./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fecc0272e3d3edda13fe6ca0a651d95cf8d16c414f426c1f8f27e509220a775 --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 19:05:41,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:05:41,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:05:41,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:05:41,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:05:41,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:05:41,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:05:41,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:05:41,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:05:41,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:05:41,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:05:41,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:05:41,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:05:41,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:05:41,320 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:05:41,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:05:41,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:05:41,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:05:41,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:05:41,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:05:41,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:05:41,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:05:41,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:05:41,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:05:41,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:05:41,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:05:41,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:05:41,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:05:41,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:05:41,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:05:41,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:05:41,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:05:41,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:05:41,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:05:41,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:05:41,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:05:41,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:05:41,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fecc0272e3d3edda13fe6ca0a651d95cf8d16c414f426c1f8f27e509220a775 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:05:41,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:05:41,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:05:41,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:05:41,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:05:41,677 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:05:41,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c [2024-09-12 19:05:43,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:05:43,435 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:05:43,436 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound5.c [2024-09-12 19:05:43,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c5731349e/ac308c2e88fa4b6aa82e3b9e7a5f0adb/FLAG096b9f9b5 [2024-09-12 19:05:43,784 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c5731349e/ac308c2e88fa4b6aa82e3b9e7a5f0adb [2024-09-12 19:05:43,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:05:43,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:05:43,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:05:43,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:05:43,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:05:43,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:05:43" (1/1) ... [2024-09-12 19:05:43,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605f951a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:43, skipping insertion in model container [2024-09-12 19:05:43,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:05:43" (1/1) ... [2024-09-12 19:05:43,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:05:43,941 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/geo1-ll_valuebound5.c[546,559] [2024-09-12 19:05:43,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:05:43,965 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:05:43,975 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/geo1-ll_valuebound5.c[546,559] [2024-09-12 19:05:43,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:05:44,005 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:05:44,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44 WrapperNode [2024-09-12 19:05:44,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:05:44,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:05:44,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:05:44,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:05:44,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,028 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:05:44,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:05:44,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:05:44,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:05:44,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:05:44,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,078 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 19:05:44,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:05:44,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:05:44,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:05:44,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:05:44,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (1/1) ... [2024-09-12 19:05:44,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:05:44,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:44,190 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 19:05:44,193 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 19:05:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:05:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:05:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:05:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:05:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:05:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:05:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:05:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:05:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:05:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:05:44,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:05:44,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:05:44,300 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:05:44,302 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:05:44,682 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-09-12 19:05:44,682 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:05:44,717 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:05:44,717 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:05:44,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:44 BoogieIcfgContainer [2024-09-12 19:05:44,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:05:44,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:05:44,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:05:44,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:05:44,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:05:43" (1/3) ... [2024-09-12 19:05:44,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7dc797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:05:44, skipping insertion in model container [2024-09-12 19:05:44,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:05:44" (2/3) ... [2024-09-12 19:05:44,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7dc797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:05:44, skipping insertion in model container [2024-09-12 19:05:44,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:44" (3/3) ... [2024-09-12 19:05:44,727 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound5.c [2024-09-12 19:05:44,747 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:05:44,747 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-09-12 19:05:44,808 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:05:44,814 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;@1f063986, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:05:44,815 INFO L337 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-09-12 19:05:44,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 64 states have internal predecessors, (69), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:05:44,826 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:44,827 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:44,827 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:44,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:44,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1567640167, now seen corresponding path program 1 times [2024-09-12 19:05:44,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:44,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924634813] [2024-09-12 19:05:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:44,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:44,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:44,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,004 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,024 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:45,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:45,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924634813] [2024-09-12 19:05:45,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924634813] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:45,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:45,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:45,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86168590] [2024-09-12 19:05:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:45,052 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:05:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:05:45,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:05:45,079 INFO L87 Difference]: Start difference. First operand has 77 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 64 states have internal predecessors, (69), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:45,118 INFO L93 Difference]: Finished difference Result 148 states and 169 transitions. [2024-09-12 19:05:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:05:45,122 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-09-12 19:05:45,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:45,131 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:05:45,131 INFO L226 Difference]: Without dead ends: 73 [2024-09-12 19:05:45,134 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:05:45,140 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:45,142 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-09-12 19:05:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-09-12 19:05:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 62 states have internal predecessors, (63), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:05:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2024-09-12 19:05:45,184 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 29 [2024-09-12 19:05:45,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:45,184 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2024-09-12 19:05:45,185 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:45,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:45,185 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2024-09-12 19:05:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-12 19:05:45,187 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:45,187 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:45,187 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:05:45,188 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:45,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1523748130, now seen corresponding path program 1 times [2024-09-12 19:05:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:45,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148147407] [2024-09-12 19:05:45,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204315792] [2024-09-12 19:05:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:45,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:45,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:45,229 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 19:05:45,231 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 19:05:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:45,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:45,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:45,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148147407] [2024-09-12 19:05:45,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204315792] [2024-09-12 19:05:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204315792] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:45,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:45,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557248581] [2024-09-12 19:05:45,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:45,404 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:45,405 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:45,601 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2024-09-12 19:05:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2024-09-12 19:05:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:45,603 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:45,603 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:45,604 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:45,605 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:45,606 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 89 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2024-09-12 19:05:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.690909090909091) internal successors, (93), 80 states have internal predecessors, (93), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2024-09-12 19:05:45,623 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 29 [2024-09-12 19:05:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:45,624 INFO L474 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2024-09-12 19:05:45,625 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:45,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2024-09-12 19:05:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 19:05:45,626 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:45,626 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:45,644 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 19:05:45,830 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:45,831 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:45,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:45,832 INFO L85 PathProgramCache]: Analyzing trace with hash -8448164, now seen corresponding path program 1 times [2024-09-12 19:05:45,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:45,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230415360] [2024-09-12 19:05:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:45,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298753283] [2024-09-12 19:05:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:45,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:45,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:45,868 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 19:05:45,870 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 