:11,935 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) Word has length 240 [2024-09-12 18:41:11,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:11,947 INFO L225 Difference]: With dead ends: 6263 [2024-09-12 18:41:11,947 INFO L226 Difference]: Without dead ends: 6225 [2024-09-12 18:41:11,948 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=604, Invalid=1036, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 18:41:11,949 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 1414 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:11,949 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 716 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 18:41:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6225 states. [2024-09-12 18:41:14,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6225 to 3785. [2024-09-12 18:41:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 3190 states have (on average 1.2413793103448276) internal successors, (3960), 3212 states have internal predecessors, (3960), 516 states have call successors, (516), 63 states have call predecessors, (516), 61 states have return successors, (514), 509 states have call predecessors, (514), 514 states have call successors, (514) [2024-09-12 18:41:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 4990 transitions. [2024-09-12 18:41:14,034 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 4990 transitions. Word has length 240 [2024-09-12 18:41:14,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:14,035 INFO L474 AbstractCegarLoop]: Abstraction has 3785 states and 4990 transitions. [2024-09-12 18:41:14,035 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 16.318181818181817) internal successors, (359), 22 states have internal predecessors, (359), 21 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (66), 21 states have call predecessors, (66), 21 states have call successors, (66) [2024-09-12 18:41:14,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:14,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 4990 transitions. [2024-09-12 18:41:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 18:41:14,037 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:14,037 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:14,052 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 18:41:14,237 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,47 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:14,238 INFO L399 AbstractCegarLoop]: === Iteration 61 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:14,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash -287760927, now seen corresponding path program 4 times [2024-09-12 18:41:14,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:14,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202992422] [2024-09-12 18:41:14,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:14,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:14,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006421953] [2024-09-12 18:41:14,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:41:14,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:14,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:14,259 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 18:41:14,260 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 18:41:14,348 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:41:14,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:14,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:41:14,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 168 proven. 52 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:41:15,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:15,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202992422] [2024-09-12 18:41:15,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006421953] [2024-09-12 18:41:15,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006421953] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:15,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:15,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:41:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634637344] [2024-09-12 18:41:15,162 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:15,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:41:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:41:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:15,163 INFO L87 Difference]: Start difference. First operand 3785 states and 4990 transitions. Second operand has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:41:18,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:18,923 INFO L93 Difference]: Finished difference Result 5047 states and 6732 transitions. [2024-09-12 18:41:18,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:41:18,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) Word has length 252 [2024-09-12 18:41:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:18,934 INFO L225 Difference]: With dead ends: 5047 [2024-09-12 18:41:18,934 INFO L226 Difference]: Without dead ends: 5027 [2024-09-12 18:41:18,935 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2024-09-12 18:41:18,935 INFO L434 NwaCegarLoop]: 221 mSDtfsCounter, 345 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:18,935 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 683 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 18:41:18,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2024-09-12 18:41:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 3720. [2024-09-12 18:41:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3720 states, 3135 states have (on average 1.2430622009569379) internal successors, (3897), 3157 states have internal predecessors, (3897), 506 states have call successors, (506), 63 states have call predecessors, (506), 61 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) [2024-09-12 18:41:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 4907 transitions. [2024-09-12 18:41:21,124 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 4907 transitions. Word has length 252 [2024-09-12 18:41:21,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:21,124 INFO L474 AbstractCegarLoop]: Abstraction has 3720 states and 4907 transitions. [2024-09-12 18:41:21,124 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 10 states have call predecessors, (25), 10 states have call successors, (25) [2024-09-12 18:41:21,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 4907 transitions. [2024-09-12 18:41:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-09-12 18:41:21,126 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:21,126 INFO L216 NwaCegarLoop]: trace histogram [23, 23, 23, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:21,142 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:21,330 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,48 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:21,331 INFO L399 AbstractCegarLoop]: === Iteration 62 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:21,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:21,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2005929131, now seen corresponding path program 1 times [2024-09-12 18:41:21,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:21,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214317405] [2024-09-12 18:41:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,736 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,738 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,740 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,742 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,744 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,745 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,747 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,748 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:41:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,761 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:41:21,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214317405] [2024-09-12 18:41:21,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214317405] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310646764] [2024-09-12 18:41:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:21,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:21,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:21,766 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 18:41:21,768 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 18:41:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:21,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:41:21,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:22,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 1138 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-09-12 18:41:22,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1254 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-09-12 18:41:22,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310646764] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:22,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:22,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 37 [2024-09-12 18:41:22,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192742377] [2024-09-12 18:41:22,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:22,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:41:22,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:22,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:41:22,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:41:22,621 INFO L87 Difference]: Start difference. First operand 3720 states and 4907 transitions. Second operand has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) [2024-09-12 18:41:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:26,186 INFO L93 Difference]: Finished difference Result 5587 states and 7216 transitions. [2024-09-12 18:41:26,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-09-12 18:41:26,187 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) Word has length 252 [2024-09-12 18:41:26,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:26,197 INFO L225 Difference]: With dead ends: 5587 [2024-09-12 18:41:26,197 INFO L226 Difference]: Without dead ends: 4904 [2024-09-12 18:41:26,200 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2348 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1602, Invalid=6770, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:41:26,200 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 567 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:26,200 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 898 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2024-09-12 18:41:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 4692. [2024-09-12 18:41:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 3940 states have (on average 1.2144670050761421) internal successors, (4785), 3964 states have internal predecessors, (4785), 605 states have call successors, (605), 131 states have call predecessors, (605), 129 states have return successors, (603), 596 states have call predecessors, (603), 603 states have call successors, (603) [2024-09-12 18:41:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 5993 transitions. [2024-09-12 18:41:28,566 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 5993 transitions. Word has length 252 [2024-09-12 18:41:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:28,566 INFO L474 AbstractCegarLoop]: Abstraction has 4692 states and 5993 transitions. [2024-09-12 18:41:28,567 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 7.972972972972973) internal successors, (295), 37 states have internal predecessors, (295), 18 states have call successors, (77), 12 states have call predecessors, (77), 11 states have return successors, (75), 17 states have call predecessors, (75), 18 states have call successors, (75) [2024-09-12 18:41:28,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 5993 transitions. [2024-09-12 18:41:28,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-09-12 18:41:28,568 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:28,568 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:28,579 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:28,768 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,49 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:28,769 INFO L399 AbstractCegarLoop]: === Iteration 63 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:28,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:28,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1979206049, now seen corresponding path program 1 times [2024-09-12 18:41:28,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:28,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442519200] [2024-09-12 18:41:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,102 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,120 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:41:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:41:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,126 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:41:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:41:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:41:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:29,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:29,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442519200] [2024-09-12 18:41:29,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442519200] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:29,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247012714] [2024-09-12 18:41:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:29,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:29,136 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:29,139 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-09-12 18:41:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:29,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:41:29,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 1551 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-09-12 18:41:29,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1699 backedges. 0 proven. 399 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:29,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247012714] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:29,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:29,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 38 [2024-09-12 18:41:29,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306550683] [2024-09-12 18:41:29,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:29,969 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-12 18:41:29,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:29,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-12 18:41:29,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 18:41:29,970 INFO L87 Difference]: Start difference. First operand 4692 states and 5993 transitions. Second operand has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) [2024-09-12 18:41:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:33,367 INFO L93 Difference]: Finished difference Result 6140 states and 7775 transitions. [2024-09-12 18:41:33,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-09-12 18:41:33,367 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) Word has length 284 [2024-09-12 18:41:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:33,377 INFO L225 Difference]: With dead ends: 6140 [2024-09-12 18:41:33,377 INFO L226 Difference]: Without dead ends: 4601 [2024-09-12 18:41:33,380 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1636, Invalid=6196, Unknown=0, NotChecked=0, Total=7832 [2024-09-12 18:41:33,380 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 364 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:33,381 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1197 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:33,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2024-09-12 18:41:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 4431. [2024-09-12 18:41:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4431 states, 3688 states have (on average 1.191702819956616) internal successors, (4395), 3710 states have internal predecessors, (4395), 545 states have call successors, (545), 182 states have call predecessors, (545), 180 states have return successors, (543), 538 states have call predecessors, (543), 543 states have call successors, (543) [2024-09-12 18:41:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 5483 transitions. [2024-09-12 18:41:35,398 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 5483 transitions. Word has length 284 [2024-09-12 18:41:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:35,399 INFO L474 AbstractCegarLoop]: Abstraction has 4431 states and 5483 transitions. [2024-09-12 18:41:35,399 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.605263157894736) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (86), 12 states have call predecessors, (86), 11 states have return successors, (84), 17 states have call predecessors, (84), 18 states have call successors, (84) [2024-09-12 18:41:35,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 5483 transitions. [2024-09-12 18:41:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-09-12 18:41:35,400 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:35,401 INFO L216 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:35,412 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-09-12 18:41:35,601 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,50 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:35,601 INFO L399 AbstractCegarLoop]: === Iteration 64 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:35,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1040877853, now seen corresponding path program 1 times [2024-09-12 18:41:35,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:35,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878256324] [2024-09-12 18:41:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:35,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,982 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:35,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:41:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:41:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:41:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:41:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:41:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:41:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:41:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:36,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:36,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878256324] [2024-09-12 18:41:36,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878256324] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:36,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236522550] [2024-09-12 18:41:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:36,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:36,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:36,020 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:36,021 