./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.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/ps2-ll_unwindbound1.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 eeab39c4b0b140806b3ddcf9e96fb8e36f66c5baac57da41aaf4e88167e6b080 --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 19:32:21,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:32:21,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:32:21,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:32:21,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:32:21,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:32:21,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:32:21,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:32:21,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:32:21,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:32:21,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:32:21,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:32:21,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:32:21,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:32:21,494 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:32:21,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:32:21,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:32:21,495 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:32:21,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:32:21,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:32:21,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:32:21,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:32:21,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:32:21,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:32:21,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:32:21,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:32:21,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:32:21,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:32:21,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:32:21,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:32:21,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:32:21,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:32:21,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:32:21,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:32:21,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:32:21,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:32:21,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:32:21,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeab39c4b0b140806b3ddcf9e96fb8e36f66c5baac57da41aaf4e88167e6b080 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:32:21,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:32:21,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:32:21,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:32:21,777 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:32:21,777 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:32:21,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2024-09-12 19:32:23,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:32:23,248 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:32:23,249 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound1.c [2024-09-12 19:32:23,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/17740013e/24eabf53f5554e48ac5198b75ddc800d/FLAG48b702afa [2024-09-12 19:32:23,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/17740013e/24eabf53f5554e48ac5198b75ddc800d [2024-09-12 19:32:23,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:32:23,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:32:23,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:32:23,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:32:23,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:32:23,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f55166c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23, skipping insertion in model container [2024-09-12 19:32:23,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:32:23,421 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/ps2-ll_unwindbound1.c[454,467] [2024-09-12 19:32:23,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:32:23,447 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:32:23,456 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/ps2-ll_unwindbound1.c[454,467] [2024-09-12 19:32:23,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:32:23,474 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:32:23,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23 WrapperNode [2024-09-12 19:32:23,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:32:23,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:32:23,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:32:23,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:32:23,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,490 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:32:23,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:32:23,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:32:23,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:32:23,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:32:23,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,511 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:32:23,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,513 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:32:23,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:32:23,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:32:23,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:32:23,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (1/1) ... [2024-09-12 19:32:23,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:32:23,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:23,541 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 19:32:23,543 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 19:32:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:32:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:32:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:32:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:32:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:32:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:32:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:32:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:32:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:32:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:32:23,618 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:32:23,620 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:32:23,793 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-09-12 19:32:23,793 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:32:23,815 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:32:23,815 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:32:23,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:32:23 BoogieIcfgContainer [2024-09-12 19:32:23,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:32:23,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:32:23,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:32:23,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:32:23,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:32:23" (1/3) ... [2024-09-12 19:32:23,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2462112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:32:23, skipping insertion in model container [2024-09-12 19:32:23,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:32:23" (2/3) ... [2024-09-12 19:32:23,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2462112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:32:23, skipping insertion in model container [2024-09-12 19:32:23,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:32:23" (3/3) ... [2024-09-12 19:32:23,820 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound1.c [2024-09-12 19:32:23,831 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:32:23,831 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:32:23,889 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:32:23,895 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;@650f466b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:32:23,895 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:32:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 60 states have internal predecessors, (64), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:32:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:32:23,913 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:23,913 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:23,913 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:23,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 154949117, now seen corresponding path program 1 times [2024-09-12 19:32:23,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:23,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899532826] [2024-09-12 19:32:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:23,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,011 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,018 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 19:32:24,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:24,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899532826] [2024-09-12 