19:05:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:45,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:45,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:45,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:45,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230415360] [2024-09-12 19:05:45,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298753283] [2024-09-12 19:05:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298753283] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:45,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:45,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819191130] [2024-09-12 19:05:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:45,978 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:45,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:45,979 INFO L87 Difference]: Start difference. First operand 92 states and 109 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:46,136 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2024-09-12 19:05:46,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2024-09-12 19:05:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:46,138 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:46,138 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:46,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:46,140 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 63 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:46,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 72 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:46,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:46,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.5789473684210527) internal successors, (90), 81 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2024-09-12 19:05:46,159 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 30 [2024-09-12 19:05:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:46,159 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2024-09-12 19:05:46,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:05:46,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2024-09-12 19:05:46,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 19:05:46,161 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:46,161 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:46,179 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 19:05:46,362 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:46,363 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:46,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:46,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1723880358, now seen corresponding path program 1 times [2024-09-12 19:05:46,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:46,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055289572] [2024-09-12 19:05:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:46,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387149327] [2024-09-12 19:05:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:46,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:46,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:46,388 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 19:05:46,389 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 19:05:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:46,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:46,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:46,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:46,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:46,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055289572] [2024-09-12 19:05:46,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387149327] [2024-09-12 19:05:46,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387149327] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:46,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:46,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:46,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499538188] [2024-09-12 19:05:46,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:46,473 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:46,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:05:46,474 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:46,645 INFO L93 Difference]: Finished difference Result 97 states and 106 transitions. [2024-09-12 19:05:46,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:46,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2024-09-12 19:05:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:46,648 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:46,648 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:46,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:05:46,650 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:46,653 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 86 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:46,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.543859649122807) internal successors, (88), 81 states have internal predecessors, (88), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2024-09-12 19:05:46,686 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 33 [2024-09-12 19:05:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:46,686 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 104 transitions. [2024-09-12 19:05:46,687 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:46,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions. [2024-09-12 19:05:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-12 19:05:46,688 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:46,688 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:46,705 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 19:05:46,889 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:46,889 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:46,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:46,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1900683616, now seen corresponding path program 1 times [2024-09-12 19:05:46,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:46,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765616637] [2024-09-12 19:05:46,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,172 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,185 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:47,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:47,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765616637] [2024-09-12 19:05:47,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765616637] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:47,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326079782] [2024-09-12 19:05:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:47,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:47,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:47,215 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 19:05:47,218 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 19:05:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:05:47,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:47,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:47,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326079782] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:47,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:47,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-09-12 19:05:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956567204] [2024-09-12 19:05:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:47,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:47,326 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:47,497 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2024-09-12 19:05:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:47,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2024-09-12 19:05:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:47,498 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:47,499 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:47,499 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:47,500 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 15 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:47,500 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-09-12 19:05:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 81 states have internal predecessors, (86), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-09-12 19:05:47,514 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 34 [2024-09-12 19:05:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:47,515 INFO L474 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-09-12 19:05:47,515 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:47,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-09-12 19:05:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:05:47,517 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:47,517 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:47,533 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:47,717 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:47,718 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 19:05:47,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:47,718 INFO L85 PathProgramCache]: Analyzing trace with hash -722097138, now seen corresponding path program 1 times [2024-09-12 19:05:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:47,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101205868] [2024-09-12 19:05:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825479224] [2024-09-12 19:05:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:47,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:47,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:47,735 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 19:05:47,736 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 19:05:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:47,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:05:47,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:47,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:47,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101205868] [2024-09-12 19:05:47,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:47,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825479224] [2024-09-12 19:05:47,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825479224] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:47,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:47,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:05:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924893884] [2024-09-12 19:05:47,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:47,873 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:47,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:47,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:47,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:47,875 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:48,114 INFO L93 Difference]: Finished difference Result 101 states and 107 transitions. [2024-09-12 19:05:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:48,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-09-12 19:05:48,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:48,115 INFO L225 Difference]: With dead ends: 101 [2024-09-12 19:05:48,115 INFO L226 Difference]: Without dead ends: 99 [2024-09-12 19:05:48,116 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 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 19:05:48,118 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:48,118 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 191 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:48,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-09-12 19:05:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-09-12 19:05:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 84 states have internal predecessors, (89), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-09-12 19:05:48,142 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 40 [2024-09-12 19:05:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:48,142 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-09-12 19:05:48,143 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 19:05:48,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-09-12 19:05:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:05:48,144 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:48,145 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:48,162 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 19:05:48,346 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:05:48,346 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:48,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1500224217, now seen corresponding path program 1 times [2024-09-12 19:05:48,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:48,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492888066] [2024-09-12 19:05:48,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:48,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:48,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492888066] [2024-09-12 19:05:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492888066] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:48,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103861969] [2024-09-12 19:05:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:48,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:48,483 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 19:05:48,484 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 19:05:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:48,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:05:48,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:48,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103861969] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:48,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-12 19:05:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367451065] [2024-09-12 19:05:48,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:48,673 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:48,674 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 19:05:48,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:48,845 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-09-12 19:05:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:48,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 43 [2024-09-12 19:05:48,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:48,848 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:48,848 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:48,848 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:48,853 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:48,853 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 192 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:48,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.45) internal successors, (87), 83 states have internal predecessors, (87), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:48,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2024-09-12 19:05:48,875 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 43 [2024-09-12 19:05:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:48,876 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2024-09-12 19:05:48,876 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-09-12 19:05:48,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:48,877 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2024-09-12 19:05:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:05:48,878 