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-09-12 18:41:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:36,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:41:36,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 1491 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-09-12 18:41:36,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-09-12 18:41:36,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236522550] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:36,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:36,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 20] total 42 [2024-09-12 18:41:36,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052579458] [2024-09-12 18:41:36,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:36,862 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-12 18:41:36,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-12 18:41:36,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1359, Unknown=0, NotChecked=0, Total=1722 [2024-09-12 18:41:36,863 INFO L87 Difference]: Start difference. First operand 4431 states and 5483 transitions. Second operand has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) [2024-09-12 18:41:40,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:40,224 INFO L93 Difference]: Finished difference Result 5705 states and 7119 transitions. [2024-09-12 18:41:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-09-12 18:41:40,224 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) Word has length 286 [2024-09-12 18:41:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:40,235 INFO L225 Difference]: With dead ends: 5705 [2024-09-12 18:41:40,235 INFO L226 Difference]: Without dead ends: 4687 [2024-09-12 18:41:40,239 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2815 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1852, Invalid=8048, Unknown=0, NotChecked=0, Total=9900 [2024-09-12 18:41:40,239 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 389 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:40,239 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1126 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:41:40,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2024-09-12 18:41:42,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4512. [2024-09-12 18:41:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 3755 states have (on average 1.1808255659121172) internal successors, (4434), 3779 states have internal predecessors, (4434), 553 states have call successors, (553), 188 states have call predecessors, (553), 186 states have return successors, (551), 544 states have call predecessors, (551), 551 states have call successors, (551) [2024-09-12 18:41:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 5538 transitions. [2024-09-12 18:41:42,321 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 5538 transitions. Word has length 286 [2024-09-12 18:41:42,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:42,321 INFO L474 AbstractCegarLoop]: Abstraction has 4512 states and 5538 transitions. [2024-09-12 18:41:42,322 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.976190476190476) internal successors, (335), 41 states have internal predecessors, (335), 20 states have call successors, (86), 13 states have call predecessors, (86), 12 states have return successors, (84), 19 states have call predecessors, (84), 20 states have call successors, (84) [2024-09-12 18:41:42,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 5538 transitions. [2024-09-12 18:41:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-09-12 18:41:42,324 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:42,324 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:42,338 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-09-12 18:41:42,524 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-09-12 18:41:42,524 INFO L399 AbstractCegarLoop]: === Iteration 65 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:42,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1527604584, now seen corresponding path program 5 times [2024-09-12 18:41:42,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:42,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244632771] [2024-09-12 18:41:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:42,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:41:42,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104667555] [2024-09-12 18:41:42,540 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:41:42,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:42,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:42,543 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:42,547 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-09-12 18:41:42,637 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-09-12 18:41:42,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:41:42,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 18:41:42,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1731 backedges. 37 proven. 290 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:41:43,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:43,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:43,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244632771] [2024-09-12 18:41:43,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:41:43,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104667555] [2024-09-12 18:41:43,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104667555] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:43,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:41:43,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 18:41:43,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486790648] [2024-09-12 18:41:43,680 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:43,680 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 18:41:43,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:43,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 18:41:43,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:41:43,681 INFO L87 Difference]: Start difference. First operand 4512 states and 5538 transitions. Second operand has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:41:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:41:53,486 INFO L93 Difference]: Finished difference Result 9450 states and 12393 transitions. [2024-09-12 18:41:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:41:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) Word has length 293 [2024-09-12 18:41:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:41:53,506 INFO L225 Difference]: With dead ends: 9450 [2024-09-12 18:41:53,506 INFO L226 Difference]: Without dead ends: 9404 [2024-09-12 18:41:53,509 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=524, Invalid=2556, Unknown=0, NotChecked=0, Total=3080 [2024-09-12 18:41:53,509 INFO L434 NwaCegarLoop]: 372 mSDtfsCounter, 830 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 6219 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 6376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 6219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:41:53,509 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2659 Invalid, 6376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 6219 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-09-12 18:41:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2024-09-12 18:41:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 6168. [2024-09-12 18:41:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 5155 states have (on average 1.1961202715809893) internal successors, (6166), 5181 states have internal predecessors, (6166), 812 states have call successors, (812), 185 states have call predecessors, (812), 183 states have return successors, (810), 801 states have call predecessors, (810), 810 states have call successors, (810) [2024-09-12 18:41:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 7788 transitions. [2024-09-12 18:41:56,791 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 7788 transitions. Word has length 293 [2024-09-12 18:41:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:41:56,791 INFO L474 AbstractCegarLoop]: Abstraction has 6168 states and 7788 transitions. [2024-09-12 18:41:56,791 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.176470588235293) internal successors, (156), 18 states have internal predecessors, (156), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 12 states have call predecessors, (29), 12 states have call successors, (29) [2024-09-12 18:41:56,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 7788 transitions. [2024-09-12 18:41:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-09-12 18:41:56,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:41:56,793 INFO L216 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:41:56,805 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 18:41:56,993 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,52 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:56,993 INFO L399 AbstractCegarLoop]: === Iteration 66 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:41:56,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:41:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash 510627348, now seen corresponding path program 1 times [2024-09-12 18:41:56,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:41:56,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970732638] [2024-09-12 18:41:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:56,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:41:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:41:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:41:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:41:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,186 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:41:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:41:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:41:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:41:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:41:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:41:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:41:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:41:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:41:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:41:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:41:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:41:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,203 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-09-12 18:41:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:41:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-09-12 18:41:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-09-12 18:41:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:41:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-09-12 18:41:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:41:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:41:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:41:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:41:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:41:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:41:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:41:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,223 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:41:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 85 proven. 294 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-09-12 18:41:57,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:41:57,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970732638] [2024-09-12 18:41:57,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970732638] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:41:57,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761301818] [2024-09-12 18:41:57,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:41:57,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:41:57,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:41:57,227 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:41:57,228 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-09-12 18:41:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:41:57,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:41:57,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:41:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 617 proven. 187 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2024-09-12 18:41:57,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:41:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 177 proven. 187 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2024-09-12 18:41:57,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761301818] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:41:57,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:41:57,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 15 [2024-09-12 18:41:57,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345864841] [2024-09-12 18:41:57,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:41:57,727 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:41:57,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:41:57,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:41:57,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:41:57,728 INFO L87 Difference]: Start difference. First operand 6168 states and 7788 transitions. Second operand has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:42:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:02,116 INFO L93 Difference]: Finished difference Result 9133 states and 11775 transitions. [2024-09-12 18:42:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:42:02,117 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) Word has length 296 [2024-09-12 18:42:02,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:02,133 INFO L225 Difference]: With dead ends: 9133 [2024-09-12 18:42:02,133 INFO L226 Difference]: Without dead ends: 5133 [2024-09-12 18:42:02,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 645 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:42:02,141 INFO L434 NwaCegarLoop]: 201 mSDtfsCounter, 454 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:02,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1340 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-09-12 18:42:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2024-09-12 18:42:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 4613. [2024-09-12 18:42:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4613 states, 3840 states have (on average 1.1877604166666667) internal successors, (4561), 3865 states have internal predecessors, (4561), 598 states have call successors, (598), 159 states have call predecessors, (598), 157 states have return successors, (596), 588 states have call predecessors, (596), 596 states have call successors, (596) [2024-09-12 18:42:04,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4613 states to 4613 states and 5755 transitions. [2024-09-12 18:42:04,510 INFO L78 Accepts]: Start accepts. Automaton has 4613 states and 5755 transitions. Word has length 296 [2024-09-12 18:42:04,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:04,510 INFO L474 AbstractCegarLoop]: Abstraction has 4613 states and 5755 transitions. [2024-09-12 18:42:04,510 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.866666666666667) internal successors, (223), 14 states have internal predecessors, (223), 12 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 12 states have call predecessors, (46), 12 states have call successors, (46) [2024-09-12 18:42:04,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:04,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4613 states and 5755 transitions. [2024-09-12 18:42:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-09-12 18:42:04,512 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:04,512 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:04,524 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:04,712 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,53 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:04,712 INFO L399 AbstractCegarLoop]: === Iteration 67 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:04,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash -677798653, now seen corresponding path program 6 times [2024-09-12 18:42:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:04,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737253995] [2024-09-12 18:42:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:04,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:42:04,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727649920] [2024-09-12 18:42:04,745 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:42:04,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:04,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:04,747 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 18:42:04,748 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 18:42:04,866 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-12 18:42:04,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:04,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 18:42:04,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2319 backedges. 181 proven. 351 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2024-09-12 18:42:05,562 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:05,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737253995] [2024-09-12 18:42:05,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:42:05,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727649920] [2024-09-12 18:42:05,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727649920] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:05,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:42:05,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:42:05,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363362821] [2024-09-12 18:42:05,997 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:05,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:42:05,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:42:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-09-12 18:42:05,997 INFO L87 Difference]: Start difference. First operand 4613 states and 5755 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:42:12,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:12,060 INFO L93 Difference]: Finished difference Result 5639 states and 7168 transitions. [2024-09-12 18:42:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 18:42:12,060 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 334 [2024-09-12 18:42:12,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:12,074 INFO L225 Difference]: With dead ends: 5639 [2024-09-12 18:42:12,074 INFO L226 Difference]: Without dead ends: 5609 [2024-09-12 18:42:12,075 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:42:12,075 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 221 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:12,075 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 645 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-09-12 18:42:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2024-09-12 18:42:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 4249. [2024-09-12 18:42:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 3538 states have (on average 1.1681741096664782) internal successors, (4133), 3561 states have internal predecessors, (4133), 537 states have call successors, (537), 159 states have call predecessors, (537), 157 states have return successors, (535), 528 states have call predecessors, (535), 535 states have call successors, (535) [2024-09-12 18:42:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 5205 transitions. [2024-09-12 18:42:14,536 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 5205 transitions. Word has length 334 [2024-09-12 18:42:14,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:14,537 INFO L474 AbstractCegarLoop]: Abstraction has 4249 states and 5205 transitions. [2024-09-12 18:42:14,537 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 18:42:14,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:14,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 5205 transitions. [2024-09-12 18:42:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-09-12 18:42:14,538 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:14,538 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:14,546 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 18:42:14,739 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-09-12 18:42:14,739 INFO L399 AbstractCegarLoop]: === Iteration 68 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:14,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:14,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1753092151, now seen corresponding path program 2 times [2024-09-12 18:42:14,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:14,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773404009] [2024-09-12 18:42:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:14,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-09-12 18:42:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-09-12 18:42:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-09-12 18:42:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-09-12 18:42:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:42:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:42:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:42:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:42:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:42:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:42:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:42:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 100 proven. 426 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:42:14,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:14,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773404009] [2024-09-12 18:42:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773404009] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:14,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838940356] [2024-09-12 18:42:14,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:42:14,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:14,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:14,951 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 18:42:14,952 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 18:42:15,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:42:15,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:15,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 18:42:15,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 220 proven. 426 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-09-12 18:42:15,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2386 backedges. 100 proven. 426 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 18:42:15,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838940356] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:15,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 15 [2024-09-12 18:42:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221808191] [2024-09-12 18:42:15,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:15,627 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 18:42:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 18:42:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:42:15,627 INFO L87 Difference]: Start difference. First operand 4249 states and 5205 transitions. Second operand has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) [2024-09-12 18:42:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:19,514 INFO L93 Difference]: Finished difference Result 5979 states and 7473 transitions. [2024-09-12 18:42:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 18:42:19,515 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) Word has length 337 [2024-09-12 18:42:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:19,529 INFO L225 Difference]: With dead ends: 5979 [2024-09-12 18:42:19,529 INFO L226 Difference]: Without dead ends: 3363 [2024-09-12 18:42:19,535 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 735 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:42:19,536 INFO L434 NwaCegarLoop]: 223 mSDtfsCounter, 511 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:19,536 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1827 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 18:42:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2024-09-12 18:42:20,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2908. [2024-09-12 18:42:20,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2401 states have (on average 1.1382757184506456) internal successors, (2733), 2422 states have internal predecessors, (2733), 348 states have call successors, (348), 144 states have call predecessors, (348), 142 states have return successors, (346), 341 states have call predecessors, (346), 346 states have call successors, (346) [2024-09-12 18:42:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3427 transitions. [2024-09-12 18:42:20,998 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3427 transitions. Word has length 337 [2024-09-12 18:42:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:20,998 INFO L474 AbstractCegarLoop]: Abstraction has 2908 states and 3427 transitions. [2024-09-12 18:42:20,998 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.8) internal successors, (222), 14 states have internal predecessors, (222), 12 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (41), 12 states have call predecessors, (41), 12 states have call successors, (41) [2024-09-12 18:42:20,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3427 transitions. [2024-09-12 18:42:21,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-09-12 18:42:21,000 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:21,000 INFO L216 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:21,012 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 18:42:21,201 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,55 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:21,201 INFO L399 AbstractCegarLoop]: === Iteration 69 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:21,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1906360908, now seen corresponding path program 3 times [2024-09-12 18:42:21,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:21,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282865821] [2024-09-12 18:42:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:21,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:42:21,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189091184] [2024-09-12 18:42:21,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:42:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:21,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:21,225 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 18:42:21,226 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 18:42:21,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:42:21,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:21,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 18:42:21,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:21,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3078 backedges. 494 proven. 29 refuted. 0 times theorem prover too weak. 2555 trivial. 0 not checked. [2024-09-12 18:42:21,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:22,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282865821] [2024-09-12 18:42:22,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:42:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189091184] [2024-09-12 18:42:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189091184] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:22,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:42:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 18:42:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310428328] [2024-09-12 18:42:22,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:22,051 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 18:42:22,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 18:42:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:42:22,051 INFO L87 Difference]: Start difference. First operand 2908 states and 3427 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-09-12 18:42:23,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:42:26,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:26,885 INFO L93 Difference]: Finished difference Result 3553 states and 4318 transitions. [2024-09-12 18:42:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 18:42:26,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 378 [2024-09-12 18:42:26,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:26,900 INFO L225 Difference]: With dead ends: 3553 [2024-09-12 18:42:26,900 INFO L226 Difference]: Without dead ends: 3547 [2024-09-12 18:42:26,901 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:42:26,902 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 189 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:26,902 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 600 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1142 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2024-09-12 18:42:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2024-09-12 18:42:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 2733. [2024-09-12 18:42:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2255 states have (on average 1.1121951219512196) internal successors, (2508), 2276 states have internal predecessors, (2508), 319 states have call successors, (319), 144 states have call predecessors, (319), 142 states have return successors, (317), 312 states have call predecessors, (317), 317 states have call successors, (317) [2024-09-12 18:42:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3144 transitions. [2024-09-12 18:42:28,304 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3144 transitions. Word has length 378 [2024-09-12 18:42:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:28,304 INFO L474 AbstractCegarLoop]: Abstraction has 2733 states and 3144 transitions. [2024-09-12 18:42:28,304 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 3 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-09-12 18:42:28,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3144 transitions. [2024-09-12 18:42:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-09-12 18:42:28,306 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:28,307 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:28,319 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:28,507 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,56 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:28,507 INFO L399 AbstractCegarLoop]: === Iteration 70 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:28,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash -428133688, now seen corresponding path program 2 times [2024-09-12 18:42:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:28,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200206110] [2024-09-12 18:42:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:28,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,161 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,164 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:42:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:42:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:42:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:42:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:42:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:42:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:42:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,200 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 18:42:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 0 proven. 835 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200206110] [2024-09-12 18:42:29,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200206110] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335575601] [2024-09-12 18:42:29,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:42:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:29,207 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:29,211 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-09-12 18:42:29,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 18:42:29,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:29,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:42:29,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3955 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 3604 trivial. 0 not checked. [2024-09-12 18:42:29,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:42:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335575601] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:42:29,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:42:29,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [29] total 32 [2024-09-12 18:42:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248523426] [2024-09-12 18:42:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:42:29,368 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:42:29,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:29,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:42:29,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=827, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 18:42:29,369 INFO L87 Difference]: Start difference. First operand 2733 states and 3144 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:42:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:30,873 INFO L93 Difference]: Finished difference Result 2743 states and 3150 transitions. [2024-09-12 18:42:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:42:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 428 [2024-09-12 18:42:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:30,882 INFO L225 Difference]: With dead ends: 2743 [2024-09-12 18:42:30,882 INFO L226 Difference]: Without dead ends: 2742 [2024-09-12 18:42:30,883 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=238, Invalid=952, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 18:42:30,883 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 23 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:30,883 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 281 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:42:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2024-09-12 18:42:32,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2741. [2024-09-12 18:42:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2261 states have (on average 1.1065900044228218) internal successors, (2502), 2282 states have internal predecessors, (2502), 319 states have call successors, (319), 146 states have call predecessors, (319), 144 states have return successors, (317), 312 states have call predecessors, (317), 317 states have call successors, (317) [2024-09-12 18:42:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 3138 transitions. [2024-09-12 18:42:32,275 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 3138 transitions. Word has length 428 [2024-09-12 18:42:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:32,275 INFO L474 AbstractCegarLoop]: Abstraction has 2741 states and 3138 transitions. [2024-09-12 18:42:32,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-09-12 18:42:32,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 3138 transitions. [2024-09-12 18:42:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-09-12 18:42:32,278 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:32,279 INFO L216 NwaCegarLoop]: trace histogram [40, 40, 40, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:32,295 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:32,479 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-09-12 18:42:32,479 INFO L399 AbstractCegarLoop]: === Iteration 71 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:32,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1522260820, now seen corresponding path program 1 times [2024-09-12 18:42:32,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:32,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463018448] [2024-09-12 18:42:32,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:32,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,139 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,148 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,154 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:42:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,169 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:42:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:42:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,174 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:42:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,175 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:42:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:42:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-09-12 18:42:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:42:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,184 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,187 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,188 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,189 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2024-09-12 18:42:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,194 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:33,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:33,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463018448] [2024-09-12 18:42:33,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463018448] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:33,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25598149] [2024-09-12 18:42:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:33,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:33,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:33,201 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:33,202 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-09-12 18:42:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:33,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 18:42:33,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 3760 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-09-12 18:42:33,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3968 backedges. 4 proven. 844 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-09-12 18:42:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25598149] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:42:34,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:42:34,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 28, 28] total 58 [2024-09-12 18:42:34,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83538425] [2024-09-12 18:42:34,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:34,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-09-12 18:42:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-09-12 18:42:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=2599, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 18:42:34,594 INFO L87 Difference]: Start difference. First operand 2741 states and 3138 transitions. Second operand has 58 states, 58 states have (on average 8.551724137931034) internal successors, (496), 57 states have internal predecessors, (496), 28 states have call successors, (128), 17 states have call predecessors, (128), 16 states have return successors, (126), 27 states have call predecessors, (126), 28 states have call successors, (126) [2024-09-12 18:42:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:39,300 INFO L93 Difference]: Finished difference Result 5365 states and 6276 transitions. [2024-09-12 18:42:39,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2024-09-12 18:42:39,301 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 8.551724137931034) internal successors, (496), 57 states have internal predecessors, (496), 28 states have call successors, (128), 17 states have call predecessors, (128), 16 states have return successors, (126), 27 states have call predecessors, (126), 28 states have call successors, (126) Word has length 431 [2024-09-12 18:42:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:39,315 INFO L225 Difference]: With dead ends: 5365 [2024-09-12 18:42:39,315 INFO L226 Difference]: Without dead ends: 4058 [2024-09-12 18:42:39,320 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6764 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4181, Invalid=18169, Unknown=0, NotChecked=0, Total=22350 [2024-09-12 18:42:39,320 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 636 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:39,320 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1429 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 18:42:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2024-09-12 18:42:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 3797. [2024-09-12 18:42:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 3123 states have (on average 1.0829330771693884) internal successors, (3382), 3144 states have internal predecessors, (3382), 446 states have call successors, (446), 213 states have call predecessors, (446), 211 states have return successors, (444), 439 states have call predecessors, (444), 444 states have call successors, (444) [2024-09-12 18:42:41,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 4272 transitions. [2024-09-12 18:42:41,367 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 4272 transitions. Word has length 431 [2024-09-12 18:42:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:42:41,367 INFO L474 AbstractCegarLoop]: Abstraction has 3797 states and 4272 transitions. [2024-09-12 18:42:41,367 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 8.551724137931034) internal successors, (496), 57 states have internal predecessors, (496), 28 states have call successors, (128), 17 states have call predecessors, (128), 16 states have return successors, (126), 27 states have call predecessors, (126), 28 states have call successors, (126) [2024-09-12 18:42:41,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 4272 transitions. [2024-09-12 18:42:41,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-09-12 18:42:41,370 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:42:41,370 INFO L216 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:42:41,384 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2024-09-12 18:42:41,570 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,58 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:41,571 INFO L399 AbstractCegarLoop]: === Iteration 72 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:42:41,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:42:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash 667174059, now seen corresponding path program 3 times [2024-09-12 18:42:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:42:41,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634728594] [2024-09-12 18:42:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:42:41,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:42:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:42:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:42:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:42:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:42:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:42:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:42:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:42:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:42:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:42:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:42:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:42:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:42:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:42:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:42:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:42:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:42:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:42:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:42:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,954 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:42:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:42:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:42:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,957 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:42:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:42:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-09-12 18:42:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:42:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-09-12 18:42:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 18:42:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:42:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,965 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 18:42:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-09-12 18:42:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,967 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2024-09-12 18:42:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:42:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-09-12 18:42:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,971 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-09-12 18:42:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2024-09-12 18:42:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:42:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-09-12 18:42:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2024-09-12 18:42:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,976 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-09-12 18:42:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:42:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2024-09-12 18:42:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-09-12 18:42:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,980 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-09-12 18:42:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 18:42:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:42:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 989 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-09-12 18:42:41,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:42:41,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634728594] [2024-09-12 18:42:41,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634728594] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:41,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857062594] [2024-09-12 18:42:41,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:42:41,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:42:41,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:42:41,985 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:42:41,986 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-09-12 18:42:42,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 18:42:42,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:42:42,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 18:42:42,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:42:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 375 proven. 577 refuted. 0 times theorem prover too weak. 3481 trivial. 0 not checked. [2024-09-12 18:42:43,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:42:43,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857062594] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:42:43,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:42:43,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 28 [2024-09-12 18:42:43,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029564105] [2024-09-12 18:42:43,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:42:43,781 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 18:42:43,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:42:43,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 18:42:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=1054, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:42:43,782 INFO L87 Difference]: Start difference. First operand 3797 states and 4272 transitions. Second operand has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) [2024-09-12 18:42:57,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:42:57,557 INFO L93 Difference]: Finished difference Result 4809 states and 5497 transitions. [2024-09-12 18:42:57,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-12 18:42:57,557 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) Word has length 445 [2024-09-12 18:42:57,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:42:57,570 INFO L225 Difference]: With dead ends: 4809 [2024-09-12 18:42:57,570 INFO L226 Difference]: Without dead ends: 4709 [2024-09-12 18:42:57,573 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3454 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1821, Invalid=9309, Unknown=0, NotChecked=0, Total=11130 [2024-09-12 18:42:57,573 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 851 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:42:57,573 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1120 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:42:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4709 states. [2024-09-12 18:43:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4709 to 4617. [2024-09-12 18:43:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4617 states, 3821 states have (on average 1.0808688824914943) internal successors, (4130), 3842 states have internal predecessors, (4130), 568 states have call successors, (568), 213 states have call predecessors, (568), 211 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566) [2024-09-12 18:43:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 5264 transitions. [2024-09-12 18:43:00,356 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 5264 transitions. Word has length 445 [2024-09-12 18:43:00,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:43:00,357 INFO L474 AbstractCegarLoop]: Abstraction has 4617 states and 5264 transitions. [2024-09-12 18:43:00,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 11.925925925925926) internal successors, (322), 26 states have internal predecessors, (322), 17 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (60), 19 states have call predecessors, (60), 17 states have call successors, (60) [2024-09-12 18:43:00,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:43:00,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 5264 transitions. [2024-09-12 18:43:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-09-12 18:43:00,360 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:43:00,360 INFO L216 NwaCegarLoop]: trace histogram [45, 45, 45, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:43:00,372 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 18:43:00,560 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,59 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:43:00,561 INFO L399 AbstractCegarLoop]: === Iteration 73 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-09-12 18:43:00,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:43:00,561 INFO L85 PathProgramCache]: Analyzing trace with hash -314930240, now seen corresponding path program 3 times [2024-09-12 18:43:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:43:00,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983071109] [2024-09-12 18:43:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:43:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:43:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:43:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:43:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 18:43:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-09-12 18:43:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-09-12 18:43:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 18:43:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 18:43:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-09-12 18:43:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-09-12 18:43:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 18:43:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 18:43:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 18:43:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 18:43:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,881 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-09-12 18:43:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-09-12 18:43:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-09-12 18:43:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,885 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 18:43:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-09-12 18:43:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,888 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 18:43:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-09-12 18:43:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-09-12 18:43:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-09-12 18:43:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 18:43:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-09-12 18:43:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-09-12 18:43:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-09-12 18:43:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-09-12 18:43:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 18:43:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-09-12 18:43:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2024-09-12 18:43:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-09-12 18:43:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,908 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-09-12 18:43:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-09-12 18:43:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,910 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-09-12 18:43:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-09-12 18:43:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-09-12 18:43:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-09-12 18:43:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-09-12 18:43:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-09-12 18:43:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2024-09-12 18:43:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2024-09-12 18:43:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2024-09-12 18:43:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,923 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-09-12 18:43:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-09-12 18:43:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2024-09-12 18:43:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2024-09-12 18:43:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,928 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2024-09-12 18:43:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:43:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:43:00,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:43:00,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983071109] [2024-09-12 18:43:00,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983071109] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:43:00,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995373760] [2024-09-12 18:43:00,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:43:00,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:43:00,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:43:00,934 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 18:43:00,935 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 18:43:01,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2024-09-12 18:43:01,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:43:01,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 18:43:01,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:43:01,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:43:01,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:43:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2024-09-12 18:43:02,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995373760] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:43:02,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:43:02,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 35 [2024-09-12 18:43:02,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139294428] [2024-09-12 18:43:02,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:43:02,595 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 18:43:02,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:43:02,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 18:43:02,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=857, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 18:43:02,597 INFO L87 Difference]: Start difference. First operand 4617 states and 5264 transitions. Second operand has 36 states, 35 states have (on average 18.685714285714287) internal successors, (654), 35 states have internal predecessors, (654), 34 states have call successors, (128), 2 states have call predecessors, (128), 1 states have return successors, (126), 34 states have call predecessors, (126), 34 states have call successors, (126)