19:32:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899532826] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:24,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:32:24,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242683264] [2024-09-12 19:32:24,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:24,023 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:32:24,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:24,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:32:24,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:32:24,040 INFO L87 Difference]: Start difference. First operand has 68 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 60 states have internal predecessors, (64), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:24,083 INFO L93 Difference]: Finished difference Result 134 states and 147 transitions. [2024-09-12 19:32:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:32:24,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 19:32:24,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:24,091 INFO L225 Difference]: With dead ends: 134 [2024-09-12 19:32:24,091 INFO L226 Difference]: Without dead ends: 67 [2024-09-12 19:32:24,094 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 19:32:24,098 INFO L434 NwaCegarLoop]: 60 mSDtfsCounter, 10 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:24,099 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 112 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-09-12 19:32:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2024-09-12 19:32:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 33 states have (on average 1.7575757575757576) internal successors, (58), 56 states have internal predecessors, (58), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2024-09-12 19:32:24,142 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 7 [2024-09-12 19:32:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:24,142 INFO L474 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2024-09-12 19:32:24,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2024-09-12 19:32:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:32:24,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:24,144 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:24,144 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:32:24,145 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:24,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash 154947676, now seen corresponding path program 1 times [2024-09-12 19:32:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:24,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068446456] [2024-09-12 19:32:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,260 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,275 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 19:32:24,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:24,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068446456] [2024-09-12 19:32:24,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068446456] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:24,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:24,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:32:24,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642907223] [2024-09-12 19:32:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:24,276 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:32:24,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:24,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:32:24,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:32:24,277 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:24,397 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2024-09-12 19:32:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:24,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2024-09-12 19:32:24,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:24,399 INFO L225 Difference]: With dead ends: 90 [2024-09-12 19:32:24,400 INFO L226 Difference]: Without dead ends: 66 [2024-09-12 19:32:24,401 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 19:32:24,402 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 12 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:24,403 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 203 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-09-12 19:32:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-09-12 19:32:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 60 states have internal predecessors, (62), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-09-12 19:32:24,416 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 7 [2024-09-12 19:32:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:24,417 INFO L474 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-09-12 19:32:24,418 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-09-12 19:32:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 19:32:24,419 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:24,419 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:24,420 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:32:24,420 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:24,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2008645891, now seen corresponding path program 1 times [2024-09-12 19:32:24,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:24,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271984088] [2024-09-12 19:32:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:24,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84177289] [2024-09-12 19:32:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:24,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:24,441 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 19:32:24,446 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 19:32:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:32:24,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:24,511 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 19:32:24,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:32:24,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:24,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271984088] [2024-09-12 19:32:24,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:24,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84177289] [2024-09-12 19:32:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84177289] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:24,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:32:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235661507] [2024-09-12 19:32:24,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:24,518 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:32:24,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:32:24,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:32:24,519 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:24,602 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2024-09-12 19:32:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:32:24,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 19:32:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:24,604 INFO L225 Difference]: With dead ends: 99 [2024-09-12 19:32:24,605 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:32:24,606 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 19:32:24,606 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:24,608 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:32:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2024-09-12 19:32:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 52 states have (on average 1.6538461538461537) internal successors, (86), 75 states have internal predecessors, (86), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions. [2024-09-12 19:32:24,622 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 11 [2024-09-12 19:32:24,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:24,622 INFO L474 AbstractCegarLoop]: Abstraction has 82 states and 94 transitions. [2024-09-12 19:32:24,622 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:24,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,624 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2024-09-12 19:32:24,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 19:32:24,624 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:24,625 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:24,637 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 19:32:24,828 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:24,829 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:24,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2138480532, now seen corresponding path program 1 times [2024-09-12 19:32:24,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:24,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897842475] [2024-09-12 19:32:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,900 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 19:32:24,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897842475] [2024-09-12 19:32:24,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897842475] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:24,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:24,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:32:24,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120449175] [2024-09-12 19:32:24,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:24,902 