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:48,878 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:48,894 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:49,081 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:49,082 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:49,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1500224260, now seen corresponding path program 1 times [2024-09-12 19:05:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121390442] [2024-09-12 19:05:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,133 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:49,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121390442] [2024-09-12 19:05:49,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121390442] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:49,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:49,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:05:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499952594] [2024-09-12 19:05:49,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:49,145 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:05:49,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:05:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:05:49,146 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:49,173 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2024-09-12 19:05:49,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:05:49,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-09-12 19:05:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:49,176 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:05:49,176 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:49,176 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 19:05:49,177 INFO L434 NwaCegarLoop]: 70 mSDtfsCounter, 1 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:49,177 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 136 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:49,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:49,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:49,197 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 43 [2024-09-12 19:05:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:49,197 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:49,198 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:05:49,199 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:49,199 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:49,199 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:05:49,200 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:49,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,200 INFO L85 PathProgramCache]: Analyzing trace with hash 842067997, now seen corresponding path program 1 times [2024-09-12 19:05:49,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:49,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109681058] [2024-09-12 19:05:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:49,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,287 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,300 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:49,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:49,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109681058] [2024-09-12 19:05:49,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109681058] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:49,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:49,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:05:49,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038146735] [2024-09-12 19:05:49,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:49,313 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:49,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:49,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:49,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:49,314 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:49,563 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2024-09-12 19:05:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2024-09-12 19:05:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:49,565 INFO L225 Difference]: With dead ends: 125 [2024-09-12 19:05:49,565 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:05:49,565 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:49,566 INFO L434 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:49,567 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 93 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:05:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2024-09-12 19:05:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 84 states have internal predecessors, (86), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:49,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2024-09-12 19:05:49,591 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 47 [2024-09-12 19:05:49,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:49,591 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2024-09-12 19:05:49,591 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2024-09-12 19:05:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:05:49,592 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:49,592 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:49,593 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:05:49,593 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:49,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 334304242, now seen corresponding path program 1 times [2024-09-12 19:05:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:49,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410306235] [2024-09-12 19:05:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,650 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,651 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,653 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:49,656 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:49,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410306235] [2024-09-12 19:05:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410306235] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:49,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:49,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:05:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724201274] [2024-09-12 19:05:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:49,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:05:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:05:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:49,659 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:49,931 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-09-12 19:05:49,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:49,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-09-12 19:05:49,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:49,932 INFO L225 Difference]: With dead ends: 99 [2024-09-12 19:05:49,932 INFO L226 Difference]: Without dead ends: 98 [2024-09-12 19:05:49,933 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:49,933 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 15 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:49,934 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 125 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-09-12 19:05:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-09-12 19:05:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 62 states have (on average 1.403225806451613) internal successors, (87), 85 states have internal predecessors, (87), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2024-09-12 19:05:49,948 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 48 [2024-09-12 19:05:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:49,949 INFO L474 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2024-09-12 19:05:49,949 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:49,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2024-09-12 19:05:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:05:49,951 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:49,951 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:49,952 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:05:49,952 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:49,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:49,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1773497023, now seen corresponding path program 1 times [2024-09-12 19:05:49,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:49,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596233238] [2024-09-12 19:05:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,040 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,043 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,049 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,052 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:50,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:50,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596233238] [2024-09-12 19:05:50,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596233238] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:50,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:50,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:50,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626747929] [2024-09-12 19:05:50,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:50,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:50,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:50,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:50,056 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:50,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:50,456 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2024-09-12 19:05:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:50,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-09-12 19:05:50,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:50,458 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:05:50,458 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:50,458 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:50,459 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 15 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:50,459 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 93 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:05:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:50,487 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 49 [2024-09-12 19:05:50,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:50,487 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:50,487 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:50,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:50,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:05:50,489 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:50,489 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:50,489 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 19:05:50,491 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:50,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash 719363978, now seen corresponding path program 1 times [2024-09-12 19:05:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142472785] [2024-09-12 19:05:50,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:50,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:50,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630294344] [2024-09-12 19:05:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:50,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:50,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:50,506 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 19:05:50,508 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 19:05:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:50,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:05:50,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:50,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:50,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142472785] [2024-09-12 19:05:50,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:50,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630294344] [2024-09-12 19:05:50,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630294344] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:50,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:50,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:05:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037094068] [2024-09-12 19:05:50,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:50,829 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:50,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:50,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:50,831 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:50,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:50,977 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2024-09-12 19:05:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:50,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 49 [2024-09-12 19:05:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:50,986 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:05:50,986 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:05:50,987 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:50,988 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:50,988 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 135 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:50,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:05:51,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-09-12 19:05:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 82 states have internal predecessors, (84), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2024-09-12 19:05:51,006 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 49 [2024-09-12 19:05:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:51,007 INFO L474 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2024-09-12 19:05:51,007 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:51,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2024-09-12 19:05:51,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:05:51,008 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:51,008 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:51,027 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:05:51,209 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:51,210 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:51,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash -856167020, now seen corresponding path program 1 times [2024-09-12 19:05:51,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:51,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74058707] [2024-09-12 19:05:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:51,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74058707] [2024-09-12 19:05:51,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74058707] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:51,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:51,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:51,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641147113] [2024-09-12 19:05:51,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:51,357 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:51,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:51,358 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:51,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:51,754 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-09-12 19:05:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:51,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2024-09-12 19:05:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:51,756 INFO L225 Difference]: With dead ends: 95 [2024-09-12 19:05:51,756 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:05:51,756 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:51,757 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:51,757 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 94 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:05:51,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:05:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-09-12 19:05:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 81 states have internal predecessors, (83), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2024-09-12 19:05:51,773 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 50 [2024-09-12 19:05:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:51,774 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2024-09-12 19:05:51,774 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:51,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2024-09-12 19:05:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-09-12 19:05:51,775 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:51,775 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:51,775 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:05:51,775 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:51,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash 825446934, now seen corresponding path program 1 times [2024-09-12 19:05:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:51,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368530467] [2024-09-12 19:05:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:51,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685965732] [2024-09-12 19:05:51,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:51,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:51,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:51,795 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 19:05:51,799 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 19:05:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:51,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:05:51,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:51,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:52,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:52,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368530467] [2024-09-12 19:05:52,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:52,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685965732] [2024-09-12 19:05:52,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685965732] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:52,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:52,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:05:52,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000784179] [2024-09-12 19:05:52,391 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:52,391 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:52,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:52,392 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:52,545 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2024-09-12 19:05:52,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:52,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 50 [2024-09-12 19:05:52,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:52,547 INFO L225 Difference]: With dead ends: 97 [2024-09-12 19:05:52,547 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:05:52,547 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:52,548 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 33 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:52,548 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 137 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:05:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 19:05:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.328125) internal successors, (85), 83 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2024-09-12 19:05:52,577 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 50 [2024-09-12 19:05:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:52,578 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2024-09-12 19:05:52,578 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:52,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2024-09-12 19:05:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:05:52,579 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:52,579 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:52,593 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 19:05:52,780 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:52,780 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:52,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1314444328, now seen corresponding path program 1 times [2024-09-12 19:05:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965454754] [2024-09-12 19:05:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:52,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575148931] [2024-09-12 19:05:52,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:52,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:52,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:52,794 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 19:05:52,799 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 19:05:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:52,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:05:52,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:53,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:53,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:53,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965454754] [2024-09-12 19:05:53,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:53,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575148931] [2024-09-12 19:05:53,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575148931] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:53,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:53,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:05:53,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051530745] [2024-09-12 19:05:53,165 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:53,165 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:53,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:53,166 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:53,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:53,346 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2024-09-12 19:05:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:05:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 52 [2024-09-12 19:05:53,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:53,347 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:05:53,347 INFO L226 Difference]: Without dead ends: 91 [2024-09-12 19:05:53,348 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:53,348 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:53,348 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 160 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-09-12 19:05:53,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-09-12 19:05:53,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.25) internal successors, (80), 78 states have internal predecessors, (80), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 96 transitions. [2024-09-12 19:05:53,369 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 96 transitions. Word has length 52 [2024-09-12 19:05:53,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:53,369 INFO L474 AbstractCegarLoop]: Abstraction has 91 states and 96 transitions. [2024-09-12 19:05:53,369 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:53,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:53,370 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 96 transitions. [2024-09-12 19:05:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-09-12 19:05:53,370 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:53,371 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:53,387 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:53,574 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:05:53,575 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 19:05:53,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:53,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1918744834, now seen corresponding path program 1 times [2024-09-12 19:05:53,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:53,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940092244] [2024-09-12 19:05:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:53,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,730 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,731 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,739 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:53,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:53,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940092244] [2024-09-12 19:05:53,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940092244] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:53,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992257911] [2024-09-12 19:05:53,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:53,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:53,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:53,765 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:05:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:53,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:05:53,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:53,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:53,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992257911] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:53,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:53,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-09-12 19:05:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649516548] [2024-09-12 19:05:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:53,894 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:05:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:53,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:05:53,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:53,894 INFO L87 Difference]: Start difference. First operand 91 states and 96 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:54,129 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2024-09-12 19:05:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 54 [2024-09-12 19:05:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:54,130 INFO L225 Difference]: With dead ends: 100 [2024-09-12 19:05:54,130 INFO L226 Difference]: Without dead ends: 85 [2024-09-12 19:05:54,131 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:05:54,131 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:54,131 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 179 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-09-12 19:05:54,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-09-12 19:05:54,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 72 states have internal predecessors, (73), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:05:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2024-09-12 19:05:54,146 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 54 [2024-09-12 19:05:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:54,146 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2024-09-12 19:05:54,147 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:54,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:54,147 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2024-09-12 19:05:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:05:54,147 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:54,147 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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 19:05:54,164 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:54,351 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:05:54,352 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:54,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2093068442, now seen corresponding path program 1 times [2024-09-12 19:05:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:54,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606370414] [2024-09-12 19:05:54,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:54,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143456173] [2024-09-12 19:05:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:54,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:54,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:54,363 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:54,365 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 19:05:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:54,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:05:54,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:54,576 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:05:54,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:55,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:55,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606370414] [2024-09-12 19:05:55,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:55,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143456173] [2024-09-12 19:05:55,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143456173] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:55,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:55,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:05:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721930758] [2024-09-12 19:05:55,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:55,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:55,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:55,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:55,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:55,099 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:55,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:55,263 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2024-09-12 19:05:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:05:55,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2024-09-12 19:05:55,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:55,265 INFO L225 Difference]: With dead ends: 113 [2024-09-12 19:05:55,265 INFO L226 Difference]: Without dead ends: 108 [2024-09-12 19:05:55,265 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:05:55,266 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 63 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:55,266 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 144 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:05:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-09-12 19:05:55,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2024-09-12 19:05:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 92 states have internal predecessors, (99), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2024-09-12 19:05:55,284 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 53 [2024-09-12 19:05:55,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:55,284 INFO L474 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2024-09-12 19:05:55,284 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:05:55,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:55,285 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2024-09-12 19:05:55,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:05:55,285 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:55,285 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:55,302 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:55,486 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:05:55,486 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:55,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash -266688676, now seen corresponding path program 1 times [2024-09-12 19:05:55,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:55,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246870774] [2024-09-12 19:05:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:55,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:55,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720439636] [2024-09-12 19:05:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:55,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:55,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:55,498 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:55,500 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 19:05:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:55,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:05:55,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:55,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:56,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:56,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246870774] [2024-09-12 19:05:56,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:56,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720439636] [2024-09-12 19:05:56,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720439636] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:56,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:05:56,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:05:56,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557963270] [2024-09-12 19:05:56,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:56,036 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:56,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:56,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:05:56,037 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:57,014 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2024-09-12 19:05:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:05:57,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2024-09-12 19:05:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:57,015 INFO L225 Difference]: With dead ends: 119 [2024-09-12 19:05:57,015 INFO L226 Difference]: Without dead ends: 116 [2024-09-12 19:05:57,016 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:05:57,016 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:57,016 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 178 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:05:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-09-12 19:05:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-09-12 19:05:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 86 states have (on average 1.244186046511628) internal successors, (107), 100 states have internal predecessors, (107), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2024-09-12 19:05:57,044 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 56 [2024-09-12 19:05:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:57,045 INFO L474 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2024-09-12 19:05:57,045 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:57,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:57,045 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2024-09-12 19:05:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:05:57,046 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:57,046 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:57,059 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:57,246 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 19:05:57,247 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:57,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:57,247 INFO L85 PathProgramCache]: Analyzing trace with hash -839000168, now seen corresponding path program 1 times [2024-09-12 19:05:57,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:57,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687295541] [2024-09-12 19:05:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:57,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:05:57,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048136614] [2024-09-12 19:05:57,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:57,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:57,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:57,265 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:57,266 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:05:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:57,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-09-12 19:05:57,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:05:57,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:05:57,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:57,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687295541] [2024-09-12 19:05:57,935 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:05:57,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048136614] [2024-09-12 19:05:57,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048136614] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:57,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:57,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-09-12 19:05:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580966855] [2024-09-12 19:05:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:57,938 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:05:57,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:57,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:05:57,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:05:57,939 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:58,468 INFO L93 Difference]: Finished difference Result 120 states and 130 transitions. [2024-09-12 19:05:58,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:58,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-09-12 19:05:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:58,469 INFO L225 Difference]: With dead ends: 120 [2024-09-12 19:05:58,469 INFO L226 Difference]: Without dead ends: 113 [2024-09-12 19:05:58,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:05:58,470 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 27 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:58,471 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 149 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:05:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-09-12 19:05:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2024-09-12 19:05:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 80 states have (on average 1.175) internal successors, (94), 90 states have internal predecessors, (94), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 112 transitions. [2024-09-12 19:05:58,495 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 112 transitions. Word has length 63 [2024-09-12 19:05:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:58,495 INFO L474 AbstractCegarLoop]: Abstraction has 105 states and 112 transitions. [2024-09-12 19:05:58,495 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:05:58,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:58,496 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 112 transitions. [2024-09-12 19:05:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-09-12 19:05:58,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:58,496 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:58,511 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:05:58,697 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:58,697 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:58,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2060534586, now seen corresponding path program 1 times [2024-09-12 19:05:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:58,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197290243] [2024-09-12 19:05:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,757 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,758 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,762 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,764 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:58,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197290243] [2024-09-12 19:05:58,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197290243] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:58,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838493526] [2024-09-12 19:05:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:58,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:58,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:58,771 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:58,774 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:05:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:58,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:05:58,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:58,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:05:58,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838493526] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:58,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:05:58,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:05:58,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197224149] [2024-09-12 19:05:58,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:58,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:05:58,859 INFO L87 Difference]: Start difference. First operand 105 states and 112 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:58,902 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2024-09-12 19:05:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:05:58,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-09-12 19:05:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:58,904 INFO L225 Difference]: With dead ends: 105 [2024-09-12 19:05:58,904 INFO L226 Difference]: Without dead ends: 104 [2024-09-12 19:05:58,904 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 19:05:58,904 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 11 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:58,905 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 110 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-09-12 19:05:58,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-09-12 19:05:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.15) internal successors, (92), 89 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:05:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2024-09-12 19:05:58,928 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 66 [2024-09-12 19:05:58,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:58,928 INFO L474 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2024-09-12 19:05:58,928 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:05:58,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:58,928 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2024-09-12 19:05:58,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:05:58,929 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:58,929 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:58,946 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:59,129 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:59,130 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:59,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:59,130 INFO L85 PathProgramCache]: Analyzing trace with hash -547937190, now seen corresponding path program 1 times [2024-09-12 19:05:59,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:59,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062261074] [2024-09-12 19:05:59,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:59,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,190 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,193 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,196 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,197 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:59,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:59,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062261074] [2024-09-12 19:05:59,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062261074] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:05:59,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620157539] [2024-09-12 19:05:59,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:59,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:05:59,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:05:59,204 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:05:59,205 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:05:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:05:59,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:05:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:59,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:05:59,336 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:05:59,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620157539] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:05:59,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:05:59,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:05:59,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937767314] [2024-09-12 19:05:59,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:05:59,337 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:05:59,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:05:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:05:59,338 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:05:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:59,398 INFO L93 Difference]: Finished difference Result 147 states and 158 transitions. [2024-09-12 19:05:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:05:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 67 [2024-09-12 19:05:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:59,401 INFO L225 Difference]: With dead ends: 147 [2024-09-12 19:05:59,401 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:05:59,401 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:05:59,402 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 14 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:59,402 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 212 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:05:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:05:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-09-12 19:05:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 112 states have (on average 1.1875) internal successors, (133), 121 states have internal predecessors, (133), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:05:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 155 transitions. [2024-09-12 19:05:59,432 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 155 transitions. Word has length 67 [2024-09-12 19:05:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:59,432 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 155 transitions. [2024-09-12 19:05:59,432 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:05:59,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 155 transitions. [2024-09-12 19:05:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-09-12 19:05:59,433 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:59,433 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:59,448 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:05:59,634 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:05:59,634 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:59,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:59,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1534823763, now seen corresponding path program 1 times [2024-09-12 19:05:59,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:59,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315733450] [2024-09-12 19:05:59,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:59,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:05:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,677 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:05:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,679 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:05:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,681 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:05:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:05:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,686 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:05:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,688 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:05:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,689 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:05:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:05:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-09-12 19:05:59,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:05:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315733450] [2024-09-12 19:05:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315733450] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:05:59,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:05:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:05:59,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237049126] [2024-09-12 19:05:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:05:59,694 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:05:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:05:59,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:05:59,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:05:59,695 INFO L87 Difference]: Start difference. First operand 138 states and 155 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:59,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:05:59,956 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2024-09-12 19:05:59,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:05:59,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-09-12 19:05:59,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:05:59,958 INFO L225 Difference]: With dead ends: 138 [2024-09-12 19:05:59,958 INFO L226 Difference]: Without dead ends: 137 [2024-09-12 19:05:59,958 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 19:05:59,959 INFO L434 NwaCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:05:59,959 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 89 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:05:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-09-12 19:05:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-09-12 19:05:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.1785714285714286) internal successors, (132), 120 states have internal predecessors, (132), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:05:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 154 transitions. [2024-09-12 19:05:59,996 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 154 transitions. Word has length 70 [2024-09-12 19:05:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:05:59,996 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 154 transitions. [2024-09-12 19:05:59,996 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:05:59,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 154 transitions. [2024-09-12 19:05:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-09-12 19:05:59,997 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:05:59,997 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:05:59,997 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-09-12 19:05:59,998 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:05:59,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:05:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash 334896508, now seen corresponding path program 1 times [2024-09-12 19:05:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:05:59,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003532346] [2024-09-12 19:05:59,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:05:59,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:06:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:06:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,121 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:06:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:06:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,123 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:06:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,124 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:06:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:06:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-09-12 19:06:00,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:00,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003532346] [2024-09-12 19:06:00,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003532346] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:06:00,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:06:00,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:06:00,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542036026] [2024-09-12 19:06:00,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:06:00,144 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:06:00,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:00,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:06:00,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:06:00,144 INFO L87 Difference]: Start difference. First operand 137 states and 154 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:06:00,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:00,435 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2024-09-12 19:06:00,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:06:00,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-09-12 19:06:00,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:00,437 INFO L225 Difference]: With dead ends: 137 [2024-09-12 19:06:00,438 INFO L226 Difference]: Without dead ends: 135 [2024-09-12 19:06:00,439 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:06:00,439 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:00,440 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 155 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:06:00,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-09-12 19:06:00,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2024-09-12 19:06:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 114 states have internal predecessors, (126), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:06:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 148 transitions. [2024-09-12 19:06:00,473 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 148 transitions. Word has length 71 [2024-09-12 19:06:00,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:00,473 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 148 transitions. [2024-09-12 19:06:00,473 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:06:00,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:00,474 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 148 transitions. [2024-09-12 19:06:00,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 19:06:00,474 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:00,474 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:00,474 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-09-12 19:06:00,475 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:00,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1394614560, now seen corresponding path program 1 times [2024-09-12 19:06:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:00,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510824005] [2024-09-12 19:06:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:00,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:06:00,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658147037] [2024-09-12 19:06:00,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:00,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:00,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:00,490 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:00,491 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:06:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:00,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:06:00,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:00,802 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:06:00,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:01,843 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:06:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510824005] [2024-09-12 19:06:01,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:06:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658147037] [2024-09-12 19:06:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658147037] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:06:01,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:06:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-09-12 19:06:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724377507] [2024-09-12 19:06:01,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:01,845 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:06:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:06:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:06:01,846 INFO L87 Difference]: Start difference. First operand 131 states and 148 transitions. Second operand has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-09-12 19:06:05,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:05,501 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2024-09-12 19:06:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:06:05,502 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 73 [2024-09-12 19:06:05,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:05,503 INFO L225 Difference]: With dead ends: 151 [2024-09-12 19:06:05,504 INFO L226 Difference]: Without dead ends: 149 [2024-09-12 19:06:05,504 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-09-12 19:06:05,504 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 224 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:05,505 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 224 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-09-12 19:06:05,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-09-12 19:06:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 137. [2024-09-12 19:06:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 114 states have (on average 1.1403508771929824) internal successors, (130), 120 states have internal predecessors, (130), 12 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:06:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2024-09-12 19:06:05,539 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 73 [2024-09-12 19:06:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:05,539 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2024-09-12 19:06:05,540 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.875) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-09-12 19:06:05,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2024-09-12 19:06:05,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-09-12 19:06:05,541 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:05,541 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:05,558 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:06:05,741 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:05,741 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:05,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:05,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1058832648, now seen corresponding path program 1 times [2024-09-12 19:06:05,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:05,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165419717] [2024-09-12 19:06:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:05,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:06:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:06:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:06:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:06:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:06:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:06:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,868 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:06:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:06:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165419717] [2024-09-12 19:06:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165419717] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:05,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465703555] [2024-09-12 19:06:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:05,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:05,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:05,890 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:05,891 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:06:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:05,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-12 19:06:05,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:06:06,064 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:06:06,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465703555] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:06:06,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:06:06,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 14 [2024-09-12 19:06:06,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873611278] [2024-09-12 19:06:06,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:06,142 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:06:06,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:06:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:06:06,143 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:06:06,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:06,454 INFO L93 Difference]: Finished difference Result 137 states and 152 transitions. [2024-09-12 19:06:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:06:06,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2024-09-12 19:06:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:06,456 INFO L225 Difference]: With dead ends: 137 [2024-09-12 19:06:06,456 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:06:06,456 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:06:06,456 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:06,457 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 169 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:06:06,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:06:06,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:06:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.116504854368932) internal successors, (115), 108 states have internal predecessors, (115), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:06:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions. [2024-09-12 19:06:06,492 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 77 [2024-09-12 19:06:06,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:06,493 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions. [2024-09-12 19:06:06,493 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 12 states have internal predecessors, (61), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-09-12 19:06:06,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2024-09-12 19:06:06,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 19:06:06,494 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:06,494 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:06,509 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-09-12 19:06:06,694 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:06,695 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:06,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1743760412, now seen corresponding path program 2 times [2024-09-12 19:06:06,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:06,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757109115] [2024-09-12 19:06:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:06:06,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616185781] [2024-09-12 19:06:06,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:06:06,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:06,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:06,707 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:06,710 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:06:06,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:06:06,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:06:06,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:06:06,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:06:07,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:07,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:07,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757109115] [2024-09-12 19:06:07,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:06:07,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616185781] [2024-09-12 19:06:07,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616185781] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:07,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:06:07,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:06:07,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629855265] [2024-09-12 19:06:07,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:07,707 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:06:07,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:06:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:06:07,708 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:06:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:07,988 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2024-09-12 19:06:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:06:07,988 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 76 [2024-09-12 19:06:07,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:07,989 INFO L225 Difference]: With dead ends: 127 [2024-09-12 19:06:07,989 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:06:07,990 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:06:07,990 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 53 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:07,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 120 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:06:07,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:06:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:06:08,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.087378640776699) internal successors, (112), 108 states have internal predecessors, (112), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:06:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 133 transitions. [2024-09-12 19:06:08,037 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 133 transitions. Word has length 76 [2024-09-12 19:06:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:08,038 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 133 transitions. [2024-09-12 19:06:08,038 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:06:08,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 133 transitions. [2024-09-12 19:06:08,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:06:08,038 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:08,039 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:08,047 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-09-12 19:06:08,239 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-09-12 19:06:08,239 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:08,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:08,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2070781274, now seen corresponding path program 3 times [2024-09-12 19:06:08,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:08,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869370996] [2024-09-12 19:06:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:08,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:06:08,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956372005] [2024-09-12 19:06:08,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:06:08,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:08,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:08,257 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:08,259 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:06:08,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-12 19:06:08,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:06:08,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 19:06:08,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:06:08,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:09,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:09,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869370996] [2024-09-12 19:06:09,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:06:09,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956372005] [2024-09-12 19:06:09,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956372005] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:09,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:06:09,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-09-12 19:06:09,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725422171] [2024-09-12 19:06:09,344 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:09,344 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:06:09,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:09,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:06:09,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:06:09,345 INFO L87 Difference]: Start difference. First operand 124 states and 133 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 19:06:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:09,610 INFO L93 Difference]: Finished difference Result 127 states and 133 transitions. [2024-09-12 19:06:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:06:09,610 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 99 [2024-09-12 19:06:09,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:09,611 INFO L225 Difference]: With dead ends: 127 [2024-09-12 19:06:09,611 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:06:09,612 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:06:09,612 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 39 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:09,612 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 196 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:06:09,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:06:09,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:06:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.058252427184466) internal successors, (109), 108 states have internal predecessors, (109), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:06:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2024-09-12 19:06:09,662 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 99 [2024-09-12 19:06:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:09,663 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2024-09-12 19:06:09,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 14 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 19:06:09,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:09,663 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2024-09-12 19:06:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 19:06:09,664 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:09,664 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:09,672 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-09-12 19:06:09,864 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:06:09,864 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:09,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1176105180, now seen corresponding path program 4 times [2024-09-12 19:06:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561102284] [2024-09-12 19:06:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:09,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:06:09,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815630304] [2024-09-12 19:06:09,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 19:06:09,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:09,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:09,880 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:09,882 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:06:09,962 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 19:06:09,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:06:09,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:06:09,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 19:06:10,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:11,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561102284] [2024-09-12 19:06:11,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:06:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815630304] [2024-09-12 19:06:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815630304] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:11,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:06:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-09-12 19:06:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792321840] [2024-09-12 19:06:11,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:11,026 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 19:06:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:11,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 19:06:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:06:11,027 INFO L87 Difference]: Start difference. First operand 124 states and 130 transitions. Second operand has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:06:13,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:06:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:13,795 INFO L93 Difference]: Finished difference Result 146 states and 153 transitions. [2024-09-12 19:06:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:06:13,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 122 [2024-09-12 19:06:13,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:13,796 INFO L225 Difference]: With dead ends: 146 [2024-09-12 19:06:13,796 INFO L226 Difference]: Without dead ends: 142 [2024-09-12 19:06:13,797 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:06:13,797 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:13,797 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 118 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-09-12 19:06:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-09-12 19:06:13,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2024-09-12 19:06:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 119 states have (on average 1.0588235294117647) internal successors, (126), 124 states have internal predecessors, (126), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:06:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 149 transitions. [2024-09-12 19:06:13,844 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 149 transitions. Word has length 122 [2024-09-12 19:06:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:13,844 INFO L474 AbstractCegarLoop]: Abstraction has 141 states and 149 transitions. [2024-09-12 19:06:13,844 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:06:13,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:13,845 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 149 transitions. [2024-09-12 19:06:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-09-12 19:06:13,845 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:13,845 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:13,863 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 19:06:14,046 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:06:14,046 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:14,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1877475152, now seen corresponding path program 2 times [2024-09-12 19:06:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:14,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662479484] [2024-09-12 19:06:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,112 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:06:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,114 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:06:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,116 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:06:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,117 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:06:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,119 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:06:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,122 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:06:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:06:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 19:06:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,132 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 19:06:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,134 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 19:06:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:06:14,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:14,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662479484] [2024-09-12 19:06:14,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662479484] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:14,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375005858] [2024-09-12 19:06:14,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:06:14,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:14,140 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:14,141 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:06:14,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:06:14,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:06:14,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:06:14,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:14,304 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:06:14,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:14,418 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-09-12 19:06:14,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375005858] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:06:14,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:06:14,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-12 19:06:14,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25612851] [2024-09-12 19:06:14,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:14,419 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:06:14,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:14,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:06:14,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:06:14,420 INFO L87 Difference]: Start difference. First operand 141 states and 149 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:06:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:14,498 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2024-09-12 19:06:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:06:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 136 [2024-09-12 19:06:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:14,500 INFO L225 Difference]: With dead ends: 141 [2024-09-12 19:06:14,500 INFO L226 Difference]: Without dead ends: 140 [2024-09-12 19:06:14,500 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:06:14,501 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:14,501 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 115 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:06:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-09-12 19:06:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-09-12 19:06:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 119 states have (on average 1.0420168067226891) internal successors, (124), 123 states have internal predecessors, (124), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:06:14,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 147 transitions. [2024-09-12 19:06:14,562 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 147 transitions. Word has length 136 [2024-09-12 19:06:14,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:14,562 INFO L474 AbstractCegarLoop]: Abstraction has 140 states and 147 transitions. [2024-09-12 19:06:14,562 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-09-12 19:06:14,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:14,563 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 147 transitions. [2024-09-12 19:06:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-09-12 19:06:14,564 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:06:14,564 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:14,581 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-09-12 19:06:14,764 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:06:14,765 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-09-12 19:06:14,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash 459434902, now seen corresponding path program 2 times [2024-09-12 19:06:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:06:14,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177724293] [2024-09-12 19:06:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:06:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:06:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:06:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:06:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,964 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:06:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,983 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:06:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-09-12 19:06:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,987 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-09-12 19:06:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,990 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:06:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-09-12 19:06:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-09-12 19:06:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,996 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-09-12 19:06:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:06:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 143 proven. 56 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-12 19:06:14,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:06:14,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177724293] [2024-09-12 19:06:14,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177724293] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:06:14,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295715824] [2024-09-12 19:06:14,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:06:14,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:14,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:06:15,001 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:06:15,002 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:06:15,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:06:15,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:06:15,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:06:15,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:06:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 193 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-12 19:06:15,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:06:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 193 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-09-12 19:06:15,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295715824] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:06:15,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:06:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2024-09-12 19:06:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012785086] [2024-09-12 19:06:15,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:06:15,557 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:06:15,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:06:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:06:15,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:06:15,558 INFO L87 Difference]: Start difference. First operand 140 states and 147 transitions. Second operand has 18 states, 18 states have (on average 11.166666666666666) internal successors, (201), 16 states have internal predecessors, (201), 14 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-12 19:06:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:06:15,702 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2024-09-12 19:06:15,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:06:15,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.166666666666666) internal successors, (201), 16 states have internal predecessors, (201), 14 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) Word has length 142 [2024-09-12 19:06:15,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:06:15,703 INFO L225 Difference]: With dead ends: 144 [2024-09-12 19:06:15,704 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:06:15,704 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 292 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:06:15,705 INFO L434 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:06:15,705 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:06:15,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:06:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:06:15,705 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 19:06:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:06:15,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2024-09-12 19:06:15,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:06:15,706 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:06:15,706 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.166666666666666) internal successors, (201), 16 states have internal predecessors, (201), 14 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19) [2024-09-12 19:06:15,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:06:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:06:15,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:06:15,711 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-09-12 19:06:15,712 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-09-12 19:06:15,713 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-09-12 19:06:15,714 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2024-09-12 19:06:15,732 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-09-12 19:06:15,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:06:15,918 INFO L408 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:06:15,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:06:32,158 WARN L293 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 87 DAG size of output: 60 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:06:41,117 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 90 DAG size of output: 60 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:06:57,264 WARN L293 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 90 DAG size of output: 60 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:07:10,634 WARN L293 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 90 DAG size of output: 60 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:07:22,815 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 88 DAG size of output: 57 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:07:34,529 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 88 DAG size of output: 57 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-09-12 19:07:35,744 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:07:35,760 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-12 19:07:35,761 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-12 19:07:35,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:07:35 BoogieIcfgContainer [2024-09-12 19:07:35,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:07:35,769 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:07:35,770 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:07:35,770 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:07:35,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:05:44" (3/4) ... [2024-09-12 19:07:35,772 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:07:35,776 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:07:35,776 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-09-12 19:07:35,777 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:07:35,777 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:07:35,781 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-09-12 19:07:35,782 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-12 19:07:35,783 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:07:35,783 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:07:35,863 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:07:35,863 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:07:35,864 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:07:35,864 INFO L158 Benchmark]: Toolchain (without parser) took 112076.62ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 38.3MB in the beginning and 64.0MB in the end (delta: -25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,864 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:07:35,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 26.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.45ms. Allocated memory is still 60.8MB. Free memory was 26.5MB in the beginning and 25.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,865 INFO L158 Benchmark]: Boogie Preprocessor took 76.22ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 25.2MB in the beginning and 58.2MB in the end (delta: -33.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,865 INFO L158 Benchmark]: RCFGBuilder took 612.13ms. Allocated memory is still 77.6MB. Free memory was 57.9MB in the beginning and 41.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,866 INFO L158 Benchmark]: TraceAbstraction took 111049.31ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 41.1MB in the beginning and 69.2MB in the end (delta: -28.1MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,866 INFO L158 Benchmark]: Witness Printer took 94.40ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 64.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 19:07:35,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 35.5MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 26.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.45ms. Allocated memory is still 60.8MB. Free memory was 26.5MB in the beginning and 25.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.22ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 25.2MB in the beginning and 58.2MB in the end (delta: -33.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * RCFGBuilder took 612.13ms. Allocated memory is still 77.6MB. Free memory was 57.9MB in the beginning and 41.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 111049.31ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 41.1MB in the beginning and 69.2MB in the end (delta: -28.1MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Witness Printer took 94.40ms. Allocated memory is still 113.2MB. Free memory was 69.2MB in the beginning and 64.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 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: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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 5 procedures, 77 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 31.1s, OverallIterations: 30, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1088 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1062 mSDsluCounter, 4534 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3223 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4516 IncrementalHoareTripleChecker+Invalid, 4595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 1311 mSDtfsCounter, 4516 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2497 GetRequests, 2279 SyntacticMatches, 5 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=28, InterpolantAutomatonStates: 202, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 30 MinimizatonAttempts, 76 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 3295 NumberOfCodeBlocks, 3295 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 3081 ConstructedInterpolants, 48 QuantifiedInterpolants, 13107 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2808 ConjunctsInSsa, 250 ConjunctsInUnsatCore, 46 InterpolantComputations, 16 PerfectInterpolantSequences, 2385/2930 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: 36]: Loop Invariant Derived loop invariant: (((((((((((k <= 5) && (z <= 5)) && (1 <= k)) && (c == 2)) && (1 <= z)) && (((long long) z * z) == y)) && (x == ((long long) z + 1))) || (((((((((((__int128) z * x) + 1) == (y + x)) && (k <= 5)) && (z <= 5)) && (1 <= k)) && (c <= 9223372036854775806)) && (((long long) z + 1) <= x)) && (1 <= z)) && (5 <= c))) || (((((((((((__int128) z * x) + 1) == (y + x)) && (k <= 5)) && (z <= 5)) && (1 <= k)) && (c <= 9223372036854775806)) && (((long long) z + 1) <= x)) && (1 <= z)) && (4 <= c))) || (((((((k <= 5) && (z <= 5)) && (z == y)) && (1 <= k)) && (x == 1)) && (1 <= z)) && (c == 1))) || (((((((((((__int128) z * x) + 1) == (y + x)) && (k <= 5)) && (z <= 5)) && (1 <= k)) && (3 <= c)) && (1 <= z)) && (c <= 9223372036854775805)) && (x == ((((long long) z * z) + z) + 1)))) - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (\old(cond) != 0) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:07:36,023 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE