./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.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/hard2_valuebound100.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 c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 --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 19:17:17,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:17:17,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:17:17,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:17:17,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:17:17,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:17:17,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:17:17,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:17:17,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:17:17,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:17:17,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:17:17,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:17:17,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:17:17,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:17:17,324 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:17:17,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:17:17,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:17:17,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:17:17,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:17:17,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:17:17,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:17:17,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:17:17,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:17:17,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:17:17,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:17:17,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:17:17,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:17:17,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:17:17,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:17:17,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:17:17,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:17:17,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:17:17,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:17:17,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:17:17,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:17:17,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:17:17,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:17:17,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:17:17,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:17:17,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:17:17,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:17:17,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:17:17,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:17:17,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:17:17,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:17:17,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:17:17,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:17:17,677 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:17:17,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-09-12 19:17:19,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:17:19,235 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:17:19,235 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-09-12 19:17:19,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/47f48beaa/49026bc73c6e4fb59b413d969e60f559/FLAGa08800365 [2024-09-12 19:17:19,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/47f48beaa/49026bc73c6e4fb59b413d969e60f559 [2024-09-12 19:17:19,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:17:19,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:17:19,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:17:19,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:17:19,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:17:19,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,273 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6820f344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19, skipping insertion in model container [2024-09-12 19:17:19,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:17:19,462 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/hard2_valuebound100.c[526,539] [2024-09-12 19:17:19,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:17:19,500 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:17:19,514 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/hard2_valuebound100.c[526,539] [2024-09-12 19:17:19,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:17:19,543 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:17:19,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19 WrapperNode [2024-09-12 19:17:19,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:17:19,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:17:19,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:17:19,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:17:19,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,571 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:17:19,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:17:19,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:17:19,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:17:19,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:17:19,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,600 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-09-12 19:17:19,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:17:19,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:17:19,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:17:19,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:17:19,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (1/1) ... [2024-09-12 19:17:19,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:17:19,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:19,656 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 19:17:19,659 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 19:17:19,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:17:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:17:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:17:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:17:19,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:17:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:17:19,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-12 19:17:19,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:17:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:17:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:17:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:17:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:17:19,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:17:19,769 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:17:19,771 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:17:20,077 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-09-12 19:17:20,077 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:17:20,112 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:17:20,112 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 19:17:20,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:17:20 BoogieIcfgContainer [2024-09-12 19:17:20,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:17:20,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:17:20,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:17:20,119 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:17:20,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:17:19" (1/3) ... [2024-09-12 19:17:20,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47005e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:17:20, skipping insertion in model container [2024-09-12 19:17:20,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:17:19" (2/3) ... [2024-09-12 19:17:20,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47005e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:17:20, skipping insertion in model container [2024-09-12 19:17:20,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:17:20" (3/3) ... [2024-09-12 19:17:20,123 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound100.c [2024-09-12 19:17:20,138 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:17:20,138 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:17:20,203 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:17:20,209 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;@5f9ce9f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:17:20,210 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:17:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 41 states have (on average 1.829268292682927) internal successors, (75), 66 states have internal predecessors, (75), 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 19:17:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 19:17:20,220 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:20,221 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:20,221 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:20,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1210446024, now seen corresponding path program 1 times [2024-09-12 19:17:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:20,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119628924] [2024-09-12 19:17:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,398 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 19:17:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119628924] [2024-09-12 19:17:20,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119628924] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:20,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:20,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:17:20,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311623445] [2024-09-12 19:17:20,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:20,409 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:17:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:20,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:17:20,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:17:20,440 INFO L87 Difference]: Start difference. First operand has 81 states, 41 states have (on average 1.829268292682927) internal successors, (75), 66 states have internal predecessors, (75), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 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 19:17:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:20,475 INFO L93 Difference]: Finished difference Result 154 states and 188 transitions. [2024-09-12 19:17:20,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:17:20,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 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 14 [2024-09-12 19:17:20,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:20,486 INFO L225 Difference]: With dead ends: 154 [2024-09-12 19:17:20,486 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 19:17:20,490 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:17:20,494 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:20,496 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:17:20,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 19:17:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 19:17:20,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 64 states have internal predecessors, (67), 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 19:17:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2024-09-12 19:17:20,537 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 14 [2024-09-12 19:17:20,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:20,538 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2024-09-12 19:17:20,538 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 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 19:17:20,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2024-09-12 19:17:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 19:17:20,539 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:20,539 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:20,540 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:17:20,540 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:20,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:20,540 INFO L85 PathProgramCache]: Analyzing trace with hash -14664005, now seen corresponding path program 1 times [2024-09-12 19:17:20,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:20,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165773467] [2024-09-12 19:17:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:20,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:20,744 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 19:17:20,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165773467] [2024-09-12 19:17:20,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165773467] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:20,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:20,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:17:20,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038193401] [2024-09-12 19:17:20,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:20,747 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:20,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:20,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:20,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:20,754 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 19:17:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:21,035 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2024-09-12 19:17:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:21,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 16 [2024-09-12 19:17:21,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:21,038 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:17:21,038 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:17:21,038 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:17:21,042 INFO L434 NwaCegarLoop]: 65 mSDtfsCounter, 47 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:21,043 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 230 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:17:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:17:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2024-09-12 19:17:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 57 states have (on average 1.6666666666666667) internal successors, (95), 82 states have internal predecessors, (95), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:17:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2024-09-12 19:17:21,073 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 16 [2024-09-12 19:17:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:21,073 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2024-09-12 19:17:21,074 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 19:17:21,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2024-09-12 19:17:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:17:21,076 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:21,076 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] [2024-09-12 19:17:21,077 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:17:21,077 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:21,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1730326410, now seen corresponding path program 1 times [2024-09-12 19:17:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:21,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114202781] [2024-09-12 19:17:21,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:21,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,186 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 19:17:21,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:21,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114202781] [2024-09-12 19:17:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114202781] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:21,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:21,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:17:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139915884] [2024-09-12 19:17:21,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:21,190 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:21,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:21,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:21,191 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (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 19:17:21,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:21,324 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-09-12 19:17:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:21,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (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 21 [2024-09-12 19:17:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:21,327 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:17:21,327 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:17:21,327 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 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 19:17:21,328 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 43 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:21,329 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 243 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:17:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2024-09-12 19:17:21,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 60 states have (on average 1.6333333333333333) internal successors, (98), 85 states have internal predecessors, (98), 12 states have call successors, (12), 6 states have call predecessors, (12), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:17:21,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 120 transitions. [2024-09-12 19:17:21,342 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 120 transitions. Word has length 21 [2024-09-12 19:17:21,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:21,342 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 120 transitions. [2024-09-12 19:17:21,342 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (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 19:17:21,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 120 transitions. [2024-09-12 19:17:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 19:17:21,343 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:21,344 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] [2024-09-12 19:17:21,344 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:17:21,344 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:21,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,344 INFO L85 PathProgramCache]: Analyzing trace with hash -691178579, now seen corresponding path program 1 times [2024-09-12 19:17:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:21,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417058343] [2024-09-12 19:17:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:21,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144557778] [2024-09-12 19:17:21,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:21,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:21,364 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 19:17:21,366 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 19:17:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:21,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:17:21,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:21,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:21,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417058343] [2024-09-12 19:17:21,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:21,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144557778] [2024-09-12 19:17:21,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144557778] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:21,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:17:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105937909] [2024-09-12 19:17:21,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:21,469 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:17:21,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:21,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:17:21,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:17:21,472 INFO L87 Difference]: Start difference. First operand 102 states and 120 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 19:17:21,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:21,573 INFO L93 Difference]: Finished difference Result 195 states and 240 transitions. [2024-09-12 19:17:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:17:21,574 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), 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 23 [2024-09-12 19:17:21,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:21,575 INFO L225 Difference]: With dead ends: 195 [2024-09-12 19:17:21,575 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:17:21,576 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 19:17:21,577 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:21,578 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 123 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:21,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:17:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-09-12 19:17:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 101 states have internal predecessors, (119), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 19:17:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-09-12 19:17:21,596 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 23 [2024-09-12 19:17:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:21,596 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-09-12 19:17:21,597 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), 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 19:17:21,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-09-12 19:17:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:17:21,598 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:21,598 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] [2024-09-12 19:17:21,615 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 19:17:21,798 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:21,799 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:21,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -915238307, now seen corresponding path program 1 times [2024-09-12 19:17:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:21,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119041832] [2024-09-12 19:17:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:21,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:21,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216794624] [2024-09-12 19:17:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:21,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:21,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:21,825 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 19:17:21,829 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 19:17:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:21,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:17:21,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:21,974 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 19:17:21,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:21,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:21,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119041832] [2024-09-12 19:17:21,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216794624] [2024-09-12 19:17:21,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216794624] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:21,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:21,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:17:21,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646016278] [2024-09-12 19:17:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:21,979 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:21,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:21,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:21,980 INFO L87 Difference]: Start difference. First operand 123 states and 151 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:17:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:22,159 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2024-09-12 19:17:22,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:22,160 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2024-09-12 19:17:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:22,161 INFO L225 Difference]: With dead ends: 131 [2024-09-12 19:17:22,161 INFO L226 Difference]: Without dead ends: 127 [2024-09-12 19:17:22,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 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 19:17:22,162 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 13 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:22,163 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 221 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:17:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-09-12 19:17:22,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-09-12 19:17:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 79 states have (on average 1.518987341772152) internal successors, (120), 104 states have internal predecessors, (120), 17 states have call successors, (17), 7 states have call predecessors, (17), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 19:17:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 152 transitions. [2024-09-12 19:17:22,196 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 152 transitions. Word has length 28 [2024-09-12 19:17:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:22,196 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 152 transitions. [2024-09-12 19:17:22,196 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:17:22,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 152 transitions. [2024-09-12 19:17:22,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:17:22,200 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:22,200 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:22,214 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:22,401 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:22,402 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:22,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:22,402 INFO L85 PathProgramCache]: Analyzing trace with hash -404225700, now seen corresponding path program 1 times [2024-09-12 19:17:22,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:22,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572676625] [2024-09-12 19:17:22,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:22,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,610 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:17:22,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:22,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572676625] [2024-09-12 19:17:22,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572676625] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:22,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:22,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:17:22,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258880743] [2024-09-12 19:17:22,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:22,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:17:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:22,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:17:22,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:17:22,636 INFO L87 Difference]: Start difference. First operand 127 states and 152 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:17:23,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:23,148 INFO L93 Difference]: Finished difference Result 145 states and 170 transitions. [2024-09-12 19:17:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:17:23,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 34 [2024-09-12 19:17:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:23,151 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:17:23,151 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:17:23,151 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:17:23,152 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 180 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:23,152 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 226 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:17:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:17:23,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2024-09-12 19:17:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 83 states have (on average 1.4939759036144578) internal successors, (124), 108 states have internal predecessors, (124), 17 states have call successors, (17), 7 states have call predecessors, (17), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 19:17:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2024-09-12 19:17:23,183 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 34 [2024-09-12 19:17:23,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:23,183 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2024-09-12 19:17:23,184 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:17:23,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2024-09-12 19:17:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:17:23,185 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:23,185 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:23,185 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:17:23,186 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:23,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 353905281, now seen corresponding path program 1 times [2024-09-12 19:17:23,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:23,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624825002] [2024-09-12 19:17:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:23,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:17:23,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624825002] [2024-09-12 19:17:23,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624825002] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:23,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:23,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:17:23,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864658872] [2024-09-12 19:17:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:23,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:23,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:23,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:23,281 INFO L87 Difference]: Start difference. First operand 131 states and 156 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:23,711 INFO L93 Difference]: Finished difference Result 145 states and 173 transitions. [2024-09-12 19:17:23,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:17:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-09-12 19:17:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:23,714 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:17:23,714 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:17:23,714 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 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 19:17:23,716 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 55 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:23,716 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 201 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:17:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:17:23,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2024-09-12 19:17:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 89 states have (on average 1.449438202247191) internal successors, (129), 114 states have internal predecessors, (129), 17 states have call successors, (17), 7 states have call predecessors, (17), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 19:17:23,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2024-09-12 19:17:23,765 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 35 [2024-09-12 19:17:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:23,766 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2024-09-12 19:17:23,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:23,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:23,766 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2024-09-12 19:17:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:17:23,769 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:23,769 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:23,770 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:17:23,770 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:23,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash 542780013, now seen corresponding path program 1 times [2024-09-12 19:17:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:23,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286247066] [2024-09-12 19:17:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:23,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:23,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155364448] [2024-09-12 19:17:23,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:23,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:23,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:23,788 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 19:17:23,790 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 19:17:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:23,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:17:23,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:17:23,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:23,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286247066] [2024-09-12 19:17:23,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155364448] [2024-09-12 19:17:23,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155364448] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:23,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:23,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:17:23,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426334149] [2024-09-12 19:17:23,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:23,918 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:23,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:23,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:23,919 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:24,065 INFO L93 Difference]: Finished difference Result 155 states and 177 transitions. [2024-09-12 19:17:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:24,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-09-12 19:17:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:24,068 INFO L225 Difference]: With dead ends: 155 [2024-09-12 19:17:24,068 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:17:24,069 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 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 19:17:24,070 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:24,071 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 206 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:17:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 144. [2024-09-12 19:17:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 94 states have (on average 1.446808510638298) internal successors, (136), 120 states have internal predecessors, (136), 18 states have call successors, (18), 8 states have call predecessors, (18), 7 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 19:17:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2024-09-12 19:17:24,116 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 39 [2024-09-12 19:17:24,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:24,117 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2024-09-12 19:17:24,117 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:24,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:24,118 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2024-09-12 19:17:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:17:24,122 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:24,122 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 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 19:17:24,138 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 19:17:24,323 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-12 19:17:24,323 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:24,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1318184578, now seen corresponding path program 1 times [2024-09-12 19:17:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:24,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563850095] [2024-09-12 19:17:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:24,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482789188] [2024-09-12 19:17:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:24,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:24,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:24,346 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 19:17:24,350 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 19:17:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:24,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:24,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:17:24,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:24,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563850095] [2024-09-12 19:17:24,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:24,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482789188] [2024-09-12 19:17:24,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482789188] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:24,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:24,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:17:24,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017504317] [2024-09-12 19:17:24,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:24,477 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:24,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:24,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:24,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:17:24,478 INFO L87 Difference]: Start difference. First operand 144 states and 170 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:24,597 INFO L93 Difference]: Finished difference Result 167 states and 197 transitions. [2024-09-12 19:17:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:24,597 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 46 [2024-09-12 19:17:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:24,600 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:17:24,600 INFO L226 Difference]: Without dead ends: 145 [2024-09-12 19:17:24,600 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 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 19:17:24,601 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:24,602 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 150 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-09-12 19:17:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-09-12 19:17:24,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 119 states have internal predecessors, (134), 20 states have call successors, (20), 8 states have call predecessors, (20), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:17:24,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2024-09-12 19:17:24,638 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 46 [2024-09-12 19:17:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:24,638 INFO L474 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2024-09-12 19:17:24,638 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, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:24,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:24,639 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2024-09-12 19:17:24,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:17:24,640 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:24,640 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 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 19:17:24,657 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:17:24,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:24,841 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:24,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:24,842 INFO L85 PathProgramCache]: Analyzing trace with hash 2085951102, now seen corresponding path program 1 times [2024-09-12 19:17:24,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:24,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655814274] [2024-09-12 19:17:24,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:24,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131339983] [2024-09-12 19:17:24,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:24,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:24,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:24,855 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 19:17:24,857 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 19:17:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:24,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:24,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:17:24,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:25,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655814274] [2024-09-12 19:17:25,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131339983] [2024-09-12 19:17:25,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131339983] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:25,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:25,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 19:17:25,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847742311] [2024-09-12 19:17:25,378 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:25,378 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:25,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:25,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:17:25,379 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:25,522 INFO L93 Difference]: Finished difference Result 221 states and 277 transitions. [2024-09-12 19:17:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:25,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 47 [2024-09-12 19:17:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:25,526 INFO L225 Difference]: With dead ends: 221 [2024-09-12 19:17:25,526 INFO L226 Difference]: Without dead ends: 217 [2024-09-12 19:17:25,526 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:17:25,527 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 59 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:25,528 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 126 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:25,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-12 19:17:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 205. [2024-09-12 19:17:25,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 148 states have (on average 1.3986486486486487) internal successors, (207), 170 states have internal predecessors, (207), 29 states have call successors, (29), 8 states have call predecessors, (29), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 19:17:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 263 transitions. [2024-09-12 19:17:25,575 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 263 transitions. Word has length 47 [2024-09-12 19:17:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:25,575 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 263 transitions. [2024-09-12 19:17:25,575 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:25,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 263 transitions. [2024-09-12 19:17:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:17:25,580 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:25,580 INFO L216 NwaCegarLoop]: trace histogram [6, 5, 5, 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 19:17:25,597 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:25,780 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:17:25,781 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:25,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:25,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2028607700, now seen corresponding path program 1 times [2024-09-12 19:17:25,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:25,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38944908] [2024-09-12 19:17:25,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:25,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:25,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186069662] [2024-09-12 19:17:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:25,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:25,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:25,798 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 19:17:25,800 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 19:17:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:25,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:17:25,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:17:25,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-09-12 19:17:26,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:26,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38944908] [2024-09-12 19:17:26,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:26,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186069662] [2024-09-12 19:17:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186069662] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:26,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:26,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:17:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864499915] [2024-09-12 19:17:26,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:26,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:17:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:26,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:17:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:17:26,097 INFO L87 Difference]: Start difference. First operand 205 states and 263 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:26,682 INFO L93 Difference]: Finished difference Result 215 states and 276 transitions. [2024-09-12 19:17:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:17:26,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2024-09-12 19:17:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:26,684 INFO L225 Difference]: With dead ends: 215 [2024-09-12 19:17:26,684 INFO L226 Difference]: Without dead ends: 213 [2024-09-12 19:17:26,685 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:17:26,685 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 13 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:26,685 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 196 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:17:26,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-09-12 19:17:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 209. [2024-09-12 19:17:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 151 states have (on average 1.390728476821192) internal successors, (210), 173 states have internal predecessors, (210), 29 states have call successors, (29), 9 states have call predecessors, (29), 8 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 19:17:26,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 266 transitions. [2024-09-12 19:17:26,732 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 266 transitions. Word has length 51 [2024-09-12 19:17:26,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:26,732 INFO L474 AbstractCegarLoop]: Abstraction has 209 states and 266 transitions. [2024-09-12 19:17:26,733 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:17:26,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 266 transitions. [2024-09-12 19:17:26,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:17:26,734 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:26,734 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] [2024-09-12 19:17:26,751 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:17:26,938 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 19:17:26,939 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:26,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:26,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1407841698, now seen corresponding path program 1 times [2024-09-12 19:17:26,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:26,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360058042] [2024-09-12 19:17:26,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:26,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:17:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,107 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 19:17:27,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:27,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360058042] [2024-09-12 19:17:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360058042] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:27,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:27,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:17:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380451115] [2024-09-12 19:17:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:27,109 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:17:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:17:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:17:27,110 INFO L87 Difference]: Start difference. First operand 209 states and 266 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:27,580 INFO L93 Difference]: Finished difference Result 220 states and 276 transitions. [2024-09-12 19:17:27,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:17:27,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2024-09-12 19:17:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:27,583 INFO L225 Difference]: With dead ends: 220 [2024-09-12 19:17:27,583 INFO L226 Difference]: Without dead ends: 219 [2024-09-12 19:17:27,583 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:17:27,584 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 96 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:27,584 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 306 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:17:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-09-12 19:17:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 209. [2024-09-12 19:17:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 151 states have (on average 1.3841059602649006) internal successors, (209), 173 states have internal predecessors, (209), 29 states have call successors, (29), 9 states have call predecessors, (29), 8 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 19:17:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 265 transitions. [2024-09-12 19:17:27,623 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 265 transitions. Word has length 51 [2024-09-12 19:17:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:27,623 INFO L474 AbstractCegarLoop]: Abstraction has 209 states and 265 transitions. [2024-09-12 19:17:27,623 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:27,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 265 transitions. [2024-09-12 19:17:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:17:27,624 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:27,624 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] [2024-09-12 19:17:27,624 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:17:27,625 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:27,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:27,625 INFO L85 PathProgramCache]: Analyzing trace with hash 693419815, now seen corresponding path program 1 times [2024-09-12 19:17:27,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:27,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998636486] [2024-09-12 19:17:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:27,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,712 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,717 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:17:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,724 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 19:17:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:27,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998636486] [2024-09-12 19:17:27,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998636486] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:27,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:17:27,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746283792] [2024-09-12 19:17:27,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:27,726 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:27,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:27,727 INFO L87 Difference]: Start difference. First operand 209 states and 265 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:27,846 INFO L93 Difference]: Finished difference Result 216 states and 273 transitions. [2024-09-12 19:17:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 52 [2024-09-12 19:17:27,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:27,848 INFO L225 Difference]: With dead ends: 216 [2024-09-12 19:17:27,848 INFO L226 Difference]: Without dead ends: 215 [2024-09-12 19:17:27,849 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:17:27,849 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 6 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:27,851 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 178 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-09-12 19:17:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2024-09-12 19:17:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 177 states have internal predecessors, (213), 29 states have call successors, (29), 9 states have call predecessors, (29), 8 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-09-12 19:17:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 269 transitions. [2024-09-12 19:17:27,892 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 269 transitions. Word has length 52 [2024-09-12 19:17:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:27,893 INFO L474 AbstractCegarLoop]: Abstraction has 213 states and 269 transitions. [2024-09-12 19:17:27,893 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:27,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 269 transitions. [2024-09-12 19:17:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:17:27,895 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:27,895 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] [2024-09-12 19:17:27,895 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:17:27,896 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:27,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash 237727803, now seen corresponding path program 1 times [2024-09-12 19:17:27,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:27,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356131725] [2024-09-12 19:17:27,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:27,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,968 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:17:27,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356131725] [2024-09-12 19:17:27,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356131725] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647282170] [2024-09-12 19:17:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:27,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:27,979 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 19:17:27,980 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 19:17:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:17:28,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:28,053 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 19:17:28,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:28,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647282170] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:28,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:28,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:17:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517934285] [2024-09-12 19:17:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:28,055 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:28,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:28,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:28,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:28,056 INFO L87 Difference]: Start difference. First operand 213 states and 269 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (9), 1 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 19:17:28,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:28,169 INFO L93 Difference]: Finished difference Result 301 states and 398 transitions. [2024-09-12 19:17:28,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:28,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (9), 1 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 54 [2024-09-12 19:17:28,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:28,172 INFO L225 Difference]: With dead ends: 301 [2024-09-12 19:17:28,173 INFO L226 Difference]: Without dead ends: 299 [2024-09-12 19:17:28,173 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 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 19:17:28,173 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 52 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:28,174 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 150 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-09-12 19:17:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 274. [2024-09-12 19:17:28,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 209 states have (on average 1.3971291866028708) internal successors, (292), 230 states have internal predecessors, (292), 37 states have call successors, (37), 9 states have call predecessors, (37), 8 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 19:17:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 364 transitions. [2024-09-12 19:17:28,251 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 364 transitions. Word has length 54 [2024-09-12 19:17:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:28,251 INFO L474 AbstractCegarLoop]: Abstraction has 274 states and 364 transitions. [2024-09-12 19:17:28,252 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (9), 1 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 19:17:28,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 364 transitions. [2024-09-12 19:17:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:17:28,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:28,253 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] [2024-09-12 19:17:28,269 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:17:28,453 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:28,454 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:28,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:28,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1220372629, now seen corresponding path program 1 times [2024-09-12 19:17:28,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:28,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030037395] [2024-09-12 19:17:28,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:28,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,498 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,500 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,520 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,526 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 19:17:28,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:28,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030037395] [2024-09-12 19:17:28,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030037395] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:28,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624270918] [2024-09-12 19:17:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:28,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:28,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:28,529 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 19:17:28,531 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 19:17:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:28,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:17:28,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:28,610 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 19:17:28,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:28,670 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 19:17:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624270918] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:28,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:17:28,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:17:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548123745] [2024-09-12 19:17:28,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:28,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:17:28,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:17:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:28,674 INFO L87 Difference]: Start difference. First operand 274 states and 364 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-09-12 19:17:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:28,904 INFO L93 Difference]: Finished difference Result 432 states and 582 transitions. [2024-09-12 19:17:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:17:28,904 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), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 55 [2024-09-12 19:17:28,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:28,907 INFO L225 Difference]: With dead ends: 432 [2024-09-12 19:17:28,907 INFO L226 Difference]: Without dead ends: 430 [2024-09-12 19:17:28,908 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:28,908 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 145 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:28,908 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 246 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-09-12 19:17:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 374. [2024-09-12 19:17:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 293 states have (on average 1.4095563139931742) internal successors, (413), 314 states have internal predecessors, (413), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:17:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 517 transitions. [2024-09-12 19:17:28,977 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 517 transitions. Word has length 55 [2024-09-12 19:17:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:28,978 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 517 transitions. [2024-09-12 19:17:28,978 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), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-09-12 19:17:28,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 517 transitions. [2024-09-12 19:17:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:17:28,979 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:28,979 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] [2024-09-12 19:17:28,996 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 19:17:29,180 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:29,180 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:29,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:29,181 INFO L85 PathProgramCache]: Analyzing trace with hash 736206546, now seen corresponding path program 1 times [2024-09-12 19:17:29,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:29,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331912091] [2024-09-12 19:17:29,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:29,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:29,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860993757] [2024-09-12 19:17:29,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:29,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:29,195 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 19:17:29,197 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 19:17:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:29,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-09-12 19:17:29,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:29,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:29,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331912091] [2024-09-12 19:17:29,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:29,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860993757] [2024-09-12 19:17:29,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860993757] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:29,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:29,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:17:29,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572458332] [2024-09-12 19:17:29,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:29,347 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:29,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:29,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:29,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:17:29,348 INFO L87 Difference]: Start difference. First operand 374 states and 517 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:17:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:29,561 INFO L93 Difference]: Finished difference Result 393 states and 542 transitions. [2024-09-12 19:17:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:29,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2024-09-12 19:17:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:29,564 INFO L225 Difference]: With dead ends: 393 [2024-09-12 19:17:29,564 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 19:17:29,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 19:17:29,565 INFO L434 NwaCegarLoop]: 59 mSDtfsCounter, 106 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:29,566 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 114 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 19:17:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 370. [2024-09-12 19:17:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 289 states have (on average 1.4013840830449826) internal successors, (405), 310 states have internal predecessors, (405), 53 states have call successors, (53), 9 states have call predecessors, (53), 8 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:17:29,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 509 transitions. [2024-09-12 19:17:29,642 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 509 transitions. Word has length 58 [2024-09-12 19:17:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:29,644 INFO L474 AbstractCegarLoop]: Abstraction has 370 states and 509 transitions. [2024-09-12 19:17:29,645 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:17:29,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 509 transitions. [2024-09-12 19:17:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 19:17:29,646 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:29,646 INFO L216 NwaCegarLoop]: trace histogram [7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:29,663 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:17:29,846 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:17:29,846 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:29,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1547084574, now seen corresponding path program 1 times [2024-09-12 19:17:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:29,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053460025] [2024-09-12 19:17:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,949 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:17:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 19:17:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:17:29,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:29,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053460025] [2024-09-12 19:17:29,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053460025] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:29,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:29,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:17:29,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122528941] [2024-09-12 19:17:29,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:29,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:29,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:29,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:29,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:29,962 INFO L87 Difference]: Start difference. First operand 370 states and 509 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 19:17:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:30,242 INFO L93 Difference]: Finished difference Result 382 states and 521 transitions. [2024-09-12 19:17:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 61 [2024-09-12 19:17:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:30,245 INFO L225 Difference]: With dead ends: 382 [2024-09-12 19:17:30,245 INFO L226 Difference]: Without dead ends: 360 [2024-09-12 19:17:30,245 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 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 19:17:30,246 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 5 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:30,246 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 221 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:17:30,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-09-12 19:17:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-09-12 19:17:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 281 states have (on average 1.4092526690391458) internal successors, (396), 302 states have internal predecessors, (396), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 496 transitions. [2024-09-12 19:17:30,311 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 496 transitions. Word has length 61 [2024-09-12 19:17:30,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:30,312 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 496 transitions. [2024-09-12 19:17:30,312 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 19:17:30,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:30,312 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 496 transitions. [2024-09-12 19:17:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:17:30,318 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:30,318 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2024-09-12 19:17:30,319 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:17:30,319 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:30,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2080007857, now seen corresponding path program 2 times [2024-09-12 19:17:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034739997] [2024-09-12 19:17:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:30,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501475443] [2024-09-12 19:17:30,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:17:30,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:30,339 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 19:17:30,340 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 19:17:30,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:17:30,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:30,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:17:30,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:30,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:30,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:30,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034739997] [2024-09-12 19:17:30,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:30,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501475443] [2024-09-12 19:17:30,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501475443] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:30,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:30,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:17:30,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628009984] [2024-09-12 19:17:30,776 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:30,776 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:30,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:30,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:30,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:30,777 INFO L87 Difference]: Start difference. First operand 360 states and 496 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:17:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:30,960 INFO L93 Difference]: Finished difference Result 455 states and 629 transitions. [2024-09-12 19:17:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:30,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 70 [2024-09-12 19:17:30,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:30,964 INFO L225 Difference]: With dead ends: 455 [2024-09-12 19:17:30,964 INFO L226 Difference]: Without dead ends: 451 [2024-09-12 19:17:30,964 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:30,965 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 57 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:30,967 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 213 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:30,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-09-12 19:17:31,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 360. [2024-09-12 19:17:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 281 states have (on average 1.402135231316726) internal successors, (394), 302 states have internal predecessors, (394), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 494 transitions. [2024-09-12 19:17:31,047 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 494 transitions. Word has length 70 [2024-09-12 19:17:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:31,047 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 494 transitions. [2024-09-12 19:17:31,048 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:17:31,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 494 transitions. [2024-09-12 19:17:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 19:17:31,049 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:31,049 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 19:17:31,064 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 19:17:31,249 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:17:31,249 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:31,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:31,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2127022106, now seen corresponding path program 1 times [2024-09-12 19:17:31,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:31,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630897395] [2024-09-12 19:17:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-12 19:17:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:31,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630897395] [2024-09-12 19:17:31,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630897395] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:31,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:31,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:17:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550863376] [2024-09-12 19:17:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:31,300 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:17:31,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:17:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:17:31,301 INFO L87 Difference]: Start difference. First operand 360 states and 494 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:17:31,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:31,437 INFO L93 Difference]: Finished difference Result 360 states and 494 transitions. [2024-09-12 19:17:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:17:31,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2024-09-12 19:17:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:31,439 INFO L225 Difference]: With dead ends: 360 [2024-09-12 19:17:31,439 INFO L226 Difference]: Without dead ends: 359 [2024-09-12 19:17:31,439 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 19:17:31,440 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:31,440 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-09-12 19:17:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-09-12 19:17:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 281 states have (on average 1.3807829181494662) internal successors, (388), 301 states have internal predecessors, (388), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:31,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 488 transitions. [2024-09-12 19:17:31,512 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 488 transitions. Word has length 77 [2024-09-12 19:17:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:31,512 INFO L474 AbstractCegarLoop]: Abstraction has 359 states and 488 transitions. [2024-09-12 19:17:31,512 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:17:31,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:31,513 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 488 transitions. [2024-09-12 19:17:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 19:17:31,513 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:31,514 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:31,514 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:17:31,514 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:31,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1513175965, now seen corresponding path program 1 times [2024-09-12 19:17:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:31,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449996608] [2024-09-12 19:17:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:31,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:31,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449996608] [2024-09-12 19:17:31,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449996608] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:31,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389795098] [2024-09-12 19:17:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:31,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:31,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:31,649 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 19:17:31,650 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 19:17:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:31,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:17:31,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:31,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:31,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389795098] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:31,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:31,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 19:17:31,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135441202] [2024-09-12 19:17:31,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:31,832 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:31,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:31,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:31,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:17:31,833 INFO L87 Difference]: Start difference. First operand 359 states and 488 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:17:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:32,012 INFO L93 Difference]: Finished difference Result 384 states and 513 transitions. [2024-09-12 19:17:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:32,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 78 [2024-09-12 19:17:32,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:32,015 INFO L225 Difference]: With dead ends: 384 [2024-09-12 19:17:32,015 INFO L226 Difference]: Without dead ends: 383 [2024-09-12 19:17:32,015 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:17:32,015 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 127 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:32,016 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 170 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-09-12 19:17:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 359. [2024-09-12 19:17:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 281 states have (on average 1.3701067615658362) internal successors, (385), 301 states have internal predecessors, (385), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 485 transitions. [2024-09-12 19:17:32,089 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 485 transitions. Word has length 78 [2024-09-12 19:17:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:32,090 INFO L474 AbstractCegarLoop]: Abstraction has 359 states and 485 transitions. [2024-09-12 19:17:32,090 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:17:32,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 485 transitions. [2024-09-12 19:17:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 19:17:32,092 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:32,092 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:32,109 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 19:17:32,292 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:32,293 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:32,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash -336185220, now seen corresponding path program 1 times [2024-09-12 19:17:32,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:32,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776667484] [2024-09-12 19:17:32,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:32,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:32,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:32,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776667484] [2024-09-12 19:17:32,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776667484] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:32,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635337887] [2024-09-12 19:17:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:32,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:32,458 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 19:17:32,460 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 19:17:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:32,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:32,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:32,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:32,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635337887] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:32,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:32,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:17:32,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097730095] [2024-09-12 19:17:32,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:32,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:32,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:32,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:32,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:32,639 INFO L87 Difference]: Start difference. First operand 359 states and 485 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:17:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:32,801 INFO L93 Difference]: Finished difference Result 359 states and 485 transitions. [2024-09-12 19:17:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:32,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 79 [2024-09-12 19:17:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:32,804 INFO L225 Difference]: With dead ends: 359 [2024-09-12 19:17:32,804 INFO L226 Difference]: Without dead ends: 358 [2024-09-12 19:17:32,805 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:32,805 INFO L434 NwaCegarLoop]: 62 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:32,806 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 120 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-09-12 19:17:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-09-12 19:17:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 281 states have (on average 1.3487544483985765) internal successors, (379), 300 states have internal predecessors, (379), 51 states have call successors, (51), 9 states have call predecessors, (51), 8 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 479 transitions. [2024-09-12 19:17:32,884 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 479 transitions. Word has length 79 [2024-09-12 19:17:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:32,884 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 479 transitions. [2024-09-12 19:17:32,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:17:32,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 479 transitions. [2024-09-12 19:17:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 19:17:32,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:32,886 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 19:17:32,902 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 19:17:33,086 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:17:33,087 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:33,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1831807105, now seen corresponding path program 1 times [2024-09-12 19:17:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:33,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444061416] [2024-09-12 19:17:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,198 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,201 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,221 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,225 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:33,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444061416] [2024-09-12 19:17:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444061416] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841131670] [2024-09-12 19:17:33,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:33,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:33,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:33,237 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 19:17:33,239 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 19:17:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:33,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:17:33,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:33,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:33,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841131670] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:33,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:17:33,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2024-09-12 19:17:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242583466] [2024-09-12 19:17:33,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:33,740 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:17:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:33,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:17:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:17:33,741 INFO L87 Difference]: Start difference. First operand 358 states and 479 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 10 states have internal predecessors, (98), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2024-09-12 19:17:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:34,228 INFO L93 Difference]: Finished difference Result 502 states and 657 transitions. [2024-09-12 19:17:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:17:34,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 10 states have internal predecessors, (98), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 80 [2024-09-12 19:17:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:34,231 INFO L225 Difference]: With dead ends: 502 [2024-09-12 19:17:34,231 INFO L226 Difference]: Without dead ends: 430 [2024-09-12 19:17:34,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:17:34,232 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 73 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:34,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 328 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:17:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-09-12 19:17:34,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 406. [2024-09-12 19:17:34,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.3219814241486068) internal successors, (427), 342 states have internal predecessors, (427), 57 states have call successors, (57), 9 states have call predecessors, (57), 8 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:17:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 539 transitions. [2024-09-12 19:17:34,324 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 539 transitions. Word has length 80 [2024-09-12 19:17:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:34,325 INFO L474 AbstractCegarLoop]: Abstraction has 406 states and 539 transitions. [2024-09-12 19:17:34,325 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 10 states have internal predecessors, (98), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2024-09-12 19:17:34,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 539 transitions. [2024-09-12 19:17:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:17:34,326 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:34,326 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 19:17:34,343 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 19:17:34,527 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:34,527 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:34,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash 569966177, now seen corresponding path program 1 times [2024-09-12 19:17:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910051589] [2024-09-12 19:17:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:34,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266093901] [2024-09-12 19:17:34,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:34,561 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 19:17:34,562 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 19:17:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:34,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:34,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-12 19:17:34,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:34,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910051589] [2024-09-12 19:17:34,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266093901] [2024-09-12 19:17:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266093901] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:34,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:34,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:17:34,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711353431] [2024-09-12 19:17:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:34,688 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:34,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:34,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:34,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:34,689 INFO L87 Difference]: Start difference. First operand 406 states and 539 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:17:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:34,910 INFO L93 Difference]: Finished difference Result 406 states and 539 transitions. [2024-09-12 19:17:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:17:34,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2024-09-12 19:17:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:34,914 INFO L225 Difference]: With dead ends: 406 [2024-09-12 19:17:34,914 INFO L226 Difference]: Without dead ends: 405 [2024-09-12 19:17:34,914 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:17:34,915 INFO L434 NwaCegarLoop]: 50 mSDtfsCounter, 56 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:34,915 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 106 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-09-12 19:17:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-09-12 19:17:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 341 states have internal predecessors, (417), 57 states have call successors, (57), 9 states have call predecessors, (57), 8 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:17:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 529 transitions. [2024-09-12 19:17:35,022 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 529 transitions. Word has length 82 [2024-09-12 19:17:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:35,023 INFO L474 AbstractCegarLoop]: Abstraction has 405 states and 529 transitions. [2024-09-12 19:17:35,023 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:17:35,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 529 transitions. [2024-09-12 19:17:35,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 19:17:35,024 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:35,024 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:35,040 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:35,225 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:17:35,225 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:35,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 489082392, now seen corresponding path program 1 times [2024-09-12 19:17:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:35,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000848818] [2024-09-12 19:17:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:35,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:35,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405359846] [2024-09-12 19:17:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:35,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:35,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:35,244 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 19:17:35,247 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 19:17:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:35,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-12 19:17:35,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:35,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000848818] [2024-09-12 19:17:35,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405359846] [2024-09-12 19:17:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405359846] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:35,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:35,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:17:35,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501646347] [2024-09-12 19:17:35,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:35,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:35,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:35,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:17:35,361 INFO L87 Difference]: Start difference. First operand 405 states and 529 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:17:35,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:35,501 INFO L93 Difference]: Finished difference Result 405 states and 529 transitions. [2024-09-12 19:17:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 83 [2024-09-12 19:17:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:35,504 INFO L225 Difference]: With dead ends: 405 [2024-09-12 19:17:35,504 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 19:17:35,504 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 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 19:17:35,505 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 52 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:35,505 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 72 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:17:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 19:17:35,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-09-12 19:17:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 323 states have (on average 1.2600619195046439) internal successors, (407), 340 states have internal predecessors, (407), 57 states have call successors, (57), 9 states have call predecessors, (57), 8 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:17:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 519 transitions. [2024-09-12 19:17:35,603 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 519 transitions. Word has length 83 [2024-09-12 19:17:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:35,603 INFO L474 AbstractCegarLoop]: Abstraction has 404 states and 519 transitions. [2024-09-12 19:17:35,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:17:35,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 519 transitions. [2024-09-12 19:17:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:17:35,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:35,605 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:35,621 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:35,805 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:17:35,806 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:35,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2018314941, now seen corresponding path program 1 times [2024-09-12 19:17:35,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:35,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380633196] [2024-09-12 19:17:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:35,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-12 19:17:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380633196] [2024-09-12 19:17:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380633196] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:35,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:17:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763825421] [2024-09-12 19:17:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:35,872 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:35,873 INFO L87 Difference]: Start difference. First operand 404 states and 519 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:17:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:36,352 INFO L93 Difference]: Finished difference Result 415 states and 529 transitions. [2024-09-12 19:17:36,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:17:36,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 84 [2024-09-12 19:17:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:36,354 INFO L225 Difference]: With dead ends: 415 [2024-09-12 19:17:36,355 INFO L226 Difference]: Without dead ends: 414 [2024-09-12 19:17:36,355 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:17:36,355 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 54 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:36,356 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 195 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:17:36,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-09-12 19:17:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 403. [2024-09-12 19:17:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 323 states have (on average 1.238390092879257) internal successors, (400), 339 states have internal predecessors, (400), 57 states have call successors, (57), 9 states have call predecessors, (57), 8 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:17:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 512 transitions. [2024-09-12 19:17:36,474 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 512 transitions. Word has length 84 [2024-09-12 19:17:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:36,474 INFO L474 AbstractCegarLoop]: Abstraction has 403 states and 512 transitions. [2024-09-12 19:17:36,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:17:36,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 512 transitions. [2024-09-12 19:17:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:17:36,476 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:36,476 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 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 19:17:36,476 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-12 19:17:36,477 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:36,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:36,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1856746362, now seen corresponding path program 1 times [2024-09-12 19:17:36,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:36,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78423811] [2024-09-12 19:17:36,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:36,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,609 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,613 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:36,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:36,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78423811] [2024-09-12 19:17:36,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78423811] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:36,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777709940] [2024-09-12 19:17:36,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:36,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:36,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:36,616 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 19:17:36,618 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 19:17:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:36,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:17:36,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:36,878 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:17:36,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:41,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777709940] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:41,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:41,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 19:17:41,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373898976] [2024-09-12 19:17:41,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:41,286 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:17:41,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:41,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:17:41,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=221, Unknown=1, NotChecked=0, Total=272 [2024-09-12 19:17:41,287 INFO L87 Difference]: Start difference. First operand 403 states and 512 transitions. Second operand has 14 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 19:17:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:42,409 INFO L93 Difference]: Finished difference Result 600 states and 792 transitions. [2024-09-12 19:17:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:17:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 85 [2024-09-12 19:17:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:42,411 INFO L225 Difference]: With dead ends: 600 [2024-09-12 19:17:42,412 INFO L226 Difference]: Without dead ends: 596 [2024-09-12 19:17:42,412 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=226, Invalid=765, Unknown=1, NotChecked=0, Total=992 [2024-09-12 19:17:42,413 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 368 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:42,413 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 385 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:17:42,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-09-12 19:17:42,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 450. [2024-09-12 19:17:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 366 states have (on average 1.2377049180327868) internal successors, (453), 382 states have internal predecessors, (453), 61 states have call successors, (61), 9 states have call predecessors, (61), 8 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:17:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 573 transitions. [2024-09-12 19:17:42,536 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 573 transitions. Word has length 85 [2024-09-12 19:17:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:42,536 INFO L474 AbstractCegarLoop]: Abstraction has 450 states and 573 transitions. [2024-09-12 19:17:42,536 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-09-12 19:17:42,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 573 transitions. [2024-09-12 19:17:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 19:17:42,537 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:42,537 INFO L216 NwaCegarLoop]: trace histogram [9, 8, 8, 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 19:17:42,554 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 19:17:42,741 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:42,742 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:42,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash 43945702, now seen corresponding path program 1 times [2024-09-12 19:17:42,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:42,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440567657] [2024-09-12 19:17:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:42,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:42,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262126217] [2024-09-12 19:17:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:42,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:42,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:42,763 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 19:17:42,765 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 19:17:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:42,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:17:42,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:43,292 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-09-12 19:17:43,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-09-12 19:17:45,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:45,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440567657] [2024-09-12 19:17:45,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:45,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262126217] [2024-09-12 19:17:45,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262126217] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:45,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:45,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-09-12 19:17:45,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476955540] [2024-09-12 19:17:45,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:45,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:17:45,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:45,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:17:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:17:45,139 INFO L87 Difference]: Start difference. First operand 450 states and 573 transitions. Second operand has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 20 states have internal predecessors, (88), 8 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-09-12 19:17:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:47,342 INFO L93 Difference]: Finished difference Result 507 states and 639 transitions. [2024-09-12 19:17:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 19:17:47,342 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 20 states have internal predecessors, (88), 8 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 89 [2024-09-12 19:17:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:47,345 INFO L225 Difference]: With dead ends: 507 [2024-09-12 19:17:47,345 INFO L226 Difference]: Without dead ends: 505 [2024-09-12 19:17:47,346 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:17:47,346 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 138 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:47,346 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 353 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 19:17:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-09-12 19:17:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 498. [2024-09-12 19:17:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 403 states have (on average 1.2258064516129032) internal successors, (494), 423 states have internal predecessors, (494), 67 states have call successors, (67), 14 states have call predecessors, (67), 13 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-09-12 19:17:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 626 transitions. [2024-09-12 19:17:47,544 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 626 transitions. Word has length 89 [2024-09-12 19:17:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:47,545 INFO L474 AbstractCegarLoop]: Abstraction has 498 states and 626 transitions. [2024-09-12 19:17:47,545 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 20 states have internal predecessors, (88), 8 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-09-12 19:17:47,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:47,547 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 626 transitions. [2024-09-12 19:17:47,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 19:17:47,548 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:47,548 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:47,565 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:47,751 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:17:47,752 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:47,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:47,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1579711326, now seen corresponding path program 3 times [2024-09-12 19:17:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:47,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913221565] [2024-09-12 19:17:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:47,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:47,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215991536] [2024-09-12 19:17:47,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:17:47,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:47,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:47,772 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 19:17:47,775 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 19:17:47,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:17:47,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:47,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:47,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-09-12 19:17:47,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:47,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:47,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913221565] [2024-09-12 19:17:47,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:47,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215991536] [2024-09-12 19:17:47,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215991536] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:47,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:47,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:17:47,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394142633] [2024-09-12 19:17:47,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:47,859 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:17:47,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:47,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:17:47,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:17:47,860 INFO L87 Difference]: Start difference. First operand 498 states and 626 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:48,084 INFO L93 Difference]: Finished difference Result 498 states and 626 transitions. [2024-09-12 19:17:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:17:48,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2024-09-12 19:17:48,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:48,087 INFO L225 Difference]: With dead ends: 498 [2024-09-12 19:17:48,088 INFO L226 Difference]: Without dead ends: 495 [2024-09-12 19:17:48,088 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 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 19:17:48,088 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 61 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:48,089 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 80 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:17:48,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-09-12 19:17:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 414. [2024-09-12 19:17:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 333 states have (on average 1.1801801801801801) internal successors, (393), 349 states have internal predecessors, (393), 56 states have call successors, (56), 14 states have call predecessors, (56), 13 states have return successors, (54), 50 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 19:17:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 503 transitions. [2024-09-12 19:17:48,258 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 503 transitions. Word has length 93 [2024-09-12 19:17:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:48,258 INFO L474 AbstractCegarLoop]: Abstraction has 414 states and 503 transitions. [2024-09-12 19:17:48,259 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:17:48,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 503 transitions. [2024-09-12 19:17:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 19:17:48,260 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:48,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:48,276 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:48,461 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:17:48,461 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:48,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash 645765421, now seen corresponding path program 2 times [2024-09-12 19:17:48,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:48,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330347339] [2024-09-12 19:17:48,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:48,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:48,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362364971] [2024-09-12 19:17:48,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:17:48,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:48,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:48,479 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 19:17:48,481 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 19:17:48,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:17:48,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:48,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:17:48,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:48,751 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 20 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 19:17:48,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 20 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 19:17:50,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:50,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330347339] [2024-09-12 19:17:50,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:50,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362364971] [2024-09-12 19:17:50,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362364971] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:50,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:50,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2024-09-12 19:17:50,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721547731] [2024-09-12 19:17:50,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:50,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:17:50,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:50,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:17:50,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:17:50,164 INFO L87 Difference]: Start difference. First operand 414 states and 503 transitions. Second operand has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 7 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 19:17:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:52,023 INFO L93 Difference]: Finished difference Result 450 states and 532 transitions. [2024-09-12 19:17:52,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:17:52,023 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 7 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 96 [2024-09-12 19:17:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:52,025 INFO L225 Difference]: With dead ends: 450 [2024-09-12 19:17:52,025 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 19:17:52,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:17:52,026 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 29 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:52,026 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 278 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-12 19:17:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 19:17:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-09-12 19:17:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 272 states have (on average 1.161764705882353) internal successors, (316), 287 states have internal predecessors, (316), 49 states have call successors, (49), 17 states have call predecessors, (49), 16 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 19:17:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 412 transitions. [2024-09-12 19:17:52,177 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 412 transitions. Word has length 96 [2024-09-12 19:17:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:52,178 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 412 transitions. [2024-09-12 19:17:52,178 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 17 states have internal predecessors, (92), 7 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-09-12 19:17:52,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 412 transitions. [2024-09-12 19:17:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:17:52,179 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:52,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:52,196 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:17:52,383 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:17:52,384 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:52,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash 844039737, now seen corresponding path program 1 times [2024-09-12 19:17:52,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:52,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407555435] [2024-09-12 19:17:52,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:52,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:52,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007066887] [2024-09-12 19:17:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:52,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:52,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:52,404 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 19:17:52,406 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 19:17:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:52,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:17:52,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 19:17:52,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:53,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407555435] [2024-09-12 19:17:53,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007066887] [2024-09-12 19:17:53,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007066887] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:53,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:53,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:17:53,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273484352] [2024-09-12 19:17:53,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:53,086 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:17:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:53,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:17:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:17:53,087 INFO L87 Difference]: Start difference. First operand 349 states and 412 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (13), 1 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 19:17:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:53,505 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2024-09-12 19:17:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:17:53,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (13), 1 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 99 [2024-09-12 19:17:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:53,508 INFO L225 Difference]: With dead ends: 352 [2024-09-12 19:17:53,508 INFO L226 Difference]: Without dead ends: 351 [2024-09-12 19:17:53,508 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:17:53,509 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:53,509 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 264 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:17:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-09-12 19:17:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2024-09-12 19:17:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 272 states have (on average 1.1580882352941178) internal successors, (315), 287 states have internal predecessors, (315), 49 states have call successors, (49), 17 states have call predecessors, (49), 16 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 19:17:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 411 transitions. [2024-09-12 19:17:53,631 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 411 transitions. Word has length 99 [2024-09-12 19:17:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:53,631 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 411 transitions. [2024-09-12 19:17:53,631 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (13), 1 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 19:17:53,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 411 transitions. [2024-09-12 19:17:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:17:53,633 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:53,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:53,648 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 19:17:53,833 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:53,833 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:53,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash -626627429, now seen corresponding path program 1 times [2024-09-12 19:17:53,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:53,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401985013] [2024-09-12 19:17:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,944 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,946 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 19:17:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:17:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-09-12 19:17:53,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:53,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401985013] [2024-09-12 19:17:53,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401985013] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:53,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:17:53,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:17:53,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618666638] [2024-09-12 19:17:53,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:53,952 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:17:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:53,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:17:53,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:17:53,953 INFO L87 Difference]: Start difference. First operand 349 states and 411 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:17:54,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:54,436 INFO L93 Difference]: Finished difference Result 356 states and 418 transitions. [2024-09-12 19:17:54,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:17:54,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2024-09-12 19:17:54,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:54,439 INFO L225 Difference]: With dead ends: 356 [2024-09-12 19:17:54,439 INFO L226 Difference]: Without dead ends: 355 [2024-09-12 19:17:54,439 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:17:54,440 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 21 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:54,440 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 220 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:17:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-09-12 19:17:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 348. [2024-09-12 19:17:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 272 states have (on average 1.150735294117647) internal successors, (313), 286 states have internal predecessors, (313), 49 states have call successors, (49), 17 states have call predecessors, (49), 16 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-09-12 19:17:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2024-09-12 19:17:54,590 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 101 [2024-09-12 19:17:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:54,590 INFO L474 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2024-09-12 19:17:54,590 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:17:54,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2024-09-12 19:17:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:17:54,592 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:54,592 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:54,592 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-09-12 19:17:54,592 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:54,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash -2063778163, now seen corresponding path program 1 times [2024-09-12 19:17:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783274208] [2024-09-12 19:17:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,660 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,665 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,669 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,670 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:17:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,672 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:17:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:17:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:17:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,683 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:17:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 19:17:54,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:54,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783274208] [2024-09-12 19:17:54,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783274208] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:54,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108383659] [2024-09-12 19:17:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:54,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:54,688 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 19:17:54,690 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 19:17:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:54,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:17:54,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 19:17:54,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-09-12 19:17:54,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108383659] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:54,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:17:54,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:17:54,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285792167] [2024-09-12 19:17:54,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:54,906 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:17:54,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:54,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:17:54,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:17:54,907 INFO L87 Difference]: Start difference. First operand 348 states and 409 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 19:17:55,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:55,367 INFO L93 Difference]: Finished difference Result 727 states and 887 transitions. [2024-09-12 19:17:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:17:55,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 103 [2024-09-12 19:17:55,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:55,370 INFO L225 Difference]: With dead ends: 727 [2024-09-12 19:17:55,370 INFO L226 Difference]: Without dead ends: 726 [2024-09-12 19:17:55,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:17:55,371 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 224 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:55,371 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 371 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:17:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-09-12 19:17:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 394. [2024-09-12 19:17:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 306 states have (on average 1.1601307189542485) internal successors, (355), 320 states have internal predecessors, (355), 61 states have call successors, (61), 17 states have call predecessors, (61), 16 states have return successors, (59), 56 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:17:55,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2024-09-12 19:17:55,580 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 103 [2024-09-12 19:17:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:55,581 INFO L474 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2024-09-12 19:17:55,581 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2024-09-12 19:17:55,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2024-09-12 19:17:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 19:17:55,582 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:55,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:55,599 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:17:55,786 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:55,786 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:55,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 953535030, now seen corresponding path program 1 times [2024-09-12 19:17:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:55,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336620157] [2024-09-12 19:17:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:55,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885997283] [2024-09-12 19:17:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:55,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:55,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:55,808 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 19:17:55,812 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 19:17:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:55,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:17:55,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 19 proven. 45 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 19:17:56,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:17:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 19 proven. 45 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-09-12 19:17:56,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336620157] [2024-09-12 19:17:56,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:17:56,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885997283] [2024-09-12 19:17:56,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885997283] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:17:56,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:17:56,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2024-09-12 19:17:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042592141] [2024-09-12 19:17:56,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:17:56,834 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:17:56,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:56,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:17:56,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:17:56,835 INFO L87 Difference]: Start difference. First operand 394 states and 475 transitions. Second operand has 22 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-09-12 19:17:58,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:58,441 INFO L93 Difference]: Finished difference Result 434 states and 519 transitions. [2024-09-12 19:17:58,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:17:58,441 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) Word has length 106 [2024-09-12 19:17:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:58,443 INFO L225 Difference]: With dead ends: 434 [2024-09-12 19:17:58,443 INFO L226 Difference]: Without dead ends: 432 [2024-09-12 19:17:58,444 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:17:58,444 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 188 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:58,445 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 345 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:17:58,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-09-12 19:17:58,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 397. [2024-09-12 19:17:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 308 states have (on average 1.1688311688311688) internal successors, (360), 323 states have internal predecessors, (360), 61 states have call successors, (61), 18 states have call predecessors, (61), 17 states have return successors, (59), 55 states have call predecessors, (59), 59 states have call successors, (59) [2024-09-12 19:17:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 480 transitions. [2024-09-12 19:17:58,633 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 480 transitions. Word has length 106 [2024-09-12 19:17:58,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:58,633 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 480 transitions. [2024-09-12 19:17:58,633 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.636363636363637) internal successors, (102), 21 states have internal predecessors, (102), 9 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (22), 6 states have call predecessors, (22), 7 states have call successors, (22) [2024-09-12 19:17:58,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 480 transitions. [2024-09-12 19:17:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 19:17:58,634 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:58,634 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 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 19:17:58,648 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:17:58,835 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:17:58,835 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:58,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:58,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1807044501, now seen corresponding path program 1 times [2024-09-12 19:17:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:58,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806148607] [2024-09-12 19:17:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:17:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:17:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:17:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,995 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:17:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,997 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:17:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:58,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:17:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:17:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:17:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:17:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,009 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:17:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:17:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:17:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 19:17:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,020 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 19:17:59,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:17:59,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806148607] [2024-09-12 19:17:59,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806148607] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:17:59,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582438427] [2024-09-12 19:17:59,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:59,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:59,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:59,023 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 19:17:59,024 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 19:17:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:17:59,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:17:59,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:17:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-09-12 19:17:59,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:17:59,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582438427] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:17:59,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:17:59,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-09-12 19:17:59,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094433569] [2024-09-12 19:17:59,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:17:59,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:17:59,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:17:59,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:17:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:17:59,305 INFO L87 Difference]: Start difference. First operand 397 states and 480 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 19:17:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:17:59,551 INFO L93 Difference]: Finished difference Result 494 states and 587 transitions. [2024-09-12 19:17:59,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:17:59,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 107 [2024-09-12 19:17:59,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:17:59,554 INFO L225 Difference]: With dead ends: 494 [2024-09-12 19:17:59,554 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 19:17:59,554 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:17:59,555 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:17:59,555 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 161 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:17:59,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 19:17:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 332. [2024-09-12 19:17:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 254 states have (on average 1.1574803149606299) internal successors, (294), 268 states have internal predecessors, (294), 51 states have call successors, (51), 17 states have call predecessors, (51), 16 states have return successors, (49), 46 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:17:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 394 transitions. [2024-09-12 19:17:59,717 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 394 transitions. Word has length 107 [2024-09-12 19:17:59,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:17:59,717 INFO L474 AbstractCegarLoop]: Abstraction has 332 states and 394 transitions. [2024-09-12 19:17:59,717 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-09-12 19:17:59,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 394 transitions. [2024-09-12 19:17:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:17:59,718 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:17:59,718 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:17:59,730 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 19:17:59,919 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:17:59,919 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:17:59,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:17:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash -910913141, now seen corresponding path program 2 times [2024-09-12 19:17:59,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:17:59,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982328142] [2024-09-12 19:17:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:17:59,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:17:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:17:59,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592328775] [2024-09-12 19:17:59,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:17:59,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:17:59,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:17:59,938 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 19:17:59,940 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 19:17:59,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:17:59,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:17:59,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:17:59,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 19:18:00,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:05,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:05,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982328142] [2024-09-12 19:18:05,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:05,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592328775] [2024-09-12 19:18:05,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592328775] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:05,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:05,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 19:18:05,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958581871] [2024-09-12 19:18:05,088 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:05,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:18:05,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:18:05,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=219, Unknown=1, NotChecked=0, Total=272 [2024-09-12 19:18:05,089 INFO L87 Difference]: Start difference. First operand 332 states and 394 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 19:18:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:05,664 INFO L93 Difference]: Finished difference Result 392 states and 472 transitions. [2024-09-12 19:18:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:18:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 108 [2024-09-12 19:18:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:05,666 INFO L225 Difference]: With dead ends: 392 [2024-09-12 19:18:05,666 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 19:18:05,666 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=74, Invalid=267, Unknown=1, NotChecked=0, Total=342 [2024-09-12 19:18:05,667 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 52 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:05,667 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 380 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:18:05,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 19:18:05,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 356. [2024-09-12 19:18:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 276 states have (on average 1.144927536231884) internal successors, (316), 290 states have internal predecessors, (316), 53 states have call successors, (53), 17 states have call predecessors, (53), 16 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:18:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 420 transitions. [2024-09-12 19:18:05,841 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 420 transitions. Word has length 108 [2024-09-12 19:18:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:05,841 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 420 transitions. [2024-09-12 19:18:05,841 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-09-12 19:18:05,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 420 transitions. [2024-09-12 19:18:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:18:05,842 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:05,842 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:05,854 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-09-12 19:18:06,042 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:18:06,042 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:06,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash 744239259, now seen corresponding path program 1 times [2024-09-12 19:18:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:06,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175058498] [2024-09-12 19:18:06,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:06,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,376 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,379 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,403 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 19:18:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:18:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 19:18:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-09-12 19:18:06,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:06,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175058498] [2024-09-12 19:18:06,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175058498] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:06,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396890524] [2024-09-12 19:18:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:06,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:06,414 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 19:18:06,416 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 19:18:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 19:18:06,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:06,791 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 21 proven. 48 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 19:18:06,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 21 proven. 48 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-09-12 19:18:07,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396890524] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:07,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:07,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 11] total 23 [2024-09-12 19:18:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939261280] [2024-09-12 19:18:07,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:07,445 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:18:07,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:18:07,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:18:07,446 INFO L87 Difference]: Start difference. First operand 356 states and 420 transitions. Second operand has 23 states, 23 states have (on average 6.086956521739131) internal successors, (140), 22 states have internal predecessors, (140), 11 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 9 states have call predecessors, (34), 11 states have call successors, (34) [2024-09-12 19:18:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:08,221 INFO L93 Difference]: Finished difference Result 380 states and 438 transitions. [2024-09-12 19:18:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:18:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.086956521739131) internal successors, (140), 22 states have internal predecessors, (140), 11 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 9 states have call predecessors, (34), 11 states have call successors, (34) Word has length 111 [2024-09-12 19:18:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:08,222 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:18:08,222 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:18:08,223 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:18:08,223 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:08,223 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 290 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:18:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:18:08,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-09-12 19:18:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 247 states have (on average 1.1538461538461537) internal successors, (285), 260 states have internal predecessors, (285), 47 states have call successors, (47), 17 states have call predecessors, (47), 16 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 19:18:08,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 377 transitions. [2024-09-12 19:18:08,382 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 377 transitions. Word has length 111 [2024-09-12 19:18:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:08,382 INFO L474 AbstractCegarLoop]: Abstraction has 321 states and 377 transitions. [2024-09-12 19:18:08,382 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.086956521739131) internal successors, (140), 22 states have internal predecessors, (140), 11 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 9 states have call predecessors, (34), 11 states have call successors, (34) [2024-09-12 19:18:08,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 377 transitions. [2024-09-12 19:18:08,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 19:18:08,383 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:08,383 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:08,400 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 19:18:08,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 19:18:08,588 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:08,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash -586321270, now seen corresponding path program 2 times [2024-09-12 19:18:08,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:08,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936783901] [2024-09-12 19:18:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:08,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,691 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,694 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,706 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,708 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,711 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,713 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:08,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936783901] [2024-09-12 19:18:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936783901] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779570660] [2024-09-12 19:18:08,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:08,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:08,718 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 19:18:08,719 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 19:18:08,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:18:08,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:08,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:08,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:08,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:09,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779570660] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:09,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:09,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:18:09,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800963164] [2024-09-12 19:18:09,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:09,009 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:18:09,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:18:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:18:09,010 INFO L87 Difference]: Start difference. First operand 321 states and 377 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 19:18:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:09,338 INFO L93 Difference]: Finished difference Result 326 states and 377 transitions. [2024-09-12 19:18:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:18:09,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 122 [2024-09-12 19:18:09,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:09,340 INFO L225 Difference]: With dead ends: 326 [2024-09-12 19:18:09,340 INFO L226 Difference]: Without dead ends: 319 [2024-09-12 19:18:09,341 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 271 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:18:09,341 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:09,341 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 268 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:18:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-09-12 19:18:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2024-09-12 19:18:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 243 states have (on average 1.139917695473251) internal successors, (277), 256 states have internal predecessors, (277), 47 states have call successors, (47), 17 states have call predecessors, (47), 16 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2024-09-12 19:18:09,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 369 transitions. [2024-09-12 19:18:09,568 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 369 transitions. Word has length 122 [2024-09-12 19:18:09,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:09,568 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 369 transitions. [2024-09-12 19:18:09,568 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-09-12 19:18:09,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,568 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 369 transitions. [2024-09-12 19:18:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:18:09,569 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:09,569 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:09,584 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 19:18:09,769 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:09,770 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:09,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2111326116, now seen corresponding path program 2 times [2024-09-12 19:18:09,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:09,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191179652] [2024-09-12 19:18:09,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,879 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:18:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,895 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:18:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:18:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:18:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 19:18:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 19:18:09,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:09,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191179652] [2024-09-12 19:18:09,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191179652] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:09,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488254523] [2024-09-12 19:18:09,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:09,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:09,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:09,906 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 19:18:09,907 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 19:18:09,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:18:09,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:09,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:18:09,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-09-12 19:18:10,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:10,222 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-09-12 19:18:10,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488254523] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:10,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:10,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 19:18:10,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822640211] [2024-09-12 19:18:10,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:10,223 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:18:10,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:10,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:18:10,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:18:10,224 INFO L87 Difference]: Start difference. First operand 317 states and 369 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 19:18:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:11,020 INFO L93 Difference]: Finished difference Result 493 states and 605 transitions. [2024-09-12 19:18:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:18:11,020 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) Word has length 124 [2024-09-12 19:18:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:11,022 INFO L225 Difference]: With dead ends: 493 [2024-09-12 19:18:11,022 INFO L226 Difference]: Without dead ends: 491 [2024-09-12 19:18:11,023 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:18:11,023 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 934 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:11,023 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 513 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:18:11,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-09-12 19:18:11,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 279. [2024-09-12 19:18:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 212 states have (on average 1.0943396226415094) internal successors, (232), 222 states have internal predecessors, (232), 42 states have call successors, (42), 17 states have call predecessors, (42), 16 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-09-12 19:18:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 314 transitions. [2024-09-12 19:18:11,208 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 314 transitions. Word has length 124 [2024-09-12 19:18:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:11,208 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 314 transitions. [2024-09-12 19:18:11,208 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (25), 10 states have call predecessors, (25), 8 states have call successors, (25) [2024-09-12 19:18:11,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 314 transitions. [2024-09-12 19:18:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 19:18:11,210 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:11,210 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:11,221 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 19:18:11,410 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-09-12 19:18:11,411 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:11,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1918855210, now seen corresponding path program 1 times [2024-09-12 19:18:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064305936] [2024-09-12 19:18:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,616 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,629 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:11,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064305936] [2024-09-12 19:18:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064305936] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417454835] [2024-09-12 19:18:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:11,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:11,643 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 19:18:11,645 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 19:18:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:18:11,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:12,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417454835] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:13,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 7] total 26 [2024-09-12 19:18:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857332067] [2024-09-12 19:18:13,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:13,301 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:18:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:18:13,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:18:13,302 INFO L87 Difference]: Start difference. First operand 279 states and 314 transitions. Second operand has 27 states, 26 states have (on average 6.5) internal successors, (169), 27 states have internal predecessors, (169), 16 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 16 states have call predecessors, (43), 16 states have call successors, (43) [2024-09-12 19:18:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:14,751 INFO L93 Difference]: Finished difference Result 431 states and 521 transitions. [2024-09-12 19:18:14,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:18:14,752 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.5) internal successors, (169), 27 states have internal predecessors, (169), 16 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 16 states have call predecessors, (43), 16 states have call successors, (43) Word has length 128 [2024-09-12 19:18:14,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:14,754 INFO L225 Difference]: With dead ends: 431 [2024-09-12 19:18:14,754 INFO L226 Difference]: Without dead ends: 429 [2024-09-12 19:18:14,755 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=656, Invalid=2314, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:18:14,755 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 933 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:14,756 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 753 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:18:14,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-09-12 19:18:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 346. [2024-09-12 19:18:15,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 270 states have (on average 1.1185185185185185) internal successors, (302), 281 states have internal predecessors, (302), 51 states have call successors, (51), 17 states have call predecessors, (51), 16 states have return successors, (49), 47 states have call predecessors, (49), 49 states have call successors, (49) [2024-09-12 19:18:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 402 transitions. [2024-09-12 19:18:15,008 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 402 transitions. Word has length 128 [2024-09-12 19:18:15,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:15,008 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 402 transitions. [2024-09-12 19:18:15,008 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.5) internal successors, (169), 27 states have internal predecessors, (169), 16 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (43), 16 states have call predecessors, (43), 16 states have call successors, (43) [2024-09-12 19:18:15,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 402 transitions. [2024-09-12 19:18:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-09-12 19:18:15,009 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:15,009 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:15,022 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 19:18:15,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-09-12 19:18:15,210 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:15,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:15,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1478882952, now seen corresponding path program 1 times [2024-09-12 19:18:15,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:15,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992261565] [2024-09-12 19:18:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:15,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:15,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992261565] [2024-09-12 19:18:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992261565] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184066829] [2024-09-12 19:18:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:15,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:15,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:15,442 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 19:18:15,453 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 19:18:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:15,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:18:15,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:15,782 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:16,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184066829] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:16,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:16,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 20 [2024-09-12 19:18:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873045088] [2024-09-12 19:18:16,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:16,771 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:18:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:18:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:18:16,772 INFO L87 Difference]: Start difference. First operand 346 states and 402 transitions. Second operand has 21 states, 20 states have (on average 8.65) internal successors, (173), 21 states have internal predecessors, (173), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) [2024-09-12 19:18:18,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:18,136 INFO L93 Difference]: Finished difference Result 578 states and 691 transitions. [2024-09-12 19:18:18,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:18:18,137 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.65) internal successors, (173), 21 states have internal predecessors, (173), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) Word has length 130 [2024-09-12 19:18:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:18,139 INFO L225 Difference]: With dead ends: 578 [2024-09-12 19:18:18,139 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 19:18:18,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=447, Invalid=743, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:18:18,140 INFO L434 NwaCegarLoop]: 81 mSDtfsCounter, 268 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:18,140 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 658 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:18:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 19:18:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 491. [2024-09-12 19:18:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 398 states have (on average 1.135678391959799) internal successors, (452), 408 states have internal predecessors, (452), 68 states have call successors, (68), 17 states have call predecessors, (68), 16 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-09-12 19:18:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2024-09-12 19:18:18,437 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 130 [2024-09-12 19:18:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:18,438 INFO L474 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2024-09-12 19:18:18,438 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.65) internal successors, (173), 21 states have internal predecessors, (173), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 13 states have call predecessors, (41), 13 states have call successors, (41) [2024-09-12 19:18:18,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2024-09-12 19:18:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:18:18,439 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:18,439 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:18,451 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 19:18:18,639 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-09-12 19:18:18,640 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:18,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:18,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1683197862, now seen corresponding path program 3 times [2024-09-12 19:18:18,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:18,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644287706] [2024-09-12 19:18:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:18,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:18,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49682084] [2024-09-12 19:18:18,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:18:18,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:18,674 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 19:18:18,678 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 19:18:18,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:18:18,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:18,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:18:18,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 60 proven. 5 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-09-12 19:18:19,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644287706] [2024-09-12 19:18:57,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49682084] [2024-09-12 19:18:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49682084] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:57,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:57,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:18:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850009363] [2024-09-12 19:18:57,685 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:57,685 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:18:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:18:57,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=301, Unknown=5, NotChecked=0, Total=380 [2024-09-12 19:18:57,686 INFO L87 Difference]: Start difference. First operand 491 states and 586 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:18:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:58,530 INFO L93 Difference]: Finished difference Result 528 states and 631 transitions. [2024-09-12 19:18:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:18:58,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2024-09-12 19:18:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:58,532 INFO L225 Difference]: With dead ends: 528 [2024-09-12 19:18:58,532 INFO L226 Difference]: Without dead ends: 525 [2024-09-12 19:18:58,533 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=170, Invalid=581, Unknown=5, NotChecked=0, Total=756 [2024-09-12 19:18:58,533 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 136 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:58,533 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 265 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:18:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-09-12 19:18:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 464. [2024-09-12 19:18:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 378 states have (on average 1.1243386243386244) internal successors, (425), 387 states have internal predecessors, (425), 62 states have call successors, (62), 17 states have call predecessors, (62), 16 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-09-12 19:18:58,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 547 transitions. [2024-09-12 19:18:58,836 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 547 transitions. Word has length 131 [2024-09-12 19:18:58,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:58,836 INFO L474 AbstractCegarLoop]: Abstraction has 464 states and 547 transitions. [2024-09-12 19:18:58,836 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:18:58,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:58,836 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 547 transitions. [2024-09-12 19:18:58,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 19:18:58,837 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:58,837 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2024-09-12 19:18:58,849 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 19:18:59,037 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-09-12 19:18:59,038 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:59,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:59,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1570755873, now seen corresponding path program 4 times [2024-09-12 19:18:59,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:59,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125652166] [2024-09-12 19:18:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:59,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,373 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,377 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,378 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,380 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,385 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,386 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,388 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:18:59,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125652166] [2024-09-12 19:18:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125652166] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654268389] [2024-09-12 19:18:59,396 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:18:59,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:59,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:59,398 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 19:18:59,404 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 19:18:59,468 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:18:59,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:59,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:18:59,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:19:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 33 proven. 57 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:19:00,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:19:04,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654268389] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:19:04,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:19:04,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 23 [2024-09-12 19:19:04,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120781716] [2024-09-12 19:19:04,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:19:04,402 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:19:04,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:19:04,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:19:04,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=606, Unknown=1, NotChecked=0, Total=702 [2024-09-12 19:19:04,403 INFO L87 Difference]: Start difference. First operand 464 states and 547 transitions. Second operand has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 12 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) [2024-09-12 19:19:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:19:05,923 INFO L93 Difference]: Finished difference Result 645 states and 782 transitions. [2024-09-12 19:19:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:19:05,923 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 12 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) Word has length 135 [2024-09-12 19:19:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:19:05,926 INFO L225 Difference]: With dead ends: 645 [2024-09-12 19:19:05,926 INFO L226 Difference]: Without dead ends: 641 [2024-09-12 19:19:05,926 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=285, Invalid=1520, Unknown=1, NotChecked=0, Total=1806 [2024-09-12 19:19:05,927 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 308 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:19:05,927 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 705 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:19:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-09-12 19:19:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 564. [2024-09-12 19:19:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 468 states have (on average 1.1367521367521367) internal successors, (532), 477 states have internal predecessors, (532), 72 states have call successors, (72), 17 states have call predecessors, (72), 16 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-09-12 19:19:06,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 674 transitions. [2024-09-12 19:19:06,280 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 674 transitions. Word has length 135 [2024-09-12 19:19:06,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:19:06,281 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 674 transitions. [2024-09-12 19:19:06,281 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.695652173913044) internal successors, (131), 24 states have internal predecessors, (131), 12 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (28), 11 states have call predecessors, (28), 12 states have call successors, (28) [2024-09-12 19:19:06,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 674 transitions. [2024-09-12 19:19:06,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:19:06,282 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:19:06,282 INFO L216 NwaCegarLoop]: trace histogram [14, 13, 13, 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] [2024-09-12 19:19:06,296 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-09-12 19:19:06,482 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:19:06,483 INFO L399 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:19:06,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash 835421453, now seen corresponding path program 3 times [2024-09-12 19:19:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:19:06,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236895024] [2024-09-12 19:19:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:19:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:19:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:19:06,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303944611] [2024-09-12 19:19:06,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:19:06,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:19:06,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:19:06,508 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 19:19:06,510 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 19:19:06,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 19:19:06,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:19:06,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:19:06,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:19:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 37 proven. 81 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:19:07,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:19:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 37 proven. 81 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-09-12 19:19:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:19:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236895024] [2024-09-12 19:19:29,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:19:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303944611] [2024-09-12 19:19:29,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303944611] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:19:29,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:19:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-09-12 19:19:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844490855] [2024-09-12 19:19:29,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:19:29,100 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:19:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:19:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:19:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=920, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:19:29,101 INFO L87 Difference]: Start difference. First operand 564 states and 674 transitions. Second operand has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 32 states have internal predecessors, (138), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-09-12 19:19:42,553 WARN L293 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 154 DAG size of output: 130 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:19:51,799 WARN L293 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 171 DAG size of output: 83 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:20:11,686 WARN L293 SmtUtils]: Spent 12.92s on a formula simplification. DAG size of input: 87 DAG size of output: 75 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:20:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:13,752 INFO L93 Difference]: Finished difference Result 853 states and 1026 transitions. [2024-09-12 19:20:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 19:20:13,752 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 32 states have internal predecessors, (138), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 139 [2024-09-12 19:20:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:13,755 INFO L225 Difference]: With dead ends: 853 [2024-09-12 19:20:13,755 INFO L226 Difference]: Without dead ends: 647 [2024-09-12 19:20:13,757 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=311, Invalid=2041, Unknown=0, NotChecked=0, Total=2352 [2024-09-12 19:20:13,757 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 242 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:13,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 758 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2499 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-09-12 19:20:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-09-12 19:20:14,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 635. [2024-09-12 19:20:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 528 states have (on average 1.1325757575757576) internal successors, (598), 542 states have internal predecessors, (598), 79 states have call successors, (79), 21 states have call predecessors, (79), 20 states have return successors, (77), 71 states have call predecessors, (77), 77 states have call successors, (77) [2024-09-12 19:20:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 754 transitions. [2024-09-12 19:20:14,229 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 754 transitions. Word has length 139 [2024-09-12 19:20:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:14,229 INFO L474 AbstractCegarLoop]: Abstraction has 635 states and 754 transitions. [2024-09-12 19:20:14,229 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.181818181818182) internal successors, (138), 32 states have internal predecessors, (138), 12 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-09-12 19:20:14,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 754 transitions. [2024-09-12 19:20:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 19:20:14,230 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:14,230 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:14,242 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 19:20:14,432 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-09-12 19:20:14,432 INFO L399 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:14,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash 37599526, now seen corresponding path program 4 times [2024-09-12 19:20:14,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:14,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84216853] [2024-09-12 19:20:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:14,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831196188] [2024-09-12 19:20:14,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:20:14,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:14,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:14,453 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 19:20:14,459 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 19:20:14,524 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:20:14,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:14,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:20:14,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 123 proven. 8 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-09-12 19:20:14,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 123 proven. 8 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2024-09-12 19:20:14,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:14,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84216853] [2024-09-12 19:20:14,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:20:14,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831196188] [2024-09-12 19:20:14,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831196188] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:14,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:20:14,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2024-09-12 19:20:14,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311950873] [2024-09-12 19:20:14,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:14,847 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:20:14,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:20:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:20:14,848 INFO L87 Difference]: Start difference. First operand 635 states and 754 transitions. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-09-12 19:20:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:15,613 INFO L93 Difference]: Finished difference Result 648 states and 766 transitions. [2024-09-12 19:20:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:20:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 146 [2024-09-12 19:20:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:15,617 INFO L225 Difference]: With dead ends: 648 [2024-09-12 19:20:15,617 INFO L226 Difference]: Without dead ends: 646 [2024-09-12 19:20:15,617 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:20:15,618 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 75 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:15,618 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 231 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:20:15,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-09-12 19:20:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2024-09-12 19:20:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 536 states have (on average 1.1305970149253732) internal successors, (606), 550 states have internal predecessors, (606), 80 states have call successors, (80), 23 states have call predecessors, (80), 22 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 19:20:16,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 764 transitions. [2024-09-12 19:20:16,114 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 764 transitions. Word has length 146 [2024-09-12 19:20:16,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:16,115 INFO L474 AbstractCegarLoop]: Abstraction has 646 states and 764 transitions. [2024-09-12 19:20:16,115 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-09-12 19:20:16,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:16,115 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 764 transitions. [2024-09-12 19:20:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 19:20:16,116 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:16,116 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, 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 19:20:16,128 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-09-12 19:20:16,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-09-12 19:20:16,317 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:16,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:16,317 INFO L85 PathProgramCache]: Analyzing trace with hash -854083680, now seen corresponding path program 3 times [2024-09-12 19:20:16,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:16,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436598660] [2024-09-12 19:20:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:16,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:16,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055386786] [2024-09-12 19:20:16,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:20:16,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:16,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:16,346 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 19:20:16,347 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 19:20:16,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:20:16,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:16,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:20:16,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-09-12 19:20:16,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:16,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436598660] [2024-09-12 19:20:16,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:20:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055386786] [2024-09-12 19:20:16,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055386786] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:16,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:20:16,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:20:16,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805291776] [2024-09-12 19:20:16,799 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:16,799 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:20:16,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:16,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:20:16,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:20:16,800 INFO L87 Difference]: Start difference. First operand 646 states and 764 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:20:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:17,447 INFO L93 Difference]: Finished difference Result 646 states and 764 transitions. [2024-09-12 19:20:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:20:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 149 [2024-09-12 19:20:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:17,450 INFO L225 Difference]: With dead ends: 646 [2024-09-12 19:20:17,450 INFO L226 Difference]: Without dead ends: 645 [2024-09-12 19:20:17,450 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:20:17,450 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 71 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:17,450 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 167 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:20:17,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-09-12 19:20:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 644. [2024-09-12 19:20:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 535 states have (on average 1.1271028037383177) internal successors, (603), 548 states have internal predecessors, (603), 80 states have call successors, (80), 23 states have call predecessors, (80), 22 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-09-12 19:20:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 761 transitions. [2024-09-12 19:20:17,989 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 761 transitions. Word has length 149 [2024-09-12 19:20:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:17,989 INFO L474 AbstractCegarLoop]: Abstraction has 644 states and 761 transitions. [2024-09-12 19:20:17,989 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-09-12 19:20:17,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 761 transitions. [2024-09-12 19:20:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-09-12 19:20:17,990 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:17,990 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:18,007 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 19:20:18,191 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:18,191 INFO L399 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:18,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:18,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1551091659, now seen corresponding path program 1 times [2024-09-12 19:20:18,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:18,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453216969] [2024-09-12 19:20:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:18,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:18,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838465957] [2024-09-12 19:20:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:18,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:18,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:18,217 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 19:20:18,219 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 19:20:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:18,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 19:20:18,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 76 proven. 92 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-09-12 19:20:19,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:22,167 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 67 proven. 101 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-09-12 19:20:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:22,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453216969] [2024-09-12 19:20:22,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:20:22,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838465957] [2024-09-12 19:20:22,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838465957] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:22,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:20:22,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-09-12 19:20:22,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669462312] [2024-09-12 19:20:22,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:22,168 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:20:22,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:22,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:20:22,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:20:22,169 INFO L87 Difference]: Start difference. First operand 644 states and 761 transitions. Second operand has 33 states, 33 states have (on average 4.363636363636363) internal successors, (144), 30 states have internal predecessors, (144), 14 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 13 states have call predecessors, (32), 12 states have call successors, (32) [2024-09-12 19:20:31,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:31,029 INFO L93 Difference]: Finished difference Result 699 states and 815 transitions. [2024-09-12 19:20:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 19:20:31,030 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.363636363636363) internal successors, (144), 30 states have internal predecessors, (144), 14 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 13 states have call predecessors, (32), 12 states have call successors, (32) Word has length 152 [2024-09-12 19:20:31,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:31,032 INFO L225 Difference]: With dead ends: 699 [2024-09-12 19:20:31,032 INFO L226 Difference]: Without dead ends: 664 [2024-09-12 19:20:31,033 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=666, Invalid=3756, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 19:20:31,034 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 286 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:31,034 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 638 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-09-12 19:20:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-09-12 19:20:31,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 645. [2024-09-12 19:20:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 535 states have (on average 1.1214953271028036) internal successors, (600), 547 states have internal predecessors, (600), 77 states have call successors, (77), 27 states have call predecessors, (77), 26 states have return successors, (76), 70 states have call predecessors, (76), 76 states have call successors, (76) [2024-09-12 19:20:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 753 transitions. [2024-09-12 19:20:31,545 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 753 transitions. Word has length 152 [2024-09-12 19:20:31,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:31,545 INFO L474 AbstractCegarLoop]: Abstraction has 645 states and 753 transitions. [2024-09-12 19:20:31,546 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.363636363636363) internal successors, (144), 30 states have internal predecessors, (144), 14 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (32), 13 states have call predecessors, (32), 12 states have call successors, (32) [2024-09-12 19:20:31,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:31,546 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 753 transitions. [2024-09-12 19:20:31,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 19:20:31,546 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:31,547 INFO L216 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:31,558 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-09-12 19:20:31,747 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-09-12 19:20:31,747 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:31,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash 112340210, now seen corresponding path program 5 times [2024-09-12 19:20:31,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:31,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873455682] [2024-09-12 19:20:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:31,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:31,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474417873] [2024-09-12 19:20:31,769 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:20:31,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:31,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:31,772 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 19:20:31,774 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 19:20:31,863 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-12 19:20:31,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:31,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-12 19:20:31,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 45 proven. 122 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-09-12 19:20:32,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:33,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:33,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873455682] [2024-09-12 19:20:33,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:20:33,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474417873] [2024-09-12 19:20:33,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474417873] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:33,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:20:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-09-12 19:20:33,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115330300] [2024-09-12 19:20:33,334 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:33,334 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:20:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:20:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:20:33,335 INFO L87 Difference]: Start difference. First operand 645 states and 753 transitions. Second operand has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 19:20:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:34,855 INFO L93 Difference]: Finished difference Result 744 states and 871 transitions. [2024-09-12 19:20:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:20:34,856 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 158 [2024-09-12 19:20:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:34,860 INFO L225 Difference]: With dead ends: 744 [2024-09-12 19:20:34,860 INFO L226 Difference]: Without dead ends: 742 [2024-09-12 19:20:34,860 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:20:34,861 INFO L434 NwaCegarLoop]: 71 mSDtfsCounter, 54 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:34,863 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 835 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:20:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-09-12 19:20:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 699. [2024-09-12 19:20:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 583 states have (on average 1.1149228130360205) internal successors, (650), 595 states have internal predecessors, (650), 83 states have call successors, (83), 27 states have call predecessors, (83), 26 states have return successors, (82), 76 states have call predecessors, (82), 82 states have call successors, (82) [2024-09-12 19:20:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 815 transitions. [2024-09-12 19:20:35,444 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 815 transitions. Word has length 158 [2024-09-12 19:20:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:35,444 INFO L474 AbstractCegarLoop]: Abstraction has 699 states and 815 transitions. [2024-09-12 19:20:35,444 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.388888888888889) internal successors, (79), 19 states have internal predecessors, (79), 8 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2024-09-12 19:20:35,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 815 transitions. [2024-09-12 19:20:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 19:20:35,445 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:35,445 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:35,457 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-09-12 19:20:35,646 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:35,646 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:35,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash 773826106, now seen corresponding path program 1 times [2024-09-12 19:20:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749414233] [2024-09-12 19:20:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:35,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,847 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,854 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:20:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:20:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:20:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:20:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:20:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:20:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,876 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 19:20:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:20:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 25 proven. 64 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:35,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:35,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749414233] [2024-09-12 19:20:35,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749414233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:35,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290938733] [2024-09-12 19:20:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:35,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:35,882 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 19:20:35,883 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 19:20:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:35,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:20:35,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 54 proven. 35 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:36,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:36,255 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 54 proven. 35 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:36,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290938733] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:36,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:20:36,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 9 [2024-09-12 19:20:36,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19256134] [2024-09-12 19:20:36,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:36,255 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:20:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:20:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:20:36,256 INFO L87 Difference]: Start difference. First operand 699 states and 815 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) [2024-09-12 19:20:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:36,929 INFO L93 Difference]: Finished difference Result 715 states and 834 transitions. [2024-09-12 19:20:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:20:36,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) Word has length 169 [2024-09-12 19:20:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:36,932 INFO L225 Difference]: With dead ends: 715 [2024-09-12 19:20:36,932 INFO L226 Difference]: Without dead ends: 709 [2024-09-12 19:20:36,932 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:20:36,933 INFO L434 NwaCegarLoop]: 95 mSDtfsCounter, 31 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:36,933 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 425 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:20:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-09-12 19:20:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 708. [2024-09-12 19:20:37,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 590 states have (on average 1.111864406779661) internal successors, (656), 599 states have internal predecessors, (656), 85 states have call successors, (85), 27 states have call predecessors, (85), 26 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-09-12 19:20:37,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 825 transitions. [2024-09-12 19:20:37,519 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 825 transitions. Word has length 169 [2024-09-12 19:20:37,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:37,520 INFO L474 AbstractCegarLoop]: Abstraction has 708 states and 825 transitions. [2024-09-12 19:20:37,520 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 8 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 8 states have call predecessors, (27), 8 states have call successors, (27) [2024-09-12 19:20:37,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:37,520 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 825 transitions. [2024-09-12 19:20:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-09-12 19:20:37,522 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:37,522 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:37,538 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 19:20:37,722 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-09-12 19:20:37,723 INFO L399 AbstractCegarLoop]: === Iteration 49 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:37,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash 468159958, now seen corresponding path program 1 times [2024-09-12 19:20:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:37,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191860058] [2024-09-12 19:20:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,912 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,918 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,925 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:20:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:20:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:20:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:20:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:20:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:20:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 19:20:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 19:20:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 29 proven. 66 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:37,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191860058] [2024-09-12 19:20:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191860058] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438135008] [2024-09-12 19:20:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:37,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:37,945 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 19:20:37,947 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 19:20:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:38,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:20:38,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 54 proven. 41 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:38,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 29 proven. 41 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2024-09-12 19:20:38,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438135008] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:38,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:20:38,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 5] total 15 [2024-09-12 19:20:38,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580718861] [2024-09-12 19:20:38,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:38,579 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:20:38,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:20:38,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:20:38,580 INFO L87 Difference]: Start difference. First operand 708 states and 825 transitions. Second operand has 16 states, 15 states have (on average 13.333333333333334) internal successors, (200), 16 states have internal predecessors, (200), 12 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) [2024-09-12 19:20:39,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:39,749 INFO L93 Difference]: Finished difference Result 799 states and 941 transitions. [2024-09-12 19:20:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-12 19:20:39,750 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.333333333333334) internal successors, (200), 16 states have internal predecessors, (200), 12 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) Word has length 172 [2024-09-12 19:20:39,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:39,753 INFO L225 Difference]: With dead ends: 799 [2024-09-12 19:20:39,753 INFO L226 Difference]: Without dead ends: 798 [2024-09-12 19:20:39,753 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:20:39,754 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 155 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:39,754 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 542 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:20:39,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-09-12 19:20:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 696. [2024-09-12 19:20:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 581 states have (on average 1.0912220309810672) internal successors, (634), 589 states have internal predecessors, (634), 83 states have call successors, (83), 27 states have call predecessors, (83), 26 states have return successors, (82), 79 states have call predecessors, (82), 82 states have call successors, (82) [2024-09-12 19:20:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 799 transitions. [2024-09-12 19:20:40,340 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 799 transitions. Word has length 172 [2024-09-12 19:20:40,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:40,340 INFO L474 AbstractCegarLoop]: Abstraction has 696 states and 799 transitions. [2024-09-12 19:20:40,340 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.333333333333334) internal successors, (200), 16 states have internal predecessors, (200), 12 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) [2024-09-12 19:20:40,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 799 transitions. [2024-09-12 19:20:40,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 19:20:40,342 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:40,342 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:40,354 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 19:20:40,544 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-09-12 19:20:40,544 INFO L399 AbstractCegarLoop]: === Iteration 50 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:40,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2111291967, now seen corresponding path program 2 times [2024-09-12 19:20:40,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:40,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67666777] [2024-09-12 19:20:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:40,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,784 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,785 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,786 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,787 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,788 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,789 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,790 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,792 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,795 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:20:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:20:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:20:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 19:20:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-09-12 19:20:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-09-12 19:20:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-09-12 19:20:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 40 proven. 64 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:20:40,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67666777] [2024-09-12 19:20:40,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67666777] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:40,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277883343] [2024-09-12 19:20:40,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:20:40,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:40,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:40,809 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 19:20:40,812 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 19:20:40,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:20:40,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:40,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:20:40,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:20:41,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 64 proven. 40 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:20:42,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277883343] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:42,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:20:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 13] total 29 [2024-09-12 19:20:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868150667] [2024-09-12 19:20:42,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:42,376 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-09-12 19:20:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-09-12 19:20:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:20:42,377 INFO L87 Difference]: Start difference. First operand 696 states and 799 transitions. Second operand has 29 states, 29 states have (on average 7.517241379310345) internal successors, (218), 29 states have internal predecessors, (218), 17 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 17 states have call predecessors, (49), 17 states have call successors, (49) [2024-09-12 19:20:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:43,398 INFO L93 Difference]: Finished difference Result 722 states and 818 transitions. [2024-09-12 19:20:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:20:43,399 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.517241379310345) internal successors, (218), 29 states have internal predecessors, (218), 17 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 17 states have call predecessors, (49), 17 states have call successors, (49) Word has length 173 [2024-09-12 19:20:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:43,401 INFO L225 Difference]: With dead ends: 722 [2024-09-12 19:20:43,401 INFO L226 Difference]: Without dead ends: 417 [2024-09-12 19:20:43,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 363 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=227, Invalid=643, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:20:43,403 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:43,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 435 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:20:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-09-12 19:20:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-09-12 19:20:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 337 states have (on average 1.0682492581602374) internal successors, (360), 342 states have internal predecessors, (360), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:20:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 463 transitions. [2024-09-12 19:20:43,776 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 463 transitions. Word has length 173 [2024-09-12 19:20:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:43,777 INFO L474 AbstractCegarLoop]: Abstraction has 417 states and 463 transitions. [2024-09-12 19:20:43,777 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.517241379310345) internal successors, (218), 29 states have internal predecessors, (218), 17 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (49), 17 states have call predecessors, (49), 17 states have call successors, (49) [2024-09-12 19:20:43,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 463 transitions. [2024-09-12 19:20:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-09-12 19:20:43,779 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:43,779 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:43,786 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-09-12 19:20:43,979 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-09-12 19:20:43,980 INFO L399 AbstractCegarLoop]: === Iteration 51 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:43,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash -175024073, now seen corresponding path program 1 times [2024-09-12 19:20:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773061239] [2024-09-12 19:20:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,230 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,231 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,232 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,233 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,235 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,236 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,238 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,242 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:20:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:20:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:20:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:20:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:20:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:20:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 19:20:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:20:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:44,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:44,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773061239] [2024-09-12 19:20:44,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773061239] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:44,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852986938] [2024-09-12 19:20:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:44,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:44,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:44,260 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 19:20:44,266 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 19:20:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:44,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:20:44,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 69 proven. 32 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:44,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 17 proven. 84 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:45,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852986938] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:20:45,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:20:45,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 9] total 29 [2024-09-12 19:20:45,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676546475] [2024-09-12 19:20:45,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:45,302 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-09-12 19:20:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:45,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-09-12 19:20:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:20:45,303 INFO L87 Difference]: Start difference. First operand 417 states and 463 transitions. Second operand has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 22 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (58), 22 states have call predecessors, (58), 22 states have call successors, (58) [2024-09-12 19:20:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:47,594 INFO L93 Difference]: Finished difference Result 854 states and 1005 transitions. [2024-09-12 19:20:47,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-09-12 19:20:47,595 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 22 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (58), 22 states have call predecessors, (58), 22 states have call successors, (58) Word has length 174 [2024-09-12 19:20:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:47,599 INFO L225 Difference]: With dead ends: 854 [2024-09-12 19:20:47,599 INFO L226 Difference]: Without dead ends: 853 [2024-09-12 19:20:47,602 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1402, Invalid=4760, Unknown=0, NotChecked=0, Total=6162 [2024-09-12 19:20:47,602 INFO L434 NwaCegarLoop]: 126 mSDtfsCounter, 1846 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:47,602 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 1346 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:20:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-09-12 19:20:47,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 407. [2024-09-12 19:20:47,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 328 states have (on average 1.0609756097560976) internal successors, (348), 334 states have internal predecessors, (348), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2024-09-12 19:20:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 451 transitions. [2024-09-12 19:20:47,995 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 451 transitions. Word has length 174 [2024-09-12 19:20:47,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:47,995 INFO L474 AbstractCegarLoop]: Abstraction has 407 states and 451 transitions. [2024-09-12 19:20:47,995 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 22 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (58), 22 states have call predecessors, (58), 22 states have call successors, (58) [2024-09-12 19:20:47,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 451 transitions. [2024-09-12 19:20:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-09-12 19:20:47,996 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:47,996 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:48,008 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 19:20:48,197 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-09-12 19:20:48,197 INFO L399 AbstractCegarLoop]: === Iteration 52 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:48,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:48,197 INFO L85 PathProgramCache]: Analyzing trace with hash -694405735, now seen corresponding path program 1 times [2024-09-12 19:20:48,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:48,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477884580] [2024-09-12 19:20:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:48,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:20:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:20:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,490 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:20:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,492 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:20:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,494 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:20:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,495 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:20:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 19:20:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:20:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:48,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477884580] [2024-09-12 19:20:48,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477884580] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856922706] [2024-09-12 19:20:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:48,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:48,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:48,503 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 19:20:48,504 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 19:20:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:48,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:20:48,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-09-12 19:20:48,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:49,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856922706] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:49,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:20:49,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 21 [2024-09-12 19:20:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197155121] [2024-09-12 19:20:49,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:49,212 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:20:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:49,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:20:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:20:49,213 INFO L87 Difference]: Start difference. First operand 407 states and 451 transitions. Second operand has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (37), 13 states have call predecessors, (37), 13 states have call successors, (37) [2024-09-12 19:20:50,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:50,106 INFO L93 Difference]: Finished difference Result 441 states and 492 transitions. [2024-09-12 19:20:50,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:20:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (37), 13 states have call predecessors, (37), 13 states have call successors, (37) Word has length 176 [2024-09-12 19:20:50,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:50,109 INFO L225 Difference]: With dead ends: 441 [2024-09-12 19:20:50,109 INFO L226 Difference]: Without dead ends: 440 [2024-09-12 19:20:50,110 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=437, Invalid=895, Unknown=0, NotChecked=0, Total=1332 [2024-09-12 19:20:50,110 INFO L434 NwaCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:50,110 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 401 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:20:50,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-09-12 19:20:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 436. [2024-09-12 19:20:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 353 states have (on average 1.0623229461756374) internal successors, (375), 359 states have internal predecessors, (375), 56 states have call successors, (56), 23 states have call predecessors, (56), 22 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:20:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 486 transitions. [2024-09-12 19:20:50,676 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 486 transitions. Word has length 176 [2024-09-12 19:20:50,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:50,677 INFO L474 AbstractCegarLoop]: Abstraction has 436 states and 486 transitions. [2024-09-12 19:20:50,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 13 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (37), 13 states have call predecessors, (37), 13 states have call successors, (37) [2024-09-12 19:20:50,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 486 transitions. [2024-09-12 19:20:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:20:50,678 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:50,678 INFO L216 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2024-09-12 19:20:50,693 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-09-12 19:20:50,879 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,42 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:50,879 INFO L399 AbstractCegarLoop]: === Iteration 53 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:50,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1909220863, now seen corresponding path program 6 times [2024-09-12 19:20:50,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:50,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97667660] [2024-09-12 19:20:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:50,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1177002494] [2024-09-12 19:20:50,899 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 19:20:50,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:50,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:50,901 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 19:20:50,903 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 19:20:50,962 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-09-12 19:20:50,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:50,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:20:50,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 54 proven. 29 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2024-09-12 19:20:52,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:20:57,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97667660] [2024-09-12 19:20:57,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:20:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177002494] [2024-09-12 19:20:57,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177002494] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:57,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:20:57,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:20:57,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90243375] [2024-09-12 19:20:57,803 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:20:57,803 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:20:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:20:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:20:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=342, Unknown=1, NotChecked=0, Total=420 [2024-09-12 19:20:57,803 INFO L87 Difference]: Start difference. First operand 436 states and 486 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:20:58,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:58,986 INFO L93 Difference]: Finished difference Result 470 states and 525 transitions. [2024-09-12 19:20:58,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:20:58,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 181 [2024-09-12 19:20:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:58,989 INFO L225 Difference]: With dead ends: 470 [2024-09-12 19:20:58,989 INFO L226 Difference]: Without dead ends: 469 [2024-09-12 19:20:58,989 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=164, Invalid=705, Unknown=1, NotChecked=0, Total=870 [2024-09-12 19:20:58,989 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 124 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:58,990 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 335 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:20:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-09-12 19:20:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 427. [2024-09-12 19:20:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 344 states have (on average 1.058139534883721) internal successors, (364), 350 states have internal predecessors, (364), 56 states have call successors, (56), 23 states have call predecessors, (56), 22 states have return successors, (55), 53 states have call predecessors, (55), 55 states have call successors, (55) [2024-09-12 19:20:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 475 transitions. [2024-09-12 19:20:59,419 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 475 transitions. Word has length 181 [2024-09-12 19:20:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:59,419 INFO L474 AbstractCegarLoop]: Abstraction has 427 states and 475 transitions. [2024-09-12 19:20:59,419 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:20:59,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 475 transitions. [2024-09-12 19:20:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-09-12 19:20:59,420 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:59,421 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:20:59,432 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 19:20:59,621 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,43 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:59,621 INFO L399 AbstractCegarLoop]: === Iteration 54 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:20:59,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:59,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1705579936, now seen corresponding path program 1 times [2024-09-12 19:20:59,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:59,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961633673] [2024-09-12 19:20:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:20:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,953 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:20:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,955 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:20:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,956 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:20:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,958 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:20:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,959 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:20:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,960 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:20:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,962 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:20:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:20:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:20:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,966 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:20:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:20:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,970 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:20:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:20:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,974 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:20:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:20:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,977 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:20:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:20:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,981 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 19:20:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:20:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:20:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:20:59,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:20:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961633673] [2024-09-12 19:20:59,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961633673] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:20:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131769589] [2024-09-12 19:20:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:59,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:59,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:59,987 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 19:20:59,988 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 19:21:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:00,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:21:00,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:21:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:21:00,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:21:00,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131769589] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:21:00,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:21:00,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2024-09-12 19:21:00,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275721202] [2024-09-12 19:21:00,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:21:00,850 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-09-12 19:21:00,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:21:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-09-12 19:21:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:21:00,851 INFO L87 Difference]: Start difference. First operand 427 states and 475 transitions. Second operand has 26 states, 25 states have (on average 6.8) internal successors, (170), 26 states have internal predecessors, (170), 13 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-09-12 19:21:03,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:21:03,054 INFO L93 Difference]: Finished difference Result 717 states and 828 transitions. [2024-09-12 19:21:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-09-12 19:21:03,055 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 26 states have internal predecessors, (170), 13 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) Word has length 181 [2024-09-12 19:21:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:21:03,057 INFO L225 Difference]: With dead ends: 717 [2024-09-12 19:21:03,058 INFO L226 Difference]: Without dead ends: 706 [2024-09-12 19:21:03,058 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=424, Invalid=2332, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 19:21:03,058 INFO L434 NwaCegarLoop]: 97 mSDtfsCounter, 445 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:21:03,058 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 866 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:21:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-09-12 19:21:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 583. [2024-09-12 19:21:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 482 states have (on average 1.0684647302904564) internal successors, (515), 490 states have internal predecessors, (515), 74 states have call successors, (74), 23 states have call predecessors, (74), 22 states have return successors, (73), 69 states have call predecessors, (73), 73 states have call successors, (73) [2024-09-12 19:21:03,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 662 transitions. [2024-09-12 19:21:03,630 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 662 transitions. Word has length 181 [2024-09-12 19:21:03,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:21:03,630 INFO L474 AbstractCegarLoop]: Abstraction has 583 states and 662 transitions. [2024-09-12 19:21:03,630 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.8) internal successors, (170), 26 states have internal predecessors, (170), 13 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (38), 13 states have call predecessors, (38), 13 states have call successors, (38) [2024-09-12 19:21:03,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:03,630 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 662 transitions. [2024-09-12 19:21:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-09-12 19:21:03,632 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:21:03,632 INFO L216 NwaCegarLoop]: trace histogram [19, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:21:03,648 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 19:21:03,832 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-09-12 19:21:03,832 INFO L399 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:21:03,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:03,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1707971060, now seen corresponding path program 1 times [2024-09-12 19:21:03,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:21:03,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735047457] [2024-09-12 19:21:03,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:21:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:21:03,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606458103] [2024-09-12 19:21:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:03,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:21:03,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:21:03,860 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 19:21:03,863 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 19:21:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:03,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-12 19:21:03,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:21:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 35 proven. 173 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-09-12 19:21:05,221 INFO L327 TraceCheckSpWp]: Computing backward predicates...