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:32:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:24,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:32:24,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:32:24,902 INFO L87 Difference]: Start difference. First operand 82 states and 94 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:25,016 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2024-09-12 19:32:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:32:25,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 19:32:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:25,018 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:32:25,019 INFO L226 Difference]: Without dead ends: 93 [2024-09-12 19:32:25,019 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 19:32:25,021 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 31 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:25,022 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:25,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-09-12 19:32:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 87. [2024-09-12 19:32:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.543859649122807) internal successors, (88), 80 states have internal predecessors, (88), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2024-09-12 19:32:25,041 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 12 [2024-09-12 19:32:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:25,041 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2024-09-12 19:32:25,041 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2024-09-12 19:32:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 19:32:25,042 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:25,042 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:25,042 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:32:25,043 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:25,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash 223683911, now seen corresponding path program 1 times [2024-09-12 19:32:25,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:25,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943292635] [2024-09-12 19:32:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,142 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 19:32:25,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943292635] [2024-09-12 19:32:25,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943292635] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:25,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:25,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:32:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977364549] [2024-09-12 19:32:25,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:25,144 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:32:25,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:25,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:32:25,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:32:25,145 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:25,277 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2024-09-12 19:32:25,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:32:25,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 19:32:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:25,282 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:32:25,282 INFO L226 Difference]: Without dead ends: 93 [2024-09-12 19:32:25,282 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:32:25,283 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:25,283 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 91 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:25,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-09-12 19:32:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2024-09-12 19:32:25,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 81 states have internal predecessors, (86), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:25,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2024-09-12 19:32:25,303 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 15 [2024-09-12 19:32:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:25,303 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2024-09-12 19:32:25,303 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2024-09-12 19:32:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 19:32:25,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:25,305 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:25,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:32:25,306 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:25,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1531819869, now seen corresponding path program 1 times [2024-09-12 19:32:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:25,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156731290] [2024-09-12 19:32:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:25,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702829508] [2024-09-12 19:32:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:25,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:25,326 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 19:32:25,331 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 19:32:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:32:25,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:25,428 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 19:32:25,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:32:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156731290] [2024-09-12 19:32:25,429 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702829508] [2024-09-12 19:32:25,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702829508] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:25,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:25,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:32:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687108175] [2024-09-12 19:32:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:25,430 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:32:25,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:32:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:32:25,431 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:25,511 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2024-09-12 19:32:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:32:25,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 19:32:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:25,512 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:32:25,512 INFO L226 Difference]: Without dead ends: 86 [2024-09-12 19:32:25,512 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:32:25,513 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:25,513 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 146 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:25,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-12 19:32:25,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2024-09-12 19:32:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.509433962264151) internal successors, (80), 76 states have internal predecessors, (80), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2024-09-12 19:32:25,521 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 21 [2024-09-12 19:32:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:25,521 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2024-09-12 19:32:25,521 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 19:32:25,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2024-09-12 19:32:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:32:25,522 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:25,522 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:25,537 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:32:25,722 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:32:25,723 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:25,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash 423053664, now seen corresponding path program 1 times [2024-09-12 19:32:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515155892] [2024-09-12 19:32:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,759 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,762 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 19:32:25,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:25,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515155892] [2024-09-12 19:32:25,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515155892] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:25,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:25,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:32:25,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970673951] [2024-09-12 19:32:25,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:25,763 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:32:25,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:32:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:32:25,764 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:25,797 INFO L93 Difference]: Finished difference Result 86 states and 88 transitions. [2024-09-12 19:32:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:32:25,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-09-12 19:32:25,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:25,798 INFO L225 Difference]: With dead ends: 86 [2024-09-12 19:32:25,798 INFO L226 Difference]: Without dead ends: 84 [2024-09-12 19:32:25,798 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 19:32:25,799 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 9 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:25,799 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 151 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-09-12 19:32:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-09-12 19:32:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.471698113207547) internal successors, (78), 76 states have internal predecessors, (78), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 86 transitions. [2024-09-12 19:32:25,806 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 86 transitions. Word has length 24 [2024-09-12 19:32:25,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:25,806 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 86 transitions. [2024-09-12 19:32:25,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:25,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,807 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2024-09-12 19:32:25,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:32:25,807 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:25,808 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:25,808 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:32:25,808 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:25,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1344873436, now seen corresponding path program 1 times [2024-09-12 19:32:25,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735530121] [2024-09-12 19:32:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:25,883 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 19:32:25,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:25,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735530121] [2024-09-12 19:32:25,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735530121] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:25,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:25,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:32:25,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030344086] [2024-09-12 19:32:25,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:25,884 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:32:25,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:25,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:32:25,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:32:25,884 INFO L87 Difference]: Start difference. First operand 84 states and 86 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:25,982 INFO L93 Difference]: Finished difference Result 87 states and 90 transitions. [2024-09-12 19:32:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:32:25,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-09-12 19:32:25,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:25,984 INFO L225 Difference]: With dead ends: 87 [2024-09-12 19:32:25,984 INFO L226 Difference]: Without dead ends: 86 [2024-09-12 19:32:25,984 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 19:32:25,985 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:25,985 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-12 19:32:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2024-09-12 19:32:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.462962962962963) internal successors, (79), 77 states have internal predecessors, (79), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2024-09-12 19:32:25,997 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 28 [2024-09-12 19:32:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:25,998 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2024-09-12 19:32:25,998 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:25,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:25,998 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2024-09-12 19:32:25,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:32:25,998 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:25,999 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:25,999 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:32:25,999 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:25,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1258596527, now seen corresponding path program 1 times [2024-09-12 19:32:26,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:26,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305065144] [2024-09-12 19:32:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,065 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 19:32:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305065144] [2024-09-12 19:32:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305065144] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:26,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:26,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:32:26,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883893947] [2024-09-12 19:32:26,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:26,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:32:26,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:26,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:32:26,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:32:26,067 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:26,142 INFO L93 Difference]: Finished difference Result 87 states and 89 transitions. [2024-09-12 19:32:26,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:32:26,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-09-12 19:32:26,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:26,144 INFO L225 Difference]: With dead ends: 87 [2024-09-12 19:32:26,144 INFO L226 Difference]: Without dead ends: 86 [2024-09-12 19:32:26,144 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:32:26,145 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 8 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:26,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 101 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-12 19:32:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-09-12 19:32:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 78 states have internal predecessors, (80), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 88 transitions. [2024-09-12 19:32:26,154 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 88 transitions. Word has length 29 [2024-09-12 19:32:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:26,154 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 88 transitions. [2024-09-12 19:32:26,154 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2024-09-12 19:32:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-09-12 19:32:26,155 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:26,155 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:26,156 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:32:26,156 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:26,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1669513743, now seen corresponding path program 1 times [2024-09-12 19:32:26,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:26,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368275451] [2024-09-12 19:32:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,251 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,259 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:26,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:26,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368275451] [2024-09-12 19:32:26,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368275451] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:26,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159873223] [2024-09-12 19:32:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:26,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:26,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:26,267 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 19:32:26,271 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 19:32:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:32:26,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:26,370 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 19:32:26,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:32:26,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159873223] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:26,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:32:26,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-09-12 19:32:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800536278] [2024-09-12 19:32:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:26,371 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:32:26,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:32:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:32:26,371 INFO L87 Difference]: Start difference. First operand 86 states and 88 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:26,421 INFO L93 Difference]: Finished difference Result 113 states and 116 transitions. [2024-09-12 19:32:26,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:26,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-09-12 19:32:26,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:26,422 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:32:26,422 INFO L226 Difference]: Without dead ends: 54 [2024-09-12 19:32:26,423 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:32:26,423 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 27 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:26,423 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 87 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-09-12 19:32:26,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-09-12 19:32:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.205128205128205) internal successors, (47), 47 states have internal predecessors, (47), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2024-09-12 19:32:26,436 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 31 [2024-09-12 19:32:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:26,436 INFO L474 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2024-09-12 19:32:26,436 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,436 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2024-09-12 19:32:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-12 19:32:26,437 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:26,437 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:26,463 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:32:26,637 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:32:26,638 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:26,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,639 INFO L85 PathProgramCache]: Analyzing trace with hash -215318437, now seen corresponding path program 1 times [2024-09-12 19:32:26,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:26,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525425801] [2024-09-12 19:32:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:26,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,719 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:26,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525425801] [2024-09-12 19:32:26,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525425801] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:26,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009291600] [2024-09-12 19:32:26,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:26,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:26,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:26,724 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 19:32:26,725 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 19:32:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:26,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:32:26,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:26,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:26,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009291600] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:26,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:32:26,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-09-12 19:32:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931570148] [2024-09-12 19:32:26,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:26,882 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:32:26,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:26,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:32:26,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:32:26,883 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:26,963 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2024-09-12 19:32:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:32:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2024-09-12 19:32:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:26,964 INFO L225 Difference]: With dead ends: 54 [2024-09-12 19:32:26,964 INFO L226 Difference]: Without dead ends: 53 [2024-09-12 19:32:26,964 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:32:26,965 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 62 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:26,965 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 184 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:26,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-09-12 19:32:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-09-12 19:32:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 46 states have internal predecessors, (46), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2024-09-12 19:32:26,971 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 32 [2024-09-12 19:32:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:26,972 INFO L474 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2024-09-12 19:32:26,972 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 6 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2024-09-12 19:32:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:32:26,973 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:26,973 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:26,986 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:32:27,173 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:27,174 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:27,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:27,174 INFO L85 PathProgramCache]: Analyzing trace with hash 2129631542, now seen corresponding path program 1 times [2024-09-12 19:32:27,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:27,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967336953] [2024-09-12 19:32:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:27,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632753349] [2024-09-12 19:32:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:27,183 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 19:32:27,184 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 19:32:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:27,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:32:27,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:27,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:27,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:27,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967336953] [2024-09-12 19:32:27,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:27,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632753349] [2024-09-12 19:32:27,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632753349] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:27,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:27,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:32:27,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763479061] [2024-09-12 19:32:27,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:27,337 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:32:27,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:32:27,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:32:27,338 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:27,375 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2024-09-12 19:32:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:32:27,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2024-09-12 19:32:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:27,376 INFO L225 Difference]: With dead ends: 53 [2024-09-12 19:32:27,376 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 19:32:27,377 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:32:27,377 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:27,377 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:27,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 19:32:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-09-12 19:32:27,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 45 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2024-09-12 19:32:27,385 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 35 [2024-09-12 19:32:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:27,385 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2024-09-12 19:32:27,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-12 19:32:27,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2024-09-12 19:32:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-09-12 19:32:27,386 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:27,386 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:27,399 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 19:32:27,587 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:32:27,587 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:27,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:27,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1594068454, now seen corresponding path program 1 times [2024-09-12 19:32:27,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:27,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788503214] [2024-09-12 19:32:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:27,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:27,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:27,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:27,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788503214] [2024-09-12 19:32:27,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788503214] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:27,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014727003] [2024-09-12 19:32:27,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:27,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:27,642 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 19:32:27,643 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 19:32:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:27,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:32:27,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:27,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:27,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014727003] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:27,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:32:27,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 19:32:27,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235036260] [2024-09-12 19:32:27,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:27,786 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:32:27,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:27,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:32:27,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:32:27,787 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:32:27,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:27,881 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2024-09-12 19:32:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2024-09-12 19:32:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:27,881 INFO L225 Difference]: With dead ends: 52 [2024-09-12 19:32:27,882 INFO L226 Difference]: Without dead ends: 51 [2024-09-12 19:32:27,882 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:32:27,882 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:27,882 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 80 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:27,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-12 19:32:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-09-12 19:32:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 44 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2024-09-12 19:32:27,887 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 36 [2024-09-12 19:32:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:27,887 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2024-09-12 19:32:27,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:32:27,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2024-09-12 19:32:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:32:27,888 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:27,888 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:27,902 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 19:32:28,091 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:32:28,092 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:28,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,092 INFO L85 PathProgramCache]: Analyzing trace with hash -2123485384, now seen corresponding path program 1 times [2024-09-12 19:32:28,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447867684] [2024-09-12 19:32:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,144 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:28,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:28,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447867684] [2024-09-12 19:32:28,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447867684] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:28,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463150057] [2024-09-12 19:32:28,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:28,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:28,152 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 19:32:28,153 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 19:32:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:32:28,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:28,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:28,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:28,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463150057] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:28,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:32:28,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-12 19:32:28,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570683100] [2024-09-12 19:32:28,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:28,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:32:28,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:32:28,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:32:28,309 INFO L87 Difference]: Start difference. First operand 51 states and 50 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:32:28,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:28,383 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2024-09-12 19:32:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:28,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2024-09-12 19:32:28,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:28,384 INFO L225 Difference]: With dead ends: 51 [2024-09-12 19:32:28,384 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 19:32:28,384 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:32:28,385 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:28,385 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 58 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 19:32:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-09-12 19:32:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 41 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 47 transitions. [2024-09-12 19:32:28,390 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 47 transitions. Word has length 37 [2024-09-12 19:32:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:28,390 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 47 transitions. [2024-09-12 19:32:28,390 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-12 19:32:28,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 47 transitions. [2024-09-12 19:32:28,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:32:28,391 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:28,391 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:28,403 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:32:28,591 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 19:32:28,592 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:28,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,592 INFO L85 PathProgramCache]: Analyzing trace with hash -559985350, now seen corresponding path program 1 times [2024-09-12 19:32:28,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287546849] [2024-09-12 19:32:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-12 19:32:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:28,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:28,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287546849] [2024-09-12 19:32:28,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287546849] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:28,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853985082] [2024-09-12 19:32:28,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:28,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:28,649 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 19:32:28,650 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 19:32:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:32:28,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:28,790 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:32:28,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853985082] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:28,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:32:28,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-09-12 19:32:28,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664928381] [2024-09-12 19:32:28,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:28,791 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:32:28,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:28,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:32:28,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:32:28,791 INFO L87 Difference]: Start difference. First operand 48 states and 47 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:28,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:28,826 INFO L93 Difference]: Finished difference Result 48 states and 47 transitions. [2024-09-12 19:32:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:32:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-09-12 19:32:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:28,827 INFO L225 Difference]: With dead ends: 48 [2024-09-12 19:32:28,827 INFO L226 Difference]: Without dead ends: 46 [2024-09-12 19:32:28,827 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:32:28,827 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:28,827 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 51 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:28,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-09-12 19:32:28,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-09-12 19:32:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.0) internal successors, (39), 39 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:28,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2024-09-12 19:32:28,832 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 39 [2024-09-12 19:32:28,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:28,832 