./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound5.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_valuebound5.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 a077c1334c11d8329da2d0c58ca917b2036581fa7e949d1d304e3346ec54a811 --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 19:17:58,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:17:58,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:17:58,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:17:58,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:17:58,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:17:58,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:17:58,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:17:58,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:17:58,617 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:17:58,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:17:58,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:17:58,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:17:58,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:17:58,620 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:17:58,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:17:58,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:17:58,621 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:17:58,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:17:58,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:17:58,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:17:58,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:17:58,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:17:58,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:17:58,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:17:58,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:17:58,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:17:58,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:17:58,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:17:58,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:17:58,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:17:58,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:17:58,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:17:58,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:17:58,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:17:58,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:17:58,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:17:58,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:17:58,628 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:17:58,628 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:17:58,628 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:17:58,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:17:58,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a077c1334c11d8329da2d0c58ca917b2036581fa7e949d1d304e3346ec54a811 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:17:58,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:17:58,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:17:58,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:17:58,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:17:58,890 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:17:58,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound5.c [2024-09-12 19:18:00,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:18:00,352 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:18:00,352 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound5.c [2024-09-12 19:18:00,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/aebe620f5/328bfa890bf6491a91f7c252c7d592da/FLAG36ea71673 [2024-09-12 19:18:00,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/aebe620f5/328bfa890bf6491a91f7c252c7d592da [2024-09-12 19:18:00,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:18:00,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:18:00,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:18:00,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:18:00,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:18:00,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e23b8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00, skipping insertion in model container [2024-09-12 19:18:00,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:18:00,559 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_valuebound5.c[526,539] [2024-09-12 19:18:00,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:18:00,590 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:18:00,601 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_valuebound5.c[526,539] [2024-09-12 19:18:00,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:18:00,625 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:18:00,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00 WrapperNode [2024-09-12 19:18:00,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:18:00,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:18:00,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:18:00,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:18:00,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,647 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:18:00,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:18:00,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:18:00,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:18:00,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:18:00,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,673 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 19:18:00,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,682 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:18:00,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:18:00,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:18:00,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:18:00,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (1/1) ... [2024-09-12 19:18:00,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:18:00,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:00,719 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 19:18:00,721 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 19:18:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:18:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:18:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:18:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:18:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:18:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:18:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-12 19:18:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:18:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:18:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:18:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:18:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:18:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:18:00,803 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:18:00,805 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:18:00,996 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-09-12 19:18:00,997 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:18:01,015 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:18:01,017 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 19:18:01,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:18:01 BoogieIcfgContainer [2024-09-12 19:18:01,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:18:01,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:18:01,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:18:01,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:18:01,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:18:00" (1/3) ... [2024-09-12 19:18:01,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bb27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:18:01, skipping insertion in model container [2024-09-12 19:18:01,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:18:00" (2/3) ... [2024-09-12 19:18:01,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bb27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:18:01, skipping insertion in model container [2024-09-12 19:18:01,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:18:01" (3/3) ... [2024-09-12 19:18:01,026 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound5.c [2024-09-12 19:18:01,038 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:18:01,038 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:18:01,092 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:18:01,098 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;@21525c9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:18:01,098 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:18:01,101 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 19:18:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-12 19:18:01,106 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:01,106 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:01,107 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:01,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1210446024, now seen corresponding path program 1 times [2024-09-12 19:18:01,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:01,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840374430] [2024-09-12 19:18:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:01,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,228 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,252 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 19:18:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:01,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840374430] [2024-09-12 19:18:01,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840374430] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:01,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:01,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:18:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929699830] [2024-09-12 19:18:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:01,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:18:01,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:18:01,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:18:01,281 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 19:18:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:01,320 INFO L93 Difference]: Finished difference Result 154 states and 188 transitions. [2024-09-12 19:18:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:18:01,323 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 19:18:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:01,329 INFO L225 Difference]: With dead ends: 154 [2024-09-12 19:18:01,330 INFO L226 Difference]: Without dead ends: 77 [2024-09-12 19:18:01,334 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 19:18:01,337 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 19:18:01,338 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 19:18:01,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-09-12 19:18:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-09-12 19:18:01,374 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 19:18:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2024-09-12 19:18:01,378 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 14 [2024-09-12 19:18:01,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:01,379 INFO L474 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2024-09-12 19:18:01,379 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 19:18:01,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2024-09-12 19:18:01,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 19:18:01,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:01,381 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:18:01,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:18:01,381 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 19:18:01,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,382 INFO L85 PathProgramCache]: Analyzing trace with hash -14664005, now seen corresponding path program 1 times [2024-09-12 19:18:01,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:01,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684568372] [2024-09-12 19:18:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:01,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,528 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 19:18:01,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684568372] [2024-09-12 19:18:01,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684568372] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:01,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:01,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:18:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996504577] [2024-09-12 19:18:01,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:01,532 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:01,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:01,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:01,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:01,533 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 19:18:01,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:01,697 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2024-09-12 19:18:01,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:01,698 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 19:18:01,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:01,700 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:18:01,701 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:18:01,701 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 19:18:01,702 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:01,703 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 230 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:18:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:18:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2024-09-12 19:18:01,719 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 19:18:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2024-09-12 19:18:01,722 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 16 [2024-09-12 19:18:01,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:01,722 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2024-09-12 19:18:01,723 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 19:18:01,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2024-09-12 19:18:01,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:18:01,724 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:01,724 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 19:18:01,724 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:18:01,724 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 19:18:01,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1730326410, now seen corresponding path program 1 times [2024-09-12 19:18:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:01,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012718604] [2024-09-12 19:18:01,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:01,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,815 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,819 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 19:18:01,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012718604] [2024-09-12 19:18:01,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012718604] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:01,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:01,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:18:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527023942] [2024-09-12 19:18:01,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:01,820 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:01,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:01,821 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 19:18:01,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:01,894 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-09-12 19:18:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:01,895 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 19:18:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:01,897 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:18:01,897 INFO L226 Difference]: Without dead ends: 114 [2024-09-12 19:18:01,898 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 19:18:01,899 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 43 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 19:18:01,901 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 19:18:01,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-09-12 19:18:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2024-09-12 19:18:01,916 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 19:18:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 120 transitions. [2024-09-12 19:18:01,918 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 120 transitions. Word has length 21 [2024-09-12 19:18:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:01,919 INFO L474 AbstractCegarLoop]: Abstraction has 102 states and 120 transitions. [2024-09-12 19:18:01,920 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 19:18:01,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,920 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 120 transitions. [2024-09-12 19:18:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-09-12 19:18:01,921 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:01,921 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 19:18:01,921 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:18:01,921 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:01,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:01,922 INFO L85 PathProgramCache]: Analyzing trace with hash -691178579, now seen corresponding path program 1 times [2024-09-12 19:18:01,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:01,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013140654] [2024-09-12 19:18:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:01,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:01,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027024673] [2024-09-12 19:18:01,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:01,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:01,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:01,943 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 19:18:01,946 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 19:18:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:01,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:01,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:02,034 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 19:18:02,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:02,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:02,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013140654] [2024-09-12 19:18:02,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:02,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027024673] [2024-09-12 19:18:02,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027024673] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:02,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:02,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:18:02,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031529359] [2024-09-12 19:18:02,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:02,040 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:18:02,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:18:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:18:02,041 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 19:18:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:02,138 INFO L93 Difference]: Finished difference Result 195 states and 240 transitions. [2024-09-12 19:18:02,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:18:02,139 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 19:18:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:02,140 INFO L225 Difference]: With dead ends: 195 [2024-09-12 19:18:02,142 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:18:02,143 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 19:18:02,143 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 19:18:02,144 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 19:18:02,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:18:02,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-09-12 19:18:02,161 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 19:18:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-09-12 19:18:02,164 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 23 [2024-09-12 19:18:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:02,165 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-09-12 19:18:02,165 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 19:18:02,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-09-12 19:18:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:18:02,166 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:02,166 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 19:18:02,178 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 19:18:02,370 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 19:18:02,371 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 19:18:02,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:02,371 INFO L85 PathProgramCache]: Analyzing trace with hash -915238307, now seen corresponding path program 1 times [2024-09-12 19:18:02,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:02,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35756290] [2024-09-12 19:18:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:02,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:02,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969224359] [2024-09-12 19:18:02,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:02,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:02,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:02,383 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 19:18:02,384 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 19:18:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:02,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:18:02,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:02,498 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 19:18:02,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35756290] [2024-09-12 19:18:02,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969224359] [2024-09-12 19:18:02,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969224359] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:02,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:02,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:18:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713406397] [2024-09-12 19:18:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:02,500 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:02,501 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 19:18:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:02,658 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2024-09-12 19:18:02,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:02,659 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 19:18:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:02,660 INFO L225 Difference]: With dead ends: 131 [2024-09-12 19:18:02,660 INFO L226 Difference]: Without dead ends: 127 [2024-09-12 19:18:02,660 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 19:18:02,661 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:02,661 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 221 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:18:02,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-09-12 19:18:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-09-12 19:18:02,674 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 19:18:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 152 transitions. [2024-09-12 19:18:02,675 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 152 transitions. Word has length 28 [2024-09-12 19:18:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:02,675 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 152 transitions. [2024-09-12 19:18:02,675 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 19:18:02,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 152 transitions. [2024-09-12 19:18:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:18:02,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:02,676 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 19:18:02,689 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 19:18:02,880 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 19:18:02,881 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:02,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:02,881 INFO L85 PathProgramCache]: Analyzing trace with hash -404225700, now seen corresponding path program 1 times [2024-09-12 19:18:02,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:02,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82078801] [2024-09-12 19:18:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:02,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:02,999 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,045 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,051 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,054 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 19:18:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:03,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82078801] [2024-09-12 19:18:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82078801] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:03,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:03,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:18:03,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670478711] [2024-09-12 19:18:03,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:03,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:18:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:03,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:18:03,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:18:03,056 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 19:18:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:03,450 INFO L93 Difference]: Finished difference Result 145 states and 170 transitions. [2024-09-12 19:18:03,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:18:03,450 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 19:18:03,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:03,451 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:18:03,451 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:18:03,452 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 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 19:18:03,452 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 180 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:03,452 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 226 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:18:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:18:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2024-09-12 19:18:03,483 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 19:18:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2024-09-12 19:18:03,484 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 34 [2024-09-12 19:18:03,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:03,485 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2024-09-12 19:18:03,485 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 19:18:03,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:03,485 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2024-09-12 19:18:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:18:03,486 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:03,486 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 19:18:03,486 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:18:03,486 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:03,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash 353905281, now seen corresponding path program 1 times [2024-09-12 19:18:03,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:03,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620531450] [2024-09-12 19:18:03,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:03,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,558 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 19:18:03,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:03,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620531450] [2024-09-12 19:18:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620531450] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:03,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:03,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:18:03,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145794633] [2024-09-12 19:18:03,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:03,559 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:03,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:03,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:03,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:03,560 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 19:18:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:03,824 INFO L93 Difference]: Finished difference Result 145 states and 173 transitions. [2024-09-12 19:18:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:18:03,825 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 19:18:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:03,826 INFO L225 Difference]: With dead ends: 145 [2024-09-12 19:18:03,826 INFO L226 Difference]: Without dead ends: 144 [2024-09-12 19:18:03,827 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 19:18:03,828 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 55 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:03,829 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 201 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:03,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-09-12 19:18:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2024-09-12 19:18:03,858 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 19:18:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2024-09-12 19:18:03,859 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 35 [2024-09-12 19:18:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:03,860 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2024-09-12 19:18:03,860 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 19:18:03,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2024-09-12 19:18:03,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:18:03,861 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:03,862 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 19:18:03,862 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:18:03,862 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 19:18:03,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:03,864 INFO L85 PathProgramCache]: Analyzing trace with hash 542780013, now seen corresponding path program 1 times [2024-09-12 19:18:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:03,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623806480] [2024-09-12 19:18:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:03,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2072505063] [2024-09-12 19:18:03,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:03,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:03,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:03,883 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 19:18:03,885 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 19:18:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:03,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:18:03,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:03,978 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 19:18:03,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:03,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:03,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623806480] [2024-09-12 19:18:03,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:03,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072505063] [2024-09-12 19:18:03,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072505063] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:03,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:03,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:18:03,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101829385] [2024-09-12 19:18:03,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:03,981 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:03,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:03,982 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 19:18:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:04,110 INFO L93 Difference]: Finished difference Result 155 states and 177 transitions. [2024-09-12 19:18:04,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:04,111 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 19:18:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:04,112 INFO L225 Difference]: With dead ends: 155 [2024-09-12 19:18:04,112 INFO L226 Difference]: Without dead ends: 153 [2024-09-12 19:18:04,113 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 19:18:04,113 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 19:18:04,113 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 19:18:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-09-12 19:18:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 144. [2024-09-12 19:18:04,130 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 19:18:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2024-09-12 19:18:04,131 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 39 [2024-09-12 19:18:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:04,131 INFO L474 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2024-09-12 19:18:04,131 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 19:18:04,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2024-09-12 19:18:04,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:18:04,140 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:04,140 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 19:18:04,152 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 19:18:04,340 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 19:18:04,341 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:04,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:04,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1318184578, now seen corresponding path program 1 times [2024-09-12 19:18:04,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:04,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589454247] [2024-09-12 19:18:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:04,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637585967] [2024-09-12 19:18:04,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:04,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:04,350 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 19:18:04,351 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 19:18:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:04,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:04,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:04,453 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 19:18:04,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:04,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589454247] [2024-09-12 19:18:04,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637585967] [2024-09-12 19:18:04,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637585967] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:04,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:04,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:18:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289322060] [2024-09-12 19:18:04,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:04,455 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:04,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:04,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:18:04,455 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 19:18:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:04,531 INFO L93 Difference]: Finished difference Result 167 states and 197 transitions. [2024-09-12 19:18:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:04,532 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 19:18:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:04,535 INFO L225 Difference]: With dead ends: 167 [2024-09-12 19:18:04,535 INFO L226 Difference]: Without dead ends: 145 [2024-09-12 19:18:04,535 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 19:18:04,536 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 19:18:04,536 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 19:18:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-09-12 19:18:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-09-12 19:18:04,560 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 19:18:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2024-09-12 19:18:04,561 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 46 [2024-09-12 19:18:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:04,562 INFO L474 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2024-09-12 19:18:04,562 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 19:18:04,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:04,563 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2024-09-12 19:18:04,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:18:04,564 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:04,564 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 19:18:04,576 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:18:04,764 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 19:18:04,765 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:04,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:04,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2085951102, now seen corresponding path program 1 times [2024-09-12 19:18:04,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:04,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425724376] [2024-09-12 19:18:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:04,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:04,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552546827] [2024-09-12 19:18:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:04,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:04,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:04,779 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 19:18:04,781 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 19:18:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:04,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:04,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:04,876 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 19:18:04,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:05,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425724376] [2024-09-12 19:18:05,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552546827] [2024-09-12 19:18:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552546827] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:05,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:05,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-09-12 19:18:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743620211] [2024-09-12 19:18:05,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:05,109 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:05,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:05,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:18:05,110 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 19:18:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:05,233 INFO L93 Difference]: Finished difference Result 221 states and 277 transitions. [2024-09-12 19:18:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:05,233 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 19:18:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:05,236 INFO L225 Difference]: With dead ends: 221 [2024-09-12 19:18:05,236 INFO L226 Difference]: Without dead ends: 217 [2024-09-12 19:18:05,237 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 19:18:05,237 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 19:18:05,238 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 19:18:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-09-12 19:18:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 205. [2024-09-12 19:18:05,267 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 19:18:05,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 263 transitions. [2024-09-12 19:18:05,268 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 263 transitions. Word has length 47 [2024-09-12 19:18:05,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:05,268 INFO L474 AbstractCegarLoop]: Abstraction has 205 states and 263 transitions. [2024-09-12 19:18:05,268 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 19:18:05,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 263 transitions. [2024-09-12 19:18:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:18:05,270 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:05,271 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 19:18:05,283 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:18:05,471 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 19:18:05,472 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 19:18:05,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2028607700, now seen corresponding path program 1 times [2024-09-12 19:18:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:05,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155396331] [2024-09-12 19:18:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:05,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632828453] [2024-09-12 19:18:05,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:05,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:05,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:05,482 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 19:18:05,490 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 19:18:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:05,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:18:05,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:05,625 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 19:18:05,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:05,705 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 19:18:05,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155396331] [2024-09-12 19:18:05,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632828453] [2024-09-12 19:18:05,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632828453] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:05,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:05,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:18:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236829569] [2024-09-12 19:18:05,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:05,706 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:18:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:18:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:18:05,707 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 19:18:06,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:06,157 INFO L93 Difference]: Finished difference Result 215 states and 276 transitions. [2024-09-12 19:18:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:18:06,158 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 19:18:06,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:06,159 INFO L225 Difference]: With dead ends: 215 [2024-09-12 19:18:06,159 INFO L226 Difference]: Without dead ends: 213 [2024-09-12 19:18:06,159 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 19:18:06,160 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 13 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:06,160 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 196 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:18:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-09-12 19:18:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 209. [2024-09-12 19:18:06,193 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 19:18:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 266 transitions. [2024-09-12 19:18:06,194 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 266 transitions. Word has length 51 [2024-09-12 19:18:06,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:06,195 INFO L474 AbstractCegarLoop]: Abstraction has 209 states and 266 transitions. [2024-09-12 19:18:06,195 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 19:18:06,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 266 transitions. [2024-09-12 19:18:06,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:18:06,195 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:06,196 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 19:18:06,211 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 19:18:06,399 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 19:18:06,400 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:06,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1407841698, now seen corresponding path program 1 times [2024-09-12 19:18:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:06,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452702461] [2024-09-12 19:18:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:18:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,513 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 19:18:06,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:06,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452702461] [2024-09-12 19:18:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452702461] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:18:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929293742] [2024-09-12 19:18:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:06,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:18:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:06,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:18:06,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:18:06,515 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 19:18:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:06,751 INFO L93 Difference]: Finished difference Result 220 states and 276 transitions. [2024-09-12 19:18:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:18:06,752 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 19:18:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:06,753 INFO L225 Difference]: With dead ends: 220 [2024-09-12 19:18:06,753 INFO L226 Difference]: Without dead ends: 219 [2024-09-12 19:18:06,754 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 19:18:06,754 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 96 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:06,754 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 306 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-09-12 19:18:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 209. [2024-09-12 19:18:06,777 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 19:18:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 265 transitions. [2024-09-12 19:18:06,778 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 265 transitions. Word has length 51 [2024-09-12 19:18:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:06,778 INFO L474 AbstractCegarLoop]: Abstraction has 209 states and 265 transitions. [2024-09-12 19:18:06,778 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 19:18:06,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 265 transitions. [2024-09-12 19:18:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:18:06,779 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:06,779 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 19:18:06,779 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-12 19:18:06,780 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:06,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:06,780 INFO L85 PathProgramCache]: Analyzing trace with hash 693419815, now seen corresponding path program 1 times [2024-09-12 19:18:06,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:06,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763204670] [2024-09-12 19:18:06,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:06,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:18:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:06,872 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 19:18:06,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:06,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763204670] [2024-09-12 19:18:06,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763204670] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:06,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:06,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:18:06,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756767870] [2024-09-12 19:18:06,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:06,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:06,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:06,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:06,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:06,875 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 19:18:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:06,997 INFO L93 Difference]: Finished difference Result 216 states and 273 transitions. [2024-09-12 19:18:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:06,998 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 19:18:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:06,999 INFO L225 Difference]: With dead ends: 216 [2024-09-12 19:18:06,999 INFO L226 Difference]: Without dead ends: 215 [2024-09-12 19:18:06,999 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 19:18:07,000 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 19:18:07,000 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 19:18:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-09-12 19:18:07,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2024-09-12 19:18:07,022 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 19:18:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 269 transitions. [2024-09-12 19:18:07,024 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 269 transitions. Word has length 52 [2024-09-12 19:18:07,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:07,024 INFO L474 AbstractCegarLoop]: Abstraction has 213 states and 269 transitions. [2024-09-12 19:18:07,024 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 19:18:07,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:07,024 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 269 transitions. [2024-09-12 19:18:07,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:18:07,025 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:07,025 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 19:18:07,025 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:18:07,025 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:07,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:07,026 INFO L85 PathProgramCache]: Analyzing trace with hash 237727803, now seen corresponding path program 1 times [2024-09-12 19:18:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182915684] [2024-09-12 19:18:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:07,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,053 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,061 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,063 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,064 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,066 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 19:18:07,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182915684] [2024-09-12 19:18:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182915684] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589762317] [2024-09-12 19:18:07,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:07,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:07,068 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 19:18:07,069 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 19:18:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:18:07,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:07,127 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 19:18:07,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589762317] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:07,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:07,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:18:07,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496564636] [2024-09-12 19:18:07,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:07,129 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:07,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:07,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:07,129 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 19:18:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:07,227 INFO L93 Difference]: Finished difference Result 301 states and 398 transitions. [2024-09-12 19:18:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:07,227 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 19:18:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:07,230 INFO L225 Difference]: With dead ends: 301 [2024-09-12 19:18:07,230 INFO L226 Difference]: Without dead ends: 299 [2024-09-12 19:18:07,230 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 19:18:07,230 INFO L434 NwaCegarLoop]: 77 mSDtfsCounter, 52 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 19:18:07,231 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 19:18:07,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-09-12 19:18:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 274. [2024-09-12 19:18:07,269 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 19:18:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 364 transitions. [2024-09-12 19:18:07,271 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 364 transitions. Word has length 54 [2024-09-12 19:18:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:07,271 INFO L474 AbstractCegarLoop]: Abstraction has 274 states and 364 transitions. [2024-09-12 19:18:07,271 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 19:18:07,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:07,272 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 364 transitions. [2024-09-12 19:18:07,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:18:07,272 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:07,272 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 19:18:07,285 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 19:18:07,473 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 19:18:07,473 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:07,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1220372629, now seen corresponding path program 1 times [2024-09-12 19:18:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526361443] [2024-09-12 19:18:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:07,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,516 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,517 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,525 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,527 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 19:18:07,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526361443] [2024-09-12 19:18:07,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526361443] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:07,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476905721] [2024-09-12 19:18:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:07,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:07,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:07,529 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 19:18:07,530 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 19:18:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:07,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:18:07,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:07,598 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 19:18:07,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:07,646 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 19:18:07,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476905721] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:07,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:07,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:18:07,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098072329] [2024-09-12 19:18:07,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:07,647 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:18:07,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:18:07,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:18:07,648 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 19:18:07,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:07,835 INFO L93 Difference]: Finished difference Result 432 states and 582 transitions. [2024-09-12 19:18:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:18:07,835 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 19:18:07,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:07,837 INFO L225 Difference]: With dead ends: 432 [2024-09-12 19:18:07,837 INFO L226 Difference]: Without dead ends: 430 [2024-09-12 19:18:07,837 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 19:18:07,837 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 19:18:07,838 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 19:18:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-09-12 19:18:07,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 374. [2024-09-12 19:18:07,886 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 19:18:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 517 transitions. [2024-09-12 19:18:07,890 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 517 transitions. Word has length 55 [2024-09-12 19:18:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:07,890 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 517 transitions. [2024-09-12 19:18:07,890 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 19:18:07,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 517 transitions. [2024-09-12 19:18:07,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:18:07,891 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:07,891 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 19:18:07,903 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 19:18:08,092 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 19:18:08,093 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:08,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash 736206546, now seen corresponding path program 1 times [2024-09-12 19:18:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:08,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282813597] [2024-09-12 19:18:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:08,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049268566] [2024-09-12 19:18:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:08,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:08,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:08,104 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 19:18:08,105 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 19:18:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:08,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:08,205 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 19:18:08,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:08,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:08,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282813597] [2024-09-12 19:18:08,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:08,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049268566] [2024-09-12 19:18:08,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049268566] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:08,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:08,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:18:08,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778834495] [2024-09-12 19:18:08,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:08,207 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:08,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:18:08,208 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 19:18:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:08,336 INFO L93 Difference]: Finished difference Result 393 states and 542 transitions. [2024-09-12 19:18:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:08,337 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 19:18:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:08,338 INFO L225 Difference]: With dead ends: 393 [2024-09-12 19:18:08,338 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 19:18:08,339 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 19:18:08,339 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 19:18:08,339 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 19:18:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 19:18:08,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 370. [2024-09-12 19:18:08,394 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 19:18:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 509 transitions. [2024-09-12 19:18:08,400 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 509 transitions. Word has length 58 [2024-09-12 19:18:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:08,400 INFO L474 AbstractCegarLoop]: Abstraction has 370 states and 509 transitions. [2024-09-12 19:18:08,400 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 19:18:08,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 509 transitions. [2024-09-12 19:18:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-09-12 19:18:08,401 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:08,401 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 19:18:08,413 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 19:18:08,601 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 19:18:08,602 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 19:18:08,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1547084574, now seen corresponding path program 1 times [2024-09-12 19:18:08,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:08,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860868570] [2024-09-12 19:18:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:08,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,655 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,657 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,659 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,661 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-09-12 19:18:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,663 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-09-12 19:18:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:08,665 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 19:18:08,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:08,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860868570] [2024-09-12 19:18:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860868570] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:08,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:08,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:18:08,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029423098] [2024-09-12 19:18:08,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:08,666 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:08,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:08,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:08,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:08,666 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 19:18:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:08,864 INFO L93 Difference]: Finished difference Result 382 states and 521 transitions. [2024-09-12 19:18:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:08,864 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 19:18:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:08,866 INFO L225 Difference]: With dead ends: 382 [2024-09-12 19:18:08,866 INFO L226 Difference]: Without dead ends: 360 [2024-09-12 19:18:08,866 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 19:18:08,866 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 5 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:08,867 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 221 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:18:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-09-12 19:18:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-09-12 19:18:08,931 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 19:18:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 496 transitions. [2024-09-12 19:18:08,933 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 496 transitions. Word has length 61 [2024-09-12 19:18:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:08,933 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 496 transitions. [2024-09-12 19:18:08,933 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 19:18:08,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 496 transitions. [2024-09-12 19:18:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:18:08,934 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:08,934 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 19:18:08,934 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 19:18:08,934 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:08,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2080007857, now seen corresponding path program 2 times [2024-09-12 19:18:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:08,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992894658] [2024-09-12 19:18:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:08,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:08,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425710912] [2024-09-12 19:18:08,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:08,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:08,944 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 19:18:08,945 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 19:18:08,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:18:08,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:08,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:18:08,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:09,049 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 19:18:09,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992894658] [2024-09-12 19:18:09,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425710912] [2024-09-12 19:18:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425710912] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:09,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 19:18:09,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732674223] [2024-09-12 19:18:09,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:09,304 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:09,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:09,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:09,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:18:09,304 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 19:18:09,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:09,478 INFO L93 Difference]: Finished difference Result 455 states and 629 transitions. [2024-09-12 19:18:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:09,478 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 19:18:09,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:09,480 INFO L225 Difference]: With dead ends: 455 [2024-09-12 19:18:09,480 INFO L226 Difference]: Without dead ends: 451 [2024-09-12 19:18:09,481 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 19:18:09,481 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 19:18:09,481 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 19:18:09,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-09-12 19:18:09,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 360. [2024-09-12 19:18:09,535 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 19:18:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 494 transitions. [2024-09-12 19:18:09,537 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 494 transitions. Word has length 70 [2024-09-12 19:18:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:09,537 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 494 transitions. [2024-09-12 19:18:09,537 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 19:18:09,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 494 transitions. [2024-09-12 19:18:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 19:18:09,538 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:09,538 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 19:18:09,550 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:18:09,742 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 19:18:09,742 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:09,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2127022106, now seen corresponding path program 1 times [2024-09-12 19:18:09,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:09,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479022182] [2024-09-12 19:18:09,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:09,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,796 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,800 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,805 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,806 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,811 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:09,813 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 19:18:09,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:09,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479022182] [2024-09-12 19:18:09,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479022182] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:09,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:09,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:18:09,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426583703] [2024-09-12 19:18:09,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:09,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:18:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:09,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:18:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:18:09,815 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 19:18:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:09,909 INFO L93 Difference]: Finished difference Result 360 states and 494 transitions. [2024-09-12 19:18:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:18:09,909 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 19:18:09,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:09,911 INFO L225 Difference]: With dead ends: 360 [2024-09-12 19:18:09,911 INFO L226 Difference]: Without dead ends: 359 [2024-09-12 19:18:09,912 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 19:18:09,912 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:09,912 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:18:09,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-09-12 19:18:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-09-12 19:18:09,960 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 19:18:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 488 transitions. [2024-09-12 19:18:09,962 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 488 transitions. Word has length 77 [2024-09-12 19:18:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:09,962 INFO L474 AbstractCegarLoop]: Abstraction has 359 states and 488 transitions. [2024-09-12 19:18:09,962 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 19:18:09,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,963 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 488 transitions. [2024-09-12 19:18:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-12 19:18:09,963 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:09,963 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 19:18:09,964 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:18:09,964 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:09,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1513175965, now seen corresponding path program 1 times [2024-09-12 19:18:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:09,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993133705] [2024-09-12 19:18:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:09,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,042 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,056 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,058 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,060 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 19:18:10,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:10,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993133705] [2024-09-12 19:18:10,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993133705] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:10,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021756698] [2024-09-12 19:18:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:10,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:10,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:10,063 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 19:18:10,064 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 19:18:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:18:10,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:10,218 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 19:18:10,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:10,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021756698] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:10,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:10,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-09-12 19:18:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028273578] [2024-09-12 19:18:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:10,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:10,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:10,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:18:10,220 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 19:18:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:10,356 INFO L93 Difference]: Finished difference Result 384 states and 513 transitions. [2024-09-12 19:18:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:10,356 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 19:18:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:10,358 INFO L225 Difference]: With dead ends: 384 [2024-09-12 19:18:10,358 INFO L226 Difference]: Without dead ends: 383 [2024-09-12 19:18:10,358 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:18:10,359 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 19:18:10,359 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 19:18:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-09-12 19:18:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 359. [2024-09-12 19:18:10,410 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 19:18:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 485 transitions. [2024-09-12 19:18:10,411 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 485 transitions. Word has length 78 [2024-09-12 19:18:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:10,412 INFO L474 AbstractCegarLoop]: Abstraction has 359 states and 485 transitions. [2024-09-12 19:18:10,412 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 19:18:10,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 485 transitions. [2024-09-12 19:18:10,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 19:18:10,413 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:10,413 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 19:18:10,427 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 19:18:10,613 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 19:18:10,613 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:10,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:10,614 INFO L85 PathProgramCache]: Analyzing trace with hash -336185220, now seen corresponding path program 1 times [2024-09-12 19:18:10,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:10,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255613042] [2024-09-12 19:18:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,685 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,687 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,690 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,692 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,695 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,706 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 19:18:10,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255613042] [2024-09-12 19:18:10,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255613042] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:10,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134786076] [2024-09-12 19:18:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:10,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:10,708 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 19:18:10,709 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 19:18:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:10,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:10,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:10,836 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 19:18:10,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134786076] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:10,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:10,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:18:10,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262330261] [2024-09-12 19:18:10,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:10,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:10,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:10,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:18:10,838 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 19:18:10,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:10,999 INFO L93 Difference]: Finished difference Result 359 states and 485 transitions. [2024-09-12 19:18:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:10,999 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 19:18:10,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:11,001 INFO L225 Difference]: With dead ends: 359 [2024-09-12 19:18:11,001 INFO L226 Difference]: Without dead ends: 358 [2024-09-12 19:18:11,001 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 19:18:11,002 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 19:18:11,002 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 19:18:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-09-12 19:18:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-09-12 19:18:11,047 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 19:18:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 479 transitions. [2024-09-12 19:18:11,049 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 479 transitions. Word has length 79 [2024-09-12 19:18:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:11,049 INFO L474 AbstractCegarLoop]: Abstraction has 358 states and 479 transitions. [2024-09-12 19:18:11,049 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 19:18:11,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:11,049 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 479 transitions. [2024-09-12 19:18:11,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-09-12 19:18:11,050 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:11,050 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 19:18:11,062 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 19:18:11,250 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 19:18:11,250 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:11,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:11,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1831807105, now seen corresponding path program 1 times [2024-09-12 19:18:11,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:11,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711347377] [2024-09-12 19:18:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:11,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,361 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 19:18:11,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:11,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711347377] [2024-09-12 19:18:11,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711347377] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:11,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850159382] [2024-09-12 19:18:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:11,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:11,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:11,364 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 19:18:11,364 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 19:18:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:11,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:18:11,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:11,492 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 19:18:11,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:11,770 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 19:18:11,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850159382] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:11,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:11,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2024-09-12 19:18:11,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913019526] [2024-09-12 19:18:11,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:11,771 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:18:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:11,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:18:11,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:18:11,772 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 19:18:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:12,082 INFO L93 Difference]: Finished difference Result 502 states and 657 transitions. [2024-09-12 19:18:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:18:12,083 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 19:18:12,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:12,085 INFO L225 Difference]: With dead ends: 502 [2024-09-12 19:18:12,085 INFO L226 Difference]: Without dead ends: 430 [2024-09-12 19:18:12,085 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 19:18:12,085 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 73 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:12,085 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 328 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:12,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-09-12 19:18:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 406. [2024-09-12 19:18:12,152 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 19:18:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 539 transitions. [2024-09-12 19:18:12,154 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 539 transitions. Word has length 80 [2024-09-12 19:18:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:12,155 INFO L474 AbstractCegarLoop]: Abstraction has 406 states and 539 transitions. [2024-09-12 19:18:12,156 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 19:18:12,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 539 transitions. [2024-09-12 19:18:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:18:12,157 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:12,157 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 19:18:12,169 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:18:12,357 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 19:18:12,358 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:12,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash 569966177, now seen corresponding path program 1 times [2024-09-12 19:18:12,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386578720] [2024-09-12 19:18:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:12,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292127813] [2024-09-12 19:18:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:12,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:12,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:12,378 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 19:18:12,379 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 19:18:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:12,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:12,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:12,463 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 19:18:12,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:12,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386578720] [2024-09-12 19:18:12,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:12,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292127813] [2024-09-12 19:18:12,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292127813] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:12,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:12,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:18:12,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626924588] [2024-09-12 19:18:12,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:12,464 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:12,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:12,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:12,465 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 19:18:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:12,637 INFO L93 Difference]: Finished difference Result 406 states and 539 transitions. [2024-09-12 19:18:12,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:18:12,638 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 19:18:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:12,640 INFO L225 Difference]: With dead ends: 406 [2024-09-12 19:18:12,640 INFO L226 Difference]: Without dead ends: 405 [2024-09-12 19:18:12,641 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 19:18:12,641 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 19:18:12,641 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 19:18:12,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-09-12 19:18:12,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-09-12 19:18:12,704 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 19:18:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 529 transitions. [2024-09-12 19:18:12,705 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 529 transitions. Word has length 82 [2024-09-12 19:18:12,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:12,706 INFO L474 AbstractCegarLoop]: Abstraction has 405 states and 529 transitions. [2024-09-12 19:18:12,706 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 19:18:12,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:12,706 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 529 transitions. [2024-09-12 19:18:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-09-12 19:18:12,706 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:12,707 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 19:18:12,719 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:18:12,907 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 19:18:12,907 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:12,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash 489082392, now seen corresponding path program 1 times [2024-09-12 19:18:12,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:12,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582991262] [2024-09-12 19:18:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:12,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952133631] [2024-09-12 19:18:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:12,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:12,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:12,929 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 19:18:12,930 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 19:18:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:12,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:12,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:13,033 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 19:18:13,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582991262] [2024-09-12 19:18:13,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952133631] [2024-09-12 19:18:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952133631] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:13,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:13,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:18:13,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159097353] [2024-09-12 19:18:13,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:13,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:13,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:18:13,035 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 19:18:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:13,157 INFO L93 Difference]: Finished difference Result 405 states and 529 transitions. [2024-09-12 19:18:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:13,157 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 19:18:13,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:13,161 INFO L225 Difference]: With dead ends: 405 [2024-09-12 19:18:13,161 INFO L226 Difference]: Without dead ends: 404 [2024-09-12 19:18:13,161 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 19:18:13,162 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 19:18:13,162 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 19:18:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-09-12 19:18:13,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-09-12 19:18:13,233 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 19:18:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 519 transitions. [2024-09-12 19:18:13,235 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 519 transitions. Word has length 83 [2024-09-12 19:18:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:13,235 INFO L474 AbstractCegarLoop]: Abstraction has 404 states and 519 transitions. [2024-09-12 19:18:13,235 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 19:18:13,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 519 transitions. [2024-09-12 19:18:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 19:18:13,236 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:13,236 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 19:18:13,248 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:18:13,440 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 19:18:13,441 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:13,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2018314941, now seen corresponding path program 1 times [2024-09-12 19:18:13,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:13,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745012068] [2024-09-12 19:18:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:13,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,505 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,508 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:13,512 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 19:18:13,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:13,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745012068] [2024-09-12 19:18:13,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745012068] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:13,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:13,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:18:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847249050] [2024-09-12 19:18:13,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:13,513 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:13,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:13,513 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 19:18:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:13,849 INFO L93 Difference]: Finished difference Result 415 states and 529 transitions. [2024-09-12 19:18:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:18:13,849 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 19:18:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:13,858 INFO L225 Difference]: With dead ends: 415 [2024-09-12 19:18:13,859 INFO L226 Difference]: Without dead ends: 414 [2024-09-12 19:18:13,859 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 19:18:13,859 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 54 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:13,859 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 195 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-09-12 19:18:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 403. [2024-09-12 19:18:13,929 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 19:18:13,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 512 transitions. [2024-09-12 19:18:13,931 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 512 transitions. Word has length 84 [2024-09-12 19:18:13,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:13,931 INFO L474 AbstractCegarLoop]: Abstraction has 403 states and 512 transitions. [2024-09-12 19:18:13,931 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 19:18:13,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:13,931 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 512 transitions. [2024-09-12 19:18:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:18:13,932 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:13,932 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 19:18:13,932 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-09-12 19:18:13,932 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:13,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1856746362, now seen corresponding path program 1 times [2024-09-12 19:18:13,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:13,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431931820] [2024-09-12 19:18:13,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:13,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,028 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,032 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,036 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 19:18:14,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431931820] [2024-09-12 19:18:14,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431931820] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582123917] [2024-09-12 19:18:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:14,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:14,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:14,038 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 19:18:14,039 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 19:18:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:14,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:18:14,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:14,246 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 19:18:14,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:22,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582123917] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:22,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:18:22,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 19:18:22,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409773028] [2024-09-12 19:18:22,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:22,568 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:18:22,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:22,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:18:22,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=220, Unknown=2, NotChecked=0, Total=272 [2024-09-12 19:18:22,569 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 19:18:23,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:23,613 INFO L93 Difference]: Finished difference Result 600 states and 792 transitions. [2024-09-12 19:18:23,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:18:23,614 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 19:18:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:23,616 INFO L225 Difference]: With dead ends: 600 [2024-09-12 19:18:23,616 INFO L226 Difference]: Without dead ends: 596 [2024-09-12 19:18:23,617 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=226, Invalid=764, Unknown=2, NotChecked=0, Total=992 [2024-09-12 19:18:23,618 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 368 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 19:18:23,618 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 19:18:23,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-09-12 19:18:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 450. [2024-09-12 19:18:23,712 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 19:18:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 573 transitions. [2024-09-12 19:18:23,714 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 573 transitions. Word has length 85 [2024-09-12 19:18:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:23,715 INFO L474 AbstractCegarLoop]: Abstraction has 450 states and 573 transitions. [2024-09-12 19:18:23,715 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 19:18:23,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 573 transitions. [2024-09-12 19:18:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-09-12 19:18:23,716 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:23,716 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 19:18:23,728 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:18:23,919 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 19:18:23,919 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 19:18:23,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash 43945702, now seen corresponding path program 1 times [2024-09-12 19:18:23,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:23,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709850392] [2024-09-12 19:18:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:23,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501591940] [2024-09-12 19:18:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:23,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:23,932 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 19:18:23,933 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 19:18:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:23,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:18:23,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:24,313 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 19:18:24,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:25,977 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 19:18:25,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:25,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709850392] [2024-09-12 19:18:25,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:25,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501591940] [2024-09-12 19:18:25,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501591940] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:25,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:18:25,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2024-09-12 19:18:25,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975309137] [2024-09-12 19:18:25,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:25,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:18:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:25,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:18:25,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:18:25,979 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 19:18:27,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:27,432 INFO L93 Difference]: Finished difference Result 507 states and 639 transitions. [2024-09-12 19:18:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 19:18:27,432 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 19:18:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:27,434 INFO L225 Difference]: With dead ends: 507 [2024-09-12 19:18:27,434 INFO L226 Difference]: Without dead ends: 505 [2024-09-12 19:18:27,435 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:18:27,435 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 138 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:27,435 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 353 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:18:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-09-12 19:18:27,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 498. [2024-09-12 19:18:27,563 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 19:18:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 626 transitions. [2024-09-12 19:18:27,565 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 626 transitions. Word has length 89 [2024-09-12 19:18:27,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:27,565 INFO L474 AbstractCegarLoop]: Abstraction has 498 states and 626 transitions. [2024-09-12 19:18:27,566 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 19:18:27,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 626 transitions. [2024-09-12 19:18:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 19:18:27,567 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:27,567 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 19:18:27,581 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:18:27,771 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 19:18:27,772 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:27,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1579711326, now seen corresponding path program 3 times [2024-09-12 19:18:27,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:27,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012048943] [2024-09-12 19:18:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:27,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629922358] [2024-09-12 19:18:27,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:18:27,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:27,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:27,784 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 19:18:27,785 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 19:18:27,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:18:27,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:27,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:27,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:27,867 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 19:18:27,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:27,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012048943] [2024-09-12 19:18:27,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629922358] [2024-09-12 19:18:27,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629922358] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:27,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:27,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:18:27,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994878489] [2024-09-12 19:18:27,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:27,868 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:18:27,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:27,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:18:27,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:18:27,869 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 19:18:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:28,035 INFO L93 Difference]: Finished difference Result 498 states and 626 transitions. [2024-09-12 19:18:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:18:28,035 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 19:18:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:28,037 INFO L225 Difference]: With dead ends: 498 [2024-09-12 19:18:28,037 INFO L226 Difference]: Without dead ends: 495 [2024-09-12 19:18:28,038 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 19:18:28,038 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 19:18:28,038 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 19:18:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-09-12 19:18:28,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 414. [2024-09-12 19:18:28,152 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 19:18:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 503 transitions. [2024-09-12 19:18:28,153 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 503 transitions. Word has length 93 [2024-09-12 19:18:28,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:28,154 INFO L474 AbstractCegarLoop]: Abstraction has 414 states and 503 transitions. [2024-09-12 19:18:28,154 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 19:18:28,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:28,154 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 503 transitions. [2024-09-12 19:18:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-09-12 19:18:28,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:28,155 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 19:18:28,168 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:18:28,355 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 19:18:28,356 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 19:18:28,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:28,356 INFO L85 PathProgramCache]: Analyzing trace with hash 645765421, now seen corresponding path program 2 times [2024-09-12 19:18:28,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:28,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28226521] [2024-09-12 19:18:28,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:28,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354606005] [2024-09-12 19:18:28,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:28,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:28,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:28,375 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 19:18:28,378 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 19:18:28,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:18:28,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:28,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 19:18:28,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:28,603 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 19:18:28,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:29,640 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 19:18:29,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:29,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28226521] [2024-09-12 19:18:29,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:29,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354606005] [2024-09-12 19:18:29,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354606005] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:29,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:18:29,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2024-09-12 19:18:29,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981193548] [2024-09-12 19:18:29,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:29,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:18:29,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:29,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:18:29,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:18:29,642 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 19:18:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:31,322 INFO L93 Difference]: Finished difference Result 450 states and 532 transitions. [2024-09-12 19:18:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:18:31,322 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 19:18:31,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:31,324 INFO L225 Difference]: With dead ends: 450 [2024-09-12 19:18:31,324 INFO L226 Difference]: Without dead ends: 349 [2024-09-12 19:18:31,324 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 19:18:31,325 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 29 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:31,325 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 278 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:18:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-09-12 19:18:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-09-12 19:18:31,423 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 19:18:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 412 transitions. [2024-09-12 19:18:31,425 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 412 transitions. Word has length 96 [2024-09-12 19:18:31,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:31,425 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 412 transitions. [2024-09-12 19:18:31,425 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 19:18:31,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 412 transitions. [2024-09-12 19:18:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:18:31,426 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:31,426 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 19:18:31,438 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 19:18:31,626 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 19:18:31,627 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:31,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash 844039737, now seen corresponding path program 1 times [2024-09-12 19:18:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360365458] [2024-09-12 19:18:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:31,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952450541] [2024-09-12 19:18:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:31,649 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 19:18:31,650 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 19:18:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:31,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:18:31,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:31,864 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 19:18:31,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:32,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360365458] [2024-09-12 19:18:32,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952450541] [2024-09-12 19:18:32,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952450541] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:32,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:32,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:18:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829375546] [2024-09-12 19:18:32,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:32,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:18:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:32,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:18:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:18:32,203 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 19:18:32,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:32,559 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2024-09-12 19:18:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:18:32,559 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 19:18:32,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:32,561 INFO L225 Difference]: With dead ends: 352 [2024-09-12 19:18:32,561 INFO L226 Difference]: Without dead ends: 351 [2024-09-12 19:18:32,561 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:18:32,561 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:32,562 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 264 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:32,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-09-12 19:18:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2024-09-12 19:18:32,675 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 19:18:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 411 transitions. [2024-09-12 19:18:32,677 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 411 transitions. Word has length 99 [2024-09-12 19:18:32,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:32,677 INFO L474 AbstractCegarLoop]: Abstraction has 349 states and 411 transitions. [2024-09-12 19:18:32,677 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 19:18:32,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:32,678 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 411 transitions. [2024-09-12 19:18:32,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:18:32,679 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:32,679 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 19:18:32,693 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 19:18:32,879 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 19:18:32,879 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:32,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:32,880 INFO L85 PathProgramCache]: Analyzing trace with hash -626627429, now seen corresponding path program 1 times [2024-09-12 19:18:32,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:32,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303322745] [2024-09-12 19:18:32,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:32,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,929 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,934 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,935 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,936 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,937 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,938 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,940 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 19:18:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,941 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:18:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:32,943 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 19:18:32,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:32,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303322745] [2024-09-12 19:18:32,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303322745] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:32,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:18:32,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:18:32,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326693101] [2024-09-12 19:18:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:32,944 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:18:32,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:32,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:18:32,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:18:32,945 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 19:18:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:33,358 INFO L93 Difference]: Finished difference Result 356 states and 418 transitions. [2024-09-12 19:18:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:18:33,359 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 19:18:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:33,360 INFO L225 Difference]: With dead ends: 356 [2024-09-12 19:18:33,360 INFO L226 Difference]: Without dead ends: 355 [2024-09-12 19:18:33,360 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:18:33,361 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 19:18:33,361 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 19:18:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-09-12 19:18:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 348. [2024-09-12 19:18:33,456 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 19:18:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2024-09-12 19:18:33,457 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 101 [2024-09-12 19:18:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:33,457 INFO L474 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2024-09-12 19:18:33,457 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 19:18:33,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2024-09-12 19:18:33,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:18:33,458 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:33,458 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 19:18:33,458 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-09-12 19:18:33,458 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:33,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:33,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2063778163, now seen corresponding path program 1 times [2024-09-12 19:18:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:33,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848554696] [2024-09-12 19:18:33,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:33,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,501 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,503 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,504 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,506 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,507 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,511 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,513 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,515 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,519 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:18:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,521 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:18:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,522 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 19:18:33,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:33,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848554696] [2024-09-12 19:18:33,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848554696] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:33,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60870740] [2024-09-12 19:18:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:33,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:33,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:33,524 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 19:18:33,526 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 19:18:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:33,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:33,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:33,609 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 19:18:33,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:33,708 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 19:18:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60870740] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:33,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:33,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-12 19:18:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003959077] [2024-09-12 19:18:33,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:33,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:18:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:33,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:18:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:18:33,710 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 19:18:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:34,074 INFO L93 Difference]: Finished difference Result 727 states and 887 transitions. [2024-09-12 19:18:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:18:34,074 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 19:18:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:34,077 INFO L225 Difference]: With dead ends: 727 [2024-09-12 19:18:34,077 INFO L226 Difference]: Without dead ends: 726 [2024-09-12 19:18:34,077 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 19:18:34,077 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:34,077 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 371 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:18:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-09-12 19:18:34,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 394. [2024-09-12 19:18:34,213 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 19:18:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 475 transitions. [2024-09-12 19:18:34,218 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 475 transitions. Word has length 103 [2024-09-12 19:18:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:34,218 INFO L474 AbstractCegarLoop]: Abstraction has 394 states and 475 transitions. [2024-09-12 19:18:34,218 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 19:18:34,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 475 transitions. [2024-09-12 19:18:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-09-12 19:18:34,219 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:34,219 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 19:18:34,230 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:18:34,422 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 19:18:34,422 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 19:18:34,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash 953535030, now seen corresponding path program 1 times [2024-09-12 19:18:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356513481] [2024-09-12 19:18:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:34,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852410614] [2024-09-12 19:18:34,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:34,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:34,435 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 19:18:34,436 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 19:18:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:34,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:18:34,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:34,797 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 19:18:34,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:35,355 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 19:18:35,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:35,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356513481] [2024-09-12 19:18:35,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:35,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852410614] [2024-09-12 19:18:35,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852410614] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:35,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:18:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2024-09-12 19:18:35,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680401732] [2024-09-12 19:18:35,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:35,356 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-12 19:18:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-12 19:18:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:18:35,357 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 19:18:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:36,778 INFO L93 Difference]: Finished difference Result 434 states and 519 transitions. [2024-09-12 19:18:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:18:36,778 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 19:18:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:36,780 INFO L225 Difference]: With dead ends: 434 [2024-09-12 19:18:36,780 INFO L226 Difference]: Without dead ends: 432 [2024-09-12 19:18:36,780 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 19:18:36,780 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 188 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:36,781 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 345 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:18:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-09-12 19:18:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 397. [2024-09-12 19:18:36,941 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 19:18:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 480 transitions. [2024-09-12 19:18:36,943 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 480 transitions. Word has length 106 [2024-09-12 19:18:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:36,943 INFO L474 AbstractCegarLoop]: Abstraction has 397 states and 480 transitions. [2024-09-12 19:18:36,943 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 19:18:36,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 480 transitions. [2024-09-12 19:18:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 19:18:36,944 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:36,944 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 19:18:36,956 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:18:37,148 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 19:18:37,149 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 19:18:37,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1807044501, now seen corresponding path program 1 times [2024-09-12 19:18:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963002301] [2024-09-12 19:18:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:37,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,255 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,258 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,262 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,263 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-09-12 19:18:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,264 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 19:18:37,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:37,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963002301] [2024-09-12 19:18:37,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963002301] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:37,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600311878] [2024-09-12 19:18:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:37,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:37,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:37,266 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 19:18:37,266 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 19:18:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:37,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:18:37,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:37,442 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 19:18:37,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:18:37,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600311878] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:18:37,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:37,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-09-12 19:18:37,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690749004] [2024-09-12 19:18:37,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:18:37,444 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:18:37,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:18:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:18:37,445 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 19:18:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:37,672 INFO L93 Difference]: Finished difference Result 494 states and 587 transitions. [2024-09-12 19:18:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:18:37,672 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 19:18:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:37,673 INFO L225 Difference]: With dead ends: 494 [2024-09-12 19:18:37,674 INFO L226 Difference]: Without dead ends: 337 [2024-09-12 19:18:37,674 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 19:18:37,674 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 19:18:37,674 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 19:18:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-09-12 19:18:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 332. [2024-09-12 19:18:37,817 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 19:18:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 394 transitions. [2024-09-12 19:18:37,818 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 394 transitions. Word has length 107 [2024-09-12 19:18:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:37,819 INFO L474 AbstractCegarLoop]: Abstraction has 332 states and 394 transitions. [2024-09-12 19:18:37,819 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 19:18:37,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 394 transitions. [2024-09-12 19:18:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:18:37,820 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:37,820 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 19:18:37,831 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 19:18:38,020 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 19:18:38,020 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:38,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash -910913141, now seen corresponding path program 2 times [2024-09-12 19:18:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:38,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448578912] [2024-09-12 19:18:38,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:38,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606943823] [2024-09-12 19:18:38,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:38,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:38,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:38,037 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 19:18:38,038 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 19:18:38,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:18:38,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:38,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:18:38,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:38,435 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 19:18:38,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:39,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:39,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448578912] [2024-09-12 19:18:39,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:18:39,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606943823] [2024-09-12 19:18:39,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606943823] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:39,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:18:39,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-09-12 19:18:39,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833445103] [2024-09-12 19:18:39,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:39,026 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:18:39,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:39,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:18:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:18:39,027 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 19:18:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:39,469 INFO L93 Difference]: Finished difference Result 392 states and 472 transitions. [2024-09-12 19:18:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:18:39,469 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 19:18:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:39,470 INFO L225 Difference]: With dead ends: 392 [2024-09-12 19:18:39,470 INFO L226 Difference]: Without dead ends: 391 [2024-09-12 19:18:39,471 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:18:39,471 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 52 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:39,471 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 380 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:39,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-09-12 19:18:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 356. [2024-09-12 19:18:39,634 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 19:18:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 420 transitions. [2024-09-12 19:18:39,636 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 420 transitions. Word has length 108 [2024-09-12 19:18:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:39,636 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 420 transitions. [2024-09-12 19:18:39,636 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 19:18:39,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 420 transitions. [2024-09-12 19:18:39,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:18:39,636 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:39,637 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 19:18:39,647 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 19:18:39,837 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 19:18:39,837 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 19:18:39,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:39,837 INFO L85 PathProgramCache]: Analyzing trace with hash 744239259, now seen corresponding path program 1 times [2024-09-12 19:18:39,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:39,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183161840] [2024-09-12 19:18:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:39,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,070 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,076 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:18:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-09-12 19:18:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-09-12 19:18:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-09-12 19:18:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,096 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 19:18:40,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183161840] [2024-09-12 19:18:40,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183161840] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732845538] [2024-09-12 19:18:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:40,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:40,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:40,098 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 19:18:40,099 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 19:18:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:40,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-12 19:18:40,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:40,349 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 19:18:40,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:40,806 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 19:18:40,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732845538] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:40,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:40,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 11] total 23 [2024-09-12 19:18:40,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940630891] [2024-09-12 19:18:40,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:40,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:18:40,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:18:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:18:40,808 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 19:18:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:41,466 INFO L93 Difference]: Finished difference Result 380 states and 438 transitions. [2024-09-12 19:18:41,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:18:41,467 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 19:18:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:41,468 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:18:41,468 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:18:41,469 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:18:41,469 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:41,469 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 290 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:18:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:18:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-09-12 19:18:41,626 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 19:18:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 377 transitions. [2024-09-12 19:18:41,627 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 377 transitions. Word has length 111 [2024-09-12 19:18:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:41,627 INFO L474 AbstractCegarLoop]: Abstraction has 321 states and 377 transitions. [2024-09-12 19:18:41,627 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 19:18:41,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 377 transitions. [2024-09-12 19:18:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 19:18:41,628 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:41,628 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 19:18:41,641 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 19:18:41,828 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 19:18:41,828 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:41,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:41,829 INFO L85 PathProgramCache]: Analyzing trace with hash -586321270, now seen corresponding path program 2 times [2024-09-12 19:18:41,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:41,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339676287] [2024-09-12 19:18:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:41,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,892 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,894 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,897 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,898 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,901 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,904 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:41,911 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 19:18:41,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:41,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339676287] [2024-09-12 19:18:41,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339676287] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:41,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096213606] [2024-09-12 19:18:41,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:41,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:41,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:41,913 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 19:18:41,914 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 19:18:41,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:18:41,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:41,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:18:41,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:42,017 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 19:18:42,018 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:42,128 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 19:18:42,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096213606] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:42,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:42,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-09-12 19:18:42,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897583541] [2024-09-12 19:18:42,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:42,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:18:42,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:42,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:18:42,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:18:42,130 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 19:18:42,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:42,360 INFO L93 Difference]: Finished difference Result 326 states and 377 transitions. [2024-09-12 19:18:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:18:42,360 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 19:18:42,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:42,361 INFO L225 Difference]: With dead ends: 326 [2024-09-12 19:18:42,361 INFO L226 Difference]: Without dead ends: 319 [2024-09-12 19:18:42,362 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 19:18:42,362 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 19:18:42,362 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 19:18:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-09-12 19:18:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2024-09-12 19:18:42,530 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 19:18:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 369 transitions. [2024-09-12 19:18:42,531 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 369 transitions. Word has length 122 [2024-09-12 19:18:42,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:42,531 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 369 transitions. [2024-09-12 19:18:42,531 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 19:18:42,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 369 transitions. [2024-09-12 19:18:42,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:18:42,532 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:42,532 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 19:18:42,545 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:18:42,732 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 19:18:42,732 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:42,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:42,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2111326116, now seen corresponding path program 2 times [2024-09-12 19:18:42,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:42,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646246844] [2024-09-12 19:18:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:42,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,801 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,808 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,809 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,818 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,819 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,821 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,822 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:18:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,824 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:18:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,826 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:18:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:18:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,830 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-09-12 19:18:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:42,832 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 19:18:42,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646246844] [2024-09-12 19:18:42,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646246844] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317738489] [2024-09-12 19:18:42,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:18:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:42,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:42,834 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 19:18:42,835 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 19:18:42,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:18:42,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:42,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:18:42,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:42,945 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 19:18:42,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:43,076 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 19:18:43,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317738489] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:43,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:43,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 19:18:43,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715144865] [2024-09-12 19:18:43,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:43,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:18:43,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:43,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:18:43,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:18:43,078 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 19:18:43,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:43,603 INFO L93 Difference]: Finished difference Result 358 states and 421 transitions. [2024-09-12 19:18:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:18:43,603 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 19:18:43,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:43,605 INFO L225 Difference]: With dead ends: 358 [2024-09-12 19:18:43,605 INFO L226 Difference]: Without dead ends: 356 [2024-09-12 19:18:43,605 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2024-09-12 19:18:43,606 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 527 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:43,607 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 477 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:18:43,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-09-12 19:18:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 279. [2024-09-12 19:18:43,762 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 19:18:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 314 transitions. [2024-09-12 19:18:43,764 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 314 transitions. Word has length 124 [2024-09-12 19:18:43,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:43,764 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 314 transitions. [2024-09-12 19:18:43,764 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 19:18:43,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:43,764 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 314 transitions. [2024-09-12 19:18:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-09-12 19:18:43,765 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:43,765 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 19:18:43,776 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 19:18:43,965 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 19:18:43,965 INFO L399 AbstractCegarLoop]: === Iteration 39 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:43,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1918855210, now seen corresponding path program 1 times [2024-09-12 19:18:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:43,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288689732] [2024-09-12 19:18:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,100 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,114 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 19:18:44,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:44,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288689732] [2024-09-12 19:18:44,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288689732] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:44,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085075212] [2024-09-12 19:18:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:44,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:44,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:44,116 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 19:18:44,116 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 19:18:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:44,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:18:44,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:44,444 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 19:18:44,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:45,356 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 19:18:45,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085075212] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:45,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:45,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 7] total 26 [2024-09-12 19:18:45,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391303187] [2024-09-12 19:18:45,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:45,357 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:18:45,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:45,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:18:45,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:18:45,358 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 19:18:46,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:46,622 INFO L93 Difference]: Finished difference Result 431 states and 521 transitions. [2024-09-12 19:18:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:18:46,623 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 19:18:46,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:46,624 INFO L225 Difference]: With dead ends: 431 [2024-09-12 19:18:46,624 INFO L226 Difference]: Without dead ends: 429 [2024-09-12 19:18:46,625 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=656, Invalid=2314, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:18:46,625 INFO L434 NwaCegarLoop]: 69 mSDtfsCounter, 1011 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:46,626 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 612 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:18:46,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-09-12 19:18:46,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 346. [2024-09-12 19:18:46,815 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 19:18:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 402 transitions. [2024-09-12 19:18:46,816 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 402 transitions. Word has length 128 [2024-09-12 19:18:46,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:46,816 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 402 transitions. [2024-09-12 19:18:46,817 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 19:18:46,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:46,817 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 402 transitions. [2024-09-12 19:18:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-09-12 19:18:46,817 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:46,818 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 19:18:46,829 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 19:18:47,021 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 19:18:47,022 INFO L399 AbstractCegarLoop]: === Iteration 40 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:47,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:47,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1478882952, now seen corresponding path program 1 times [2024-09-12 19:18:47,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:47,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724760542] [2024-09-12 19:18:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:47,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,147 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:18:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:18:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,150 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:18:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,152 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:18:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,153 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:18:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:18:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:18:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,157 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:18:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:18:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,160 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:18:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,162 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:18:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,163 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:18:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:18:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,166 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:18:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:18:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,169 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 19:18:47,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:18:47,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724760542] [2024-09-12 19:18:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724760542] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:18:47,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830138562] [2024-09-12 19:18:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:47,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:47,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:47,171 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 19:18:47,172 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 19:18:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:18:47,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:18:47,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:47,421 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 19:18:47,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:18:48,223 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 19:18:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830138562] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:18:48,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:18:48,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 20 [2024-09-12 19:18:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864755424] [2024-09-12 19:18:48,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:18:48,224 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:18:48,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:18:48,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:18:48,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=279, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:18:48,225 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 19:18:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:18:49,165 INFO L93 Difference]: Finished difference Result 578 states and 691 transitions. [2024-09-12 19:18:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:18:49,165 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 19:18:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:18:49,167 INFO L225 Difference]: With dead ends: 578 [2024-09-12 19:18:49,167 INFO L226 Difference]: Without dead ends: 577 [2024-09-12 19:18:49,168 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 277 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=447, Invalid=743, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:18:49,168 INFO L434 NwaCegarLoop]: 82 mSDtfsCounter, 307 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:18:49,168 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 527 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:18:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-09-12 19:18:49,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 491. [2024-09-12 19:18:49,449 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 19:18:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 586 transitions. [2024-09-12 19:18:49,450 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 586 transitions. Word has length 130 [2024-09-12 19:18:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:18:49,450 INFO L474 AbstractCegarLoop]: Abstraction has 491 states and 586 transitions. [2024-09-12 19:18:49,450 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 19:18:49,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 586 transitions. [2024-09-12 19:18:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:18:49,451 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:18:49,451 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 19:18:49,462 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-09-12 19:18:49,651 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 19:18:49,652 INFO L399 AbstractCegarLoop]: === Iteration 41 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:18:49,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:18:49,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1683197862, now seen corresponding path program 3 times [2024-09-12 19:18:49,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:18:49,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556264695] [2024-09-12 19:18:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:18:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:18:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:18:49,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124870733] [2024-09-12 19:18:49,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:18:49,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:18:49,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:18:49,665 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 19:18:49,666 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 19:18:49,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:18:49,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:18:49,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:18:49,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:18:50,123 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 19:18:50,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:19:16,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:19:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556264695] [2024-09-12 19:19:16,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:19:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124870733] [2024-09-12 19:19:16,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124870733] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:19:16,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:19:16,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:19:16,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269032933] [2024-09-12 19:19:16,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:19:16,016 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:19:16,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:19:16,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:19:16,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=303, Unknown=3, NotChecked=0, Total=380 [2024-09-12 19:19:16,017 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 19:19:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:19:16,766 INFO L93 Difference]: Finished difference Result 528 states and 631 transitions. [2024-09-12 19:19:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:19:16,767 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 19:19:16,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:19:16,769 INFO L225 Difference]: With dead ends: 528 [2024-09-12 19:19:16,769 INFO L226 Difference]: Without dead ends: 525 [2024-09-12 19:19:16,769 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 25.6s TimeCoverageRelationStatistics Valid=170, Invalid=583, Unknown=3, NotChecked=0, Total=756 [2024-09-12 19:19:16,769 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 141 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:19:16,770 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 213 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:19:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-09-12 19:19:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 464. [2024-09-12 19:19:17,042 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 19:19:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 547 transitions. [2024-09-12 19:19:17,043 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 547 transitions. Word has length 131 [2024-09-12 19:19:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:19:17,043 INFO L474 AbstractCegarLoop]: Abstraction has 464 states and 547 transitions. [2024-09-12 19:19:17,044 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 19:19:17,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 547 transitions. [2024-09-12 19:19:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 19:19:17,044 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:19:17,044 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 19:19:17,056 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 19:19:17,245 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 19:19:17,245 INFO L399 AbstractCegarLoop]: === Iteration 42 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:19:17,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:17,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1570755873, now seen corresponding path program 4 times [2024-09-12 19:19:17,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:19:17,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235690218] [2024-09-12 19:19:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:19:17,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:19:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:19:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:19:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:19:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:19:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:19:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,472 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:19:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:19:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:19:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,475 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:19:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:19:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:19:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,479 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:19:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-09-12 19:19:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-09-12 19:19:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-09-12 19:19:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:19:17,488 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 19:19:17,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:19:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235690218] [2024-09-12 19:19:17,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235690218] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:19:17,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091090153] [2024-09-12 19:19:17,488 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:19:17,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:19:17,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:19:17,490 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 19:19:17,490 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 19:19:17,540 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:19:17,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:19:17,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:19:17,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:19:18,048 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 19:19:18,049 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:19:18,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091090153] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:19:18,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:19:18,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 23 [2024-09-12 19:19:18,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290750179] [2024-09-12 19:19:18,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:19:18,433 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:19:18,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:19:18,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:19:18,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:19:18,434 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 19:19:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:19:19,641 INFO L93 Difference]: Finished difference Result 645 states and 782 transitions. [2024-09-12 19:19:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-09-12 19:19:19,642 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 19:19:19,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:19:19,644 INFO L225 Difference]: With dead ends: 645 [2024-09-12 19:19:19,644 INFO L226 Difference]: Without dead ends: 641 [2024-09-12 19:19:19,644 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=1521, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 19:19:19,644 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 394 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:19:19,645 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 635 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:19:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-09-12 19:19:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 564. [2024-09-12 19:19:19,976 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 19:19:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 674 transitions. [2024-09-12 19:19:19,977 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 674 transitions. Word has length 135 [2024-09-12 19:19:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:19:19,977 INFO L474 AbstractCegarLoop]: Abstraction has 564 states and 674 transitions. [2024-09-12 19:19:19,978 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 19:19:19,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 674 transitions. [2024-09-12 19:19:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-09-12 19:19:19,978 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:19:19,979 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 19:19:19,990 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-09-12 19:19:20,179 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 19:19:20,179 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 19:19:20,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:19:20,179 INFO L85 PathProgramCache]: Analyzing trace with hash 835421453, now seen corresponding path program 3 times [2024-09-12 19:19:20,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:19:20,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517640366] [2024-09-12 19:19:20,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:19:20,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:19:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:19:20,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945661970] [2024-09-12 19:19:20,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:19:20,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:19:20,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:19:20,199 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 19:19:20,200 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 19:19:20,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 19:19:20,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:19:20,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-09-12 19:19:20,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:19:20,828 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 19:19:20,828 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:19:40,391 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 19:19:40,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:19:40,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517640366] [2024-09-12 19:19:40,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:19:40,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945661970] [2024-09-12 19:19:40,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945661970] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:19:40,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:19:40,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-09-12 19:19:40,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119126231] [2024-09-12 19:19:40,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:19:40,392 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:19:40,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:19:40,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:19:40,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=920, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:19:40,393 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 19:19:59,054 WARN L293 SmtUtils]: Spent 15.70s 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 19:20:10,483 WARN L293 SmtUtils]: Spent 10.51s 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 19:20:17,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:20:35,862 WARN L293 SmtUtils]: Spent 17.34s 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 19:20:36,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:20:36,885 INFO L93 Difference]: Finished difference Result 853 states and 1026 transitions. [2024-09-12 19:20:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 19:20:36,886 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 19:20:36,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:20:36,888 INFO L225 Difference]: With dead ends: 853 [2024-09-12 19:20:36,888 INFO L226 Difference]: Without dead ends: 647 [2024-09-12 19:20:36,890 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 51.6s TimeCoverageRelationStatistics Valid=311, Invalid=2040, Unknown=1, NotChecked=0, Total=2352 [2024-09-12 19:20:36,890 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 216 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:20:36,890 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 696 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-09-12 19:20:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-09-12 19:20:37,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 635. [2024-09-12 19:20:37,335 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 19:20:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 754 transitions. [2024-09-12 19:20:37,337 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 754 transitions. Word has length 139 [2024-09-12 19:20:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:20:37,338 INFO L474 AbstractCegarLoop]: Abstraction has 635 states and 754 transitions. [2024-09-12 19:20:37,338 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 19:20:37,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 754 transitions. [2024-09-12 19:20:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-09-12 19:20:37,339 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:20:37,339 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 19:20:37,353 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 19:20:37,539 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 19:20:37,540 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 19:20:37,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:20:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash 37599526, now seen corresponding path program 4 times [2024-09-12 19:20:37,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:20:37,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021097923] [2024-09-12 19:20:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:20:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:20:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:20:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631757468] [2024-09-12 19:20:37,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:20:37,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:20:37,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:20:37,560 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 19:20:37,562 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 19:20:37,614 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:20:37,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:20:37,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-09-12 19:20:37,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:20:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 105 proven. 57 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-09-12 19:20:38,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:21:12,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:21:12,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021097923] [2024-09-12 19:21:12,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:21:12,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631757468] [2024-09-12 19:21:12,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631757468] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:21:12,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:21:12,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-09-12 19:21:12,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272813439] [2024-09-12 19:21:12,833 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:21:12,833 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:21:12,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:21:12,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:21:12,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=434, Unknown=3, NotChecked=0, Total=506 [2024-09-12 19:21:12,834 INFO L87 Difference]: Start difference. First operand 635 states and 754 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 19:21:17,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:21:17,150 INFO L93 Difference]: Finished difference Result 649 states and 765 transitions. [2024-09-12 19:21:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:21:17,151 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 146 [2024-09-12 19:21:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:21:17,153 INFO L225 Difference]: With dead ends: 649 [2024-09-12 19:21:17,153 INFO L226 Difference]: Without dead ends: 646 [2024-09-12 19:21:17,153 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=139, Invalid=728, Unknown=3, NotChecked=0, Total=870 [2024-09-12 19:21:17,154 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 33 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:21:17,154 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 365 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-09-12 19:21:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-09-12 19:21:17,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2024-09-12 19:21:17,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 537 states have (on average 1.106145251396648) internal successors, (594), 550 states have internal predecessors, (594), 79 states have call successors, (79), 24 states have call predecessors, (79), 23 states have return successors, (77), 71 states have call predecessors, (77), 77 states have call successors, (77) [2024-09-12 19:21:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 750 transitions. [2024-09-12 19:21:17,638 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 750 transitions. Word has length 146 [2024-09-12 19:21:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:21:17,638 INFO L474 AbstractCegarLoop]: Abstraction has 646 states and 750 transitions. [2024-09-12 19:21:17,639 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 13 states have internal predecessors, (76), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-09-12 19:21:17,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 750 transitions. [2024-09-12 19:21:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-09-12 19:21:17,639 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:21:17,640 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 19:21:17,652 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 19:21:17,840 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 19:21:17,840 INFO L399 AbstractCegarLoop]: === Iteration 45 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:21:17,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:17,840 INFO L85 PathProgramCache]: Analyzing trace with hash -854083680, now seen corresponding path program 3 times [2024-09-12 19:21:17,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:21:17,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474298004] [2024-09-12 19:21:17,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:17,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:21:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:21:17,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913431298] [2024-09-12 19:21:17,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:21:17,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:21:17,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:21:17,863 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 19:21:17,864 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 19:21:17,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:21:17,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:21:17,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:21:17,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:21:19,035 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 19:21:19,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:21:20,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:21:20,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474298004] [2024-09-12 19:21:20,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:21:20,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913431298] [2024-09-12 19:21:20,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913431298] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:21:20,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:21:20,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-09-12 19:21:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857941531] [2024-09-12 19:21:20,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:21:20,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 19:21:20,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:21:20,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 19:21:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:21:20,221 INFO L87 Difference]: Start difference. First operand 646 states and 750 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 19:21:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:21:21,985 INFO L93 Difference]: Finished difference Result 646 states and 750 transitions. [2024-09-12 19:21:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:21:21,985 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 19:21:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:21:21,987 INFO L225 Difference]: With dead ends: 646 [2024-09-12 19:21:21,987 INFO L226 Difference]: Without dead ends: 645 [2024-09-12 19:21:21,988 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:21:21,988 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 77 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:21:21,988 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 133 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 19:21:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-09-12 19:21:22,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 644. [2024-09-12 19:21:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 536 states have (on average 1.1026119402985075) internal successors, (591), 548 states have internal predecessors, (591), 79 states have call successors, (79), 24 states have call predecessors, (79), 23 states have return successors, (77), 71 states have call predecessors, (77), 77 states have call successors, (77) [2024-09-12 19:21:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 747 transitions. [2024-09-12 19:21:22,443 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 747 transitions. Word has length 149 [2024-09-12 19:21:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:21:22,443 INFO L474 AbstractCegarLoop]: Abstraction has 644 states and 747 transitions. [2024-09-12 19:21:22,443 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 19:21:22,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:22,444 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 747 transitions. [2024-09-12 19:21:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-09-12 19:21:22,444 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:21:22,444 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 19:21:22,456 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-09-12 19:21:22,645 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 19:21:22,645 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 19:21:22,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:22,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1551091659, now seen corresponding path program 1 times [2024-09-12 19:21:22,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:21:22,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744752883] [2024-09-12 19:21:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:21:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:21:22,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457463072] [2024-09-12 19:21:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:22,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:21:22,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:21:22,659 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 19:21:22,661 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 19:21:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:22,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-09-12 19:21:22,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:21:27,761 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 19:21:27,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:21:37,966 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 19:21:37,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:21:37,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744752883] [2024-09-12 19:21:37,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:21:37,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457463072] [2024-09-12 19:21:37,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457463072] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:21:37,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:21:37,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2024-09-12 19:21:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373436452] [2024-09-12 19:21:37,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:21:37,967 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:21:37,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:21:37,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:21:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:21:37,968 INFO L87 Difference]: Start difference. First operand 644 states and 747 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 19:21:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:21:57,398 INFO L93 Difference]: Finished difference Result 702 states and 804 transitions. [2024-09-12 19:21:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-09-12 19:21:57,398 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 19:21:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:21:57,401 INFO L225 Difference]: With dead ends: 702 [2024-09-12 19:21:57,401 INFO L226 Difference]: Without dead ends: 667 [2024-09-12 19:21:57,402 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=666, Invalid=3756, Unknown=0, NotChecked=0, Total=4422 [2024-09-12 19:21:57,402 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 300 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:21:57,402 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 470 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-09-12 19:21:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-09-12 19:21:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 645. [2024-09-12 19:21:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 536 states have (on average 1.0970149253731343) internal successors, (588), 547 states have internal predecessors, (588), 76 states have call successors, (76), 28 states have call predecessors, (76), 27 states have return successors, (75), 69 states have call predecessors, (75), 75 states have call successors, (75) [2024-09-12 19:21:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 739 transitions. [2024-09-12 19:21:57,904 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 739 transitions. Word has length 152 [2024-09-12 19:21:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:21:57,904 INFO L474 AbstractCegarLoop]: Abstraction has 645 states and 739 transitions. [2024-09-12 19:21:57,904 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 19:21:57,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 739 transitions. [2024-09-12 19:21:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-09-12 19:21:57,905 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:21:57,905 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 19:21:57,918 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 19:21:58,109 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 19:21:58,110 INFO L399 AbstractCegarLoop]: === Iteration 47 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:21:58,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:21:58,110 INFO L85 PathProgramCache]: Analyzing trace with hash 112340210, now seen corresponding path program 5 times [2024-09-12 19:21:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:21:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477223585] [2024-09-12 19:21:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:21:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:21:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,267 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:21:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,269 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:21:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:21:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:21:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:21:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:21:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:21:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:21:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:21:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:21:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:21:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:21:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:21:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:21:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:21:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:21:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:21:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:21:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:21:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-09-12 19:21:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:21:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477223585] [2024-09-12 19:21:59,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477223585] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:21:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814523978] [2024-09-12 19:21:59,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 19:21:59,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:21:59,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:21:59,472 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 19:21:59,473 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 19:21:59,526 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-12 19:21:59,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:21:59,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-09-12 19:21:59,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:22:06,079 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 19:22:06,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:22:08,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814523978] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:22:08,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:22:08,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 33 [2024-09-12 19:22:08,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275324821] [2024-09-12 19:22:08,753 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:22:08,754 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:22:08,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:22:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:22:08,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-09-12 19:22:08,755 INFO L87 Difference]: Start difference. First operand 645 states and 739 transitions. Second operand has 34 states, 33 states have (on average 4.545454545454546) internal successors, (150), 33 states have internal predecessors, (150), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-09-12 19:22:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:22:28,002 INFO L93 Difference]: Finished difference Result 960 states and 1105 transitions. [2024-09-12 19:22:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-09-12 19:22:28,003 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.545454545454546) internal successors, (150), 33 states have internal predecessors, (150), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) Word has length 158 [2024-09-12 19:22:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:22:28,006 INFO L225 Difference]: With dead ends: 960 [2024-09-12 19:22:28,006 INFO L226 Difference]: Without dead ends: 674 [2024-09-12 19:22:28,007 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=634, Invalid=4622, Unknown=0, NotChecked=0, Total=5256 [2024-09-12 19:22:28,008 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 653 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:22:28,008 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1067 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-09-12 19:22:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-09-12 19:22:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 574. [2024-09-12 19:22:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 478 states have (on average 1.100418410041841) internal successors, (526), 486 states have internal predecessors, (526), 63 states have call successors, (63), 28 states have call predecessors, (63), 27 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-09-12 19:22:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 651 transitions. [2024-09-12 19:22:28,380 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 651 transitions. Word has length 158 [2024-09-12 19:22:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:22:28,380 INFO L474 AbstractCegarLoop]: Abstraction has 574 states and 651 transitions. [2024-09-12 19:22:28,380 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.545454545454546) internal successors, (150), 33 states have internal predecessors, (150), 14 states have call successors, (35), 1 states have call predecessors, (35), 3 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2024-09-12 19:22:28,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:22:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 651 transitions. [2024-09-12 19:22:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 19:22:28,381 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:22:28,381 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 19:22:28,394 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-09-12 19:22:28,582 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 19:22:28,582 INFO L399 AbstractCegarLoop]: === Iteration 48 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:22:28,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:22:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash 773826106, now seen corresponding path program 1 times [2024-09-12 19:22:28,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:22:28,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674583051] [2024-09-12 19:22:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:22:28,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:22:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:22:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,002 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:22:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,003 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-12 19:22:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:22:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,005 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:22:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,006 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-09-12 19:22:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,007 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-09-12 19:22:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:22:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-09-12 19:22:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-09-12 19:22:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-09-12 19:22:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,013 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-09-12 19:22:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,014 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-09-12 19:22:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-09-12 19:22:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:22:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-09-12 19:22:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:22:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-09-12 19:22:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-09-12 19:22:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-09-12 19:22:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,024 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 19:22:29,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:22:29,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674583051] [2024-09-12 19:22:29,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674583051] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:22:29,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040265017] [2024-09-12 19:22:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:22:29,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:22:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:22:29,026 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 19:22:29,027 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 19:22:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:22:29,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:22:29,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:22:29,814 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 19:22:29,814 INFO L327 TraceCheckSpWp]: Computing backward predicates...