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2024-09-12 19:32:28,832 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:28,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2024-09-12 19:32:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:32:28,833 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:28,833 INFO L216 NwaCegarLoop]: trace histogram [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 19:32:28,846 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:32:29,037 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 19:32:29,038 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:32:29,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 399932014, now seen corresponding path program 1 times [2024-09-12 19:32:29,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:29,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803627504] [2024-09-12 19:32:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:29,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:29,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473245440] [2024-09-12 19:32:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:29,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:29,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:29,046 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 19:32:29,047 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 19:32:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:29,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:32:29,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 19:32:29,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:32:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803627504] [2024-09-12 19:32:29,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473245440] [2024-09-12 19:32:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473245440] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:29,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:32:29,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:32:29,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920784222] [2024-09-12 19:32:29,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:29,236 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:32:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:32:29,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:32:29,237 INFO L87 Difference]: Start difference. First operand 46 states and 45 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:29,292 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2024-09-12 19:32:29,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:29,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-09-12 19:32:29,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:29,292 INFO L225 Difference]: With dead ends: 46 [2024-09-12 19:32:29,292 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:32:29,293 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:32:29,293 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:29,293 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 58 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:29,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:32:29,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:32:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:32:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:32:29,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2024-09-12 19:32:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:29,294 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:32:29,294 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:32:29,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:32:29,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:32:29,296 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-09-12 19:32:29,297 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-09-12 19:32:29,298 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-09-12 19:32:29,299 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2024-09-12 19:32:29,311 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 19:32:29,503 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 19:32:29,506 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:29,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:32:30,150 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:32:30,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:32:30 BoogieIcfgContainer [2024-09-12 19:32:30,161 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:32:30,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:32:30,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:32:30,161 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:32:30,161 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:32:23" (3/4) ... [2024-09-12 19:32:30,163 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:32:30,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:32:30,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:32:30,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:32:30,168 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-12 19:32:30,168 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:32:30,168 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:32:30,168 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:32:30,193 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == 0) && (counter == 0)) && (c == 0)) && (y == 0)) || (((y == 1) && (x == 1)) && (counter == 1))) && (\old(counter) == 0)) [2024-09-12 19:32:30,233 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:32:30,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:32:30,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:32:30,236 INFO L158 Benchmark]: Toolchain (without parser) took 6963.53ms. Allocated memory was 86.0MB in the beginning and 146.8MB in the end (delta: 60.8MB). Free memory was 47.1MB in the beginning and 68.7MB in the end (delta: -21.6MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,236 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 31.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:32:30,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.95ms. Allocated memory is still 86.0MB. Free memory was 46.9MB in the beginning and 61.1MB in the end (delta: -14.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.51ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 60.2MB in the end (delta: 852.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:32:30,236 INFO L158 Benchmark]: Boogie Preprocessor took 26.88ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,237 INFO L158 Benchmark]: RCFGBuilder took 297.75ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 43.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,237 INFO L158 Benchmark]: TraceAbstraction took 6344.08ms. Allocated memory was 86.0MB in the beginning and 146.8MB in the end (delta: 60.8MB). Free memory was 42.5MB in the beginning and 73.9MB in the end (delta: -31.4MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,237 INFO L158 Benchmark]: Witness Printer took 74.49ms. Allocated memory is still 146.8MB. Free memory was 73.9MB in the beginning and 68.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 19:32:30,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 31.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.95ms. Allocated memory is still 86.0MB. Free memory was 46.9MB in the beginning and 61.1MB in the end (delta: -14.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.51ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 60.2MB in the end (delta: 852.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.88ms. Allocated memory is still 86.0MB. Free memory was 60.2MB in the beginning and 58.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.75ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 43.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6344.08ms. Allocated memory was 86.0MB in the beginning and 146.8MB in the end (delta: 60.8MB). Free memory was 42.5MB in the beginning and 73.9MB in the end (delta: -31.4MB). Peak memory consumption was 64.1MB. Max. memory is 16.1GB. * Witness Printer took 74.49ms. Allocated memory is still 146.8MB. Free memory was 73.9MB in the beginning and 68.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 358 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 354 mSDsluCounter, 1672 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1084 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1215 IncrementalHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 588 mSDtfsCounter, 1215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 570 GetRequests, 466 SyntacticMatches, 3 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=5, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 32 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 696 NumberOfCodeBlocks, 696 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 743 ConstructedInterpolants, 0 QuantifiedInterpolants, 3299 SizeOfPredicates, 12 NumberOfNonLiveVariables, 744 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 14/65 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((x == 0) && (counter == 0)) && (c == 0)) && (y == 0)) || (((y == 1) && (x == 1)) && (counter == 1))) && (\old(counter) == 0)) - ProcedureContractResult [Line: 18]: Procedure Contract for main Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:32:30,262 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE