./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.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/ps5-ll_valuebound20.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 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 --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 19:41:07,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:41:07,998 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:41:08,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:41:08,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:41:08,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:41:08,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:41:08,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:41:08,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:41:08,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:41:08,039 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:41:08,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:41:08,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:41:08,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:41:08,042 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:41:08,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:41:08,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:41:08,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:41:08,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:41:08,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:41:08,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:41:08,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:41:08,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:41:08,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:41:08,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:41:08,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:41:08,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:41:08,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:41:08,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:41:08,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:41:08,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:41:08,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:41:08,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:41:08,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:41:08,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:41:08,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:41:08,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:41:08,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:41:08,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:41:08,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:41:08,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:41:08,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:41:08,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7921702b8cbecd5225031321150d70ea7b40d7d08ee6ac9909ff47d4f7b99139 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:41:08,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:41:08,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:41:08,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:41:08,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:41:08,408 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:41:08,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2024-09-12 19:41:09,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:41:09,961 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:41:09,962 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound20.c [2024-09-12 19:41:09,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/af64b902e/1d2da3f3c84344dd8647551d1685fd5e/FLAG2dac3fc09 [2024-09-12 19:41:10,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/af64b902e/1d2da3f3c84344dd8647551d1685fd5e [2024-09-12 19:41:10,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:41:10,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:41:10,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:41:10,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:41:10,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:41:10,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4bdaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10, skipping insertion in model container [2024-09-12 19:41:10,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:41:10,531 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/ps5-ll_valuebound20.c[458,471] [2024-09-12 19:41:10,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:41:10,591 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:41:10,605 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/ps5-ll_valuebound20.c[458,471] [2024-09-12 19:41:10,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:41:10,632 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:41:10,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10 WrapperNode [2024-09-12 19:41:10,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:41:10,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:41:10,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:41:10,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:41:10,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,657 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:41:10,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:41:10,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:41:10,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:41:10,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:41:10,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,685 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 19:41:10,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,691 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:41:10,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:41:10,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:41:10,701 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:41:10,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (1/1) ... [2024-09-12 19:41:10,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:41:10,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:10,738 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 19:41:10,742 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 19:41:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:41:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:41:10,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:41:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:41:10,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:41:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:41:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:41:10,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:41:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:41:10,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:41:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:41:10,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:41:10,858 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:41:10,860 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:41:11,339 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-09-12 19:41:11,339 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:41:11,376 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:41:11,376 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:41:11,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:41:11 BoogieIcfgContainer [2024-09-12 19:41:11,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:41:11,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:41:11,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:41:11,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:41:11,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:41:10" (1/3) ... [2024-09-12 19:41:11,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bad96ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:41:11, skipping insertion in model container [2024-09-12 19:41:11,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:41:10" (2/3) ... [2024-09-12 19:41:11,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bad96ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:41:11, skipping insertion in model container [2024-09-12 19:41:11,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:41:11" (3/3) ... [2024-09-12 19:41:11,386 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound20.c [2024-09-12 19:41:11,401 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:41:11,402 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 85 error locations. [2024-09-12 19:41:11,467 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:41:11,471 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;@6f3e95c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:41:11,472 INFO L337 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-09-12 19:41:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:41:11,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:41:11,481 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:11,481 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:11,482 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:11,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:11,487 INFO L85 PathProgramCache]: Analyzing trace with hash 788119831, now seen corresponding path program 1 times [2024-09-12 19:41:11,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:11,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379508520] [2024-09-12 19:41:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:11,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,652 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:11,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379508520] [2024-09-12 19:41:11,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379508520] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:11,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:11,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:11,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635137723] [2024-09-12 19:41:11,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:11,667 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:41:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:41:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:41:11,693 INFO L87 Difference]: Start difference. First operand has 195 states, 98 states have (on average 1.9183673469387754) internal successors, (188), 183 states have internal predecessors, (188), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:41:11,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:11,753 INFO L93 Difference]: Finished difference Result 371 states and 402 transitions. [2024-09-12 19:41:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:41:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 19:41:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:11,765 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:41:11,765 INFO L226 Difference]: Without dead ends: 178 [2024-09-12 19:41:11,771 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 19:41:11,775 INFO L434 NwaCegarLoop]: 183 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, 183 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 19:41:11,776 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-09-12 19:41:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-09-12 19:41:11,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 96 states have (on average 1.7604166666666667) internal successors, (169), 168 states have internal predecessors, (169), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:41:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 181 transitions. [2024-09-12 19:41:11,827 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 181 transitions. Word has length 18 [2024-09-12 19:41:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:11,827 INFO L474 AbstractCegarLoop]: Abstraction has 178 states and 181 transitions. [2024-09-12 19:41:11,828 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:41:11,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 181 transitions. [2024-09-12 19:41:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 19:41:11,829 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:11,830 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:11,830 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:41:11,830 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:11,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1546442672, now seen corresponding path program 1 times [2024-09-12 19:41:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:11,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113304627] [2024-09-12 19:41:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:11,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,939 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,973 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:11,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:11,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113304627] [2024-09-12 19:41:11,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113304627] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:11,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:11,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:11,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587697340] [2024-09-12 19:41:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:11,985 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:11,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:11,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:11,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:11,986 INFO L87 Difference]: Start difference. First operand 178 states and 181 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:12,398 INFO L93 Difference]: Finished difference Result 316 states and 330 transitions. [2024-09-12 19:41:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-09-12 19:41:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:12,402 INFO L225 Difference]: With dead ends: 316 [2024-09-12 19:41:12,403 INFO L226 Difference]: Without dead ends: 265 [2024-09-12 19:41:12,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:41:12,405 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 83 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:12,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 137 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:41:12,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-09-12 19:41:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 258. [2024-09-12 19:41:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 174 states have (on average 1.5057471264367817) internal successors, (262), 246 states have internal predecessors, (262), 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 19:41:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 278 transitions. [2024-09-12 19:41:12,466 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 278 transitions. Word has length 18 [2024-09-12 19:41:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:12,467 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 278 transitions. [2024-09-12 19:41:12,468 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:12,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 278 transitions. [2024-09-12 19:41:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:41:12,469 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:12,471 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:12,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:41:12,472 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:12,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash 541681420, now seen corresponding path program 1 times [2024-09-12 19:41:12,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:12,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168256950] [2024-09-12 19:41:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,607 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:12,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:12,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168256950] [2024-09-12 19:41:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168256950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:12,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:12,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:12,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774359854] [2024-09-12 19:41:12,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:12,620 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:12,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:12,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:12,624 INFO L87 Difference]: Start difference. First operand 258 states and 278 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:12,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:12,719 INFO L93 Difference]: Finished difference Result 278 states and 293 transitions. [2024-09-12 19:41:12,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:12,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-09-12 19:41:12,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:12,721 INFO L225 Difference]: With dead ends: 278 [2024-09-12 19:41:12,722 INFO L226 Difference]: Without dead ends: 273 [2024-09-12 19:41:12,722 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 19:41:12,723 INFO L434 NwaCegarLoop]: 157 mSDtfsCounter, 63 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:12,724 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 307 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:12,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-09-12 19:41:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2024-09-12 19:41:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4861878453038675) internal successors, (269), 253 states have internal predecessors, (269), 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 19:41:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 285 transitions. [2024-09-12 19:41:12,744 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 285 transitions. Word has length 46 [2024-09-12 19:41:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:12,744 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 285 transitions. [2024-09-12 19:41:12,744 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:12,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 285 transitions. [2024-09-12 19:41:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:41:12,746 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:12,746 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:12,746 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:41:12,747 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:12,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash 864805486, now seen corresponding path program 1 times [2024-09-12 19:41:12,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:12,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452775343] [2024-09-12 19:41:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,922 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,927 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,933 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:12,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:12,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452775343] [2024-09-12 19:41:12,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452775343] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:12,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:12,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:12,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226632796] [2024-09-12 19:41:12,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:12,939 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:12,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:12,941 INFO L87 Difference]: Start difference. First operand 265 states and 285 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:13,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:13,179 INFO L93 Difference]: Finished difference Result 277 states and 288 transitions. [2024-09-12 19:41:13,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:13,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-09-12 19:41:13,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:13,181 INFO L225 Difference]: With dead ends: 277 [2024-09-12 19:41:13,181 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:41:13,182 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 19:41:13,185 INFO L434 NwaCegarLoop]: 90 mSDtfsCounter, 143 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:13,185 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 240 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:41:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:41:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:41:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4585635359116023) internal successors, (264), 253 states have internal predecessors, (264), 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 19:41:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2024-09-12 19:41:13,249 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 48 [2024-09-12 19:41:13,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:13,250 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2024-09-12 19:41:13,250 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:13,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2024-09-12 19:41:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:41:13,253 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:13,253 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:13,253 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:41:13,253 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:13,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:13,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1039166409, now seen corresponding path program 1 times [2024-09-12 19:41:13,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:13,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302556641] [2024-09-12 19:41:13,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:13,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:13,368 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:13,371 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:13,375 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:13,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302556641] [2024-09-12 19:41:13,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302556641] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:13,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:13,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642875626] [2024-09-12 19:41:13,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:13,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:13,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:13,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:13,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:13,382 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:13,605 INFO L93 Difference]: Finished difference Result 276 states and 283 transitions. [2024-09-12 19:41:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:13,605 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-09-12 19:41:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:13,607 INFO L225 Difference]: With dead ends: 276 [2024-09-12 19:41:13,607 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 19:41:13,608 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 19:41:13,610 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 135 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:13,614 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 253 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:41:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 19:41:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-09-12 19:41:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 181 states have (on average 1.4364640883977902) internal successors, (260), 253 states have internal predecessors, (260), 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 19:41:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 276 transitions. [2024-09-12 19:41:13,669 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 276 transitions. Word has length 49 [2024-09-12 19:41:13,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:13,673 INFO L474 AbstractCegarLoop]: Abstraction has 265 states and 276 transitions. [2024-09-12 19:41:13,674 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:13,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 276 transitions. [2024-09-12 19:41:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:41:13,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:13,676 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:13,677 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:41:13,677 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:13,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1557113381, now seen corresponding path program 1 times [2024-09-12 19:41:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32175777] [2024-09-12 19:41:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:13,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109167165] [2024-09-12 19:41:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:13,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:13,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:13,707 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 19:41:13,708 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 19:41:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:13,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:41:13,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:14,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:14,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32175777] [2024-09-12 19:41:14,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:14,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109167165] [2024-09-12 19:41:14,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109167165] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:14,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:41:14,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496402726] [2024-09-12 19:41:14,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:14,038 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:41:14,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:41:14,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:41:14,039 INFO L87 Difference]: Start difference. First operand 265 states and 276 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:14,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:14,503 INFO L93 Difference]: Finished difference Result 274 states and 282 transitions. [2024-09-12 19:41:14,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:41:14,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2024-09-12 19:41:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:14,507 INFO L225 Difference]: With dead ends: 274 [2024-09-12 19:41:14,507 INFO L226 Difference]: Without dead ends: 232 [2024-09-12 19:41:14,508 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 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 19:41:14,510 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 48 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:14,512 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 328 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:41:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-09-12 19:41:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2024-09-12 19:41:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 218 states have internal predecessors, (224), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:41:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 238 transitions. [2024-09-12 19:41:14,537 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 238 transitions. Word has length 55 [2024-09-12 19:41:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:14,538 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 238 transitions. [2024-09-12 19:41:14,538 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 19:41:14,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 238 transitions. [2024-09-12 19:41:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:41:14,539 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:14,539 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:14,556 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:41:14,743 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 19:41:14,744 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:14,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1982018601, now seen corresponding path program 1 times [2024-09-12 19:41:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:14,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716173031] [2024-09-12 19:41:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,825 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,828 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,831 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,833 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:14,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:14,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716173031] [2024-09-12 19:41:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716173031] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:14,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:14,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220394306] [2024-09-12 19:41:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:14,842 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:14,843 INFO L87 Difference]: Start difference. First operand 230 states and 238 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:14,885 INFO L93 Difference]: Finished difference Result 232 states and 238 transitions. [2024-09-12 19:41:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:14,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-09-12 19:41:14,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:14,888 INFO L225 Difference]: With dead ends: 232 [2024-09-12 19:41:14,889 INFO L226 Difference]: Without dead ends: 230 [2024-09-12 19:41:14,889 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:14,889 INFO L434 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:14,890 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 349 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-09-12 19:41:14,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-09-12 19:41:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 146 states have (on average 1.5205479452054795) internal successors, (222), 218 states have internal predecessors, (222), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:41:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 236 transitions. [2024-09-12 19:41:14,920 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 236 transitions. Word has length 58 [2024-09-12 19:41:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:14,921 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 236 transitions. [2024-09-12 19:41:14,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:14,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 236 transitions. [2024-09-12 19:41:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:41:14,924 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:14,924 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:14,924 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:41:14,924 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:14,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:14,925 INFO L85 PathProgramCache]: Analyzing trace with hash -247093952, now seen corresponding path program 1 times [2024-09-12 19:41:14,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:14,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787797995] [2024-09-12 19:41:14,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:14,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601530725] [2024-09-12 19:41:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:14,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:14,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:14,948 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 19:41:14,950 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 19:41:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:14,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:41:15,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:15,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:15,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:15,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787797995] [2024-09-12 19:41:15,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:15,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601530725] [2024-09-12 19:41:15,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601530725] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:15,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:15,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:15,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994658980] [2024-09-12 19:41:15,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:15,076 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:15,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:15,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:15,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:15,077 INFO L87 Difference]: Start difference. First operand 230 states and 236 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:15,493 INFO L93 Difference]: Finished difference Result 370 states and 387 transitions. [2024-09-12 19:41:15,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:15,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2024-09-12 19:41:15,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:15,496 INFO L225 Difference]: With dead ends: 370 [2024-09-12 19:41:15,496 INFO L226 Difference]: Without dead ends: 318 [2024-09-12 19:41:15,497 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 19:41:15,497 INFO L434 NwaCegarLoop]: 99 mSDtfsCounter, 91 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:15,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 168 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:41:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-09-12 19:41:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 311. [2024-09-12 19:41:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4044444444444444) internal successors, (316), 297 states have internal predecessors, (316), 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 19:41:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 334 transitions. [2024-09-12 19:41:15,526 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 334 transitions. Word has length 63 [2024-09-12 19:41:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:15,526 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 334 transitions. [2024-09-12 19:41:15,526 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:15,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 334 transitions. [2024-09-12 19:41:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-09-12 19:41:15,530 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:15,530 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:15,554 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 19:41:15,742 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:15,742 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:15,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1014359322, now seen corresponding path program 1 times [2024-09-12 19:41:15,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:15,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637383986] [2024-09-12 19:41:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:15,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:41:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:15,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:41:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:15,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:41:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:15,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:41:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:15,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:15,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637383986] [2024-09-12 19:41:15,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637383986] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:15,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:15,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:41:15,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552888877] [2024-09-12 19:41:15,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:15,859 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:41:15,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:15,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:41:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:41:15,860 INFO L87 Difference]: Start difference. First operand 311 states and 334 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:15,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:15,974 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2024-09-12 19:41:15,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:41:15,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-09-12 19:41:15,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:15,976 INFO L225 Difference]: With dead ends: 312 [2024-09-12 19:41:15,977 INFO L226 Difference]: Without dead ends: 311 [2024-09-12 19:41:15,977 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 19:41:15,978 INFO L434 NwaCegarLoop]: 142 mSDtfsCounter, 39 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:15,979 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 292 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:41:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-09-12 19:41:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-09-12 19:41:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.4) internal successors, (315), 297 states have internal predecessors, (315), 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 19:41:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 333 transitions. [2024-09-12 19:41:16,009 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 333 transitions. Word has length 69 [2024-09-12 19:41:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:16,009 INFO L474 AbstractCegarLoop]: Abstraction has 311 states and 333 transitions. [2024-09-12 19:41:16,010 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:16,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 333 transitions. [2024-09-12 19:41:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:41:16,011 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:16,011 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:16,011 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:41:16,012 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:16,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash 967785380, now seen corresponding path program 1 times [2024-09-12 19:41:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:16,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419159242] [2024-09-12 19:41:16,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:16,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:16,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014611225] [2024-09-12 19:41:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:16,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:16,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:16,038 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 19:41:16,039 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 19:41:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:16,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:41:16,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-12 19:41:16,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:41:16,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:16,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419159242] [2024-09-12 19:41:16,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:16,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014611225] [2024-09-12 19:41:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014611225] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:41:16,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:41:16,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:41:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992753994] [2024-09-12 19:41:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:16,219 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:41:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:41:16,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:41:16,221 INFO L87 Difference]: Start difference. First operand 311 states and 333 transitions. Second operand has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:16,298 INFO L93 Difference]: Finished difference Result 311 states and 333 transitions. [2024-09-12 19:41:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:41:16,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 99 [2024-09-12 19:41:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:16,301 INFO L225 Difference]: With dead ends: 311 [2024-09-12 19:41:16,301 INFO L226 Difference]: Without dead ends: 308 [2024-09-12 19:41:16,301 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 1 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 19:41:16,301 INFO L434 NwaCegarLoop]: 152 mSDtfsCounter, 96 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:16,302 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 170 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:41:16,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-09-12 19:41:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-09-12 19:41:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 294 states have internal predecessors, (310), 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 19:41:16,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 328 transitions. [2024-09-12 19:41:16,334 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 328 transitions. Word has length 99 [2024-09-12 19:41:16,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:16,335 INFO L474 AbstractCegarLoop]: Abstraction has 308 states and 328 transitions. [2024-09-12 19:41:16,335 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:16,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:16,335 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 328 transitions. [2024-09-12 19:41:16,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-09-12 19:41:16,346 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:16,347 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:16,363 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 19:41:16,547 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 19:41:16,548 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:16,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:16,548 INFO L85 PathProgramCache]: Analyzing trace with hash -63424177, now seen corresponding path program 1 times [2024-09-12 19:41:16,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:16,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225938420] [2024-09-12 19:41:16,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:16,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406598436] [2024-09-12 19:41:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:16,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:16,568 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 19:41:16,569 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 19:41:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:16,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:41:16,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:16,843 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:17,072 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:17,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225938420] [2024-09-12 19:41:17,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406598436] [2024-09-12 19:41:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406598436] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:41:17,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:41:17,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:41:17,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260444439] [2024-09-12 19:41:17,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:41:17,075 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:41:17,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:41:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:41:17,076 INFO L87 Difference]: Start difference. First operand 308 states and 328 transitions. Second operand has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:17,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:41:17,972 INFO L93 Difference]: Finished difference Result 381 states and 397 transitions. [2024-09-12 19:41:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:41:17,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 100 [2024-09-12 19:41:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:41:17,974 INFO L225 Difference]: With dead ends: 381 [2024-09-12 19:41:17,974 INFO L226 Difference]: Without dead ends: 374 [2024-09-12 19:41:17,975 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:41:17,976 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 294 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:41:17,976 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 362 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:41:17,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-09-12 19:41:18,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 346. [2024-09-12 19:41:18,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 264 states have (on average 1.3977272727272727) internal successors, (369), 332 states have internal predecessors, (369), 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 19:41:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 387 transitions. [2024-09-12 19:41:18,029 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 387 transitions. Word has length 100 [2024-09-12 19:41:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:41:18,029 INFO L474 AbstractCegarLoop]: Abstraction has 346 states and 387 transitions. [2024-09-12 19:41:18,029 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.0) internal successors, (168), 8 states have internal predecessors, (168), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:41:18,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:18,030 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 387 transitions. [2024-09-12 19:41:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:41:18,031 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:41:18,031 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:41:18,047 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:41:18,231 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:18,232 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:41:18,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:41:18,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1966149370, now seen corresponding path program 1 times [2024-09-12 19:41:18,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:41:18,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667242504] [2024-09-12 19:41:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:18,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:41:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:41:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779037465] [2024-09-12 19:41:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:41:18,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:41:18,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:41:18,276 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 19:41:18,277 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 19:41:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:41:18,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:41:18,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:41:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:18,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:41:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:41:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:41:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667242504] [2024-09-12 19:41:21,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:41:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779037465] [2024-09-12 19:41:21,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779037465] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:41:21,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:41:21,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-09-12 19:41:21,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020451931] [2024-09-12 19:41:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:41:21,808 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:41:21,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:41:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:41:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:41:21,809 INFO L87 Difference]: Start difference. First operand 346 states and 387 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:41:26,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:28,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:31,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:33,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:35,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:40,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:44,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:46,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:51,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:55,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:41:57,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:01,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:05,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:05,995 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2024-09-12 19:42:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:05,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 101 [2024-09-12 19:42:05,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:05,997 INFO L225 Difference]: With dead ends: 346 [2024-09-12 19:42:05,997 INFO L226 Difference]: Without dead ends: 344 [2024-09-12 19:42:05,998 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:05,998 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 197 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:05,998 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 91 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 44.0s Time] [2024-09-12 19:42:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-09-12 19:42:06,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-09-12 19:42:06,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 330 states have internal predecessors, (365), 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 19:42:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 383 transitions. [2024-09-12 19:42:06,097 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 383 transitions. Word has length 101 [2024-09-12 19:42:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:06,097 INFO L474 AbstractCegarLoop]: Abstraction has 344 states and 383 transitions. [2024-09-12 19:42:06,097 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:06,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 383 transitions. [2024-09-12 19:42:06,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-09-12 19:42:06,098 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:06,099 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:06,116 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 19:42:06,303 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-09-12 19:42:06,304 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:06,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash -821088207, now seen corresponding path program 1 times [2024-09-12 19:42:06,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:06,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210031745] [2024-09-12 19:42:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:06,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706919671] [2024-09-12 19:42:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:06,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:06,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:06,337 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 19:42:06,338 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 19:42:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:06,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:42:06,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:06,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210031745] [2024-09-12 19:42:06,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706919671] [2024-09-12 19:42:06,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706919671] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:42:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269723211] [2024-09-12 19:42:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:06,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:42:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:06,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:42:06,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:06,515 INFO L87 Difference]: Start difference. First operand 344 states and 383 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:07,102 INFO L93 Difference]: Finished difference Result 344 states and 383 transitions. [2024-09-12 19:42:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:07,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 102 [2024-09-12 19:42:07,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:07,105 INFO L225 Difference]: With dead ends: 344 [2024-09-12 19:42:07,105 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:42:07,105 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:07,105 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 115 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:07,106 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 94 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:42:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:42:07,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:42:07,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 264 states have (on average 1.268939393939394) internal successors, (335), 310 states have internal predecessors, (335), 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 19:42:07,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 353 transitions. [2024-09-12 19:42:07,209 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 353 transitions. Word has length 102 [2024-09-12 19:42:07,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:07,210 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 353 transitions. [2024-09-12 19:42:07,210 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:07,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:07,210 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 353 transitions. [2024-09-12 19:42:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-09-12 19:42:07,211 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:07,212 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:42:07,235 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:42:07,412 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 19:42:07,412 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:07,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash 316069480, now seen corresponding path program 1 times [2024-09-12 19:42:07,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:07,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423024755] [2024-09-12 19:42:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:07,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:07,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611012542] [2024-09-12 19:42:07,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:07,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:07,434 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 19:42:07,435 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 19:42:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:07,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:07,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:07,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-09-12 19:42:07,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:07,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423024755] [2024-09-12 19:42:07,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:07,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611012542] [2024-09-12 19:42:07,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611012542] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:07,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:07,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-12 19:42:07,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781139621] [2024-09-12 19:42:07,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:07,967 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:07,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:07,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:07,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:07,968 INFO L87 Difference]: Start difference. First operand 324 states and 353 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:11,015 INFO L93 Difference]: Finished difference Result 324 states and 353 transitions. [2024-09-12 19:42:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:11,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2024-09-12 19:42:11,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:11,017 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:42:11,017 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:42:11,018 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:11,018 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:11,018 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 72 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-09-12 19:42:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:42:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-09-12 19:42:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 264 states have (on average 1.253787878787879) internal successors, (331), 308 states have internal predecessors, (331), 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 19:42:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 349 transitions. [2024-09-12 19:42:11,131 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 349 transitions. Word has length 103 [2024-09-12 19:42:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:11,131 INFO L474 AbstractCegarLoop]: Abstraction has 322 states and 349 transitions. [2024-09-12 19:42:11,132 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:11,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 349 transitions. [2024-09-12 19:42:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-09-12 19:42:11,133 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:11,133 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 19:42:11,149 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 19:42:11,333 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:11,334 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:11,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash 682896451, now seen corresponding path program 1 times [2024-09-12 19:42:11,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:11,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699267222] [2024-09-12 19:42:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:11,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:11,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638080858] [2024-09-12 19:42:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:11,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:11,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:11,355 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 19:42:11,356 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 19:42:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:11,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:42:11,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:42:11,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-09-12 19:42:11,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:11,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699267222] [2024-09-12 19:42:11,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:11,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638080858] [2024-09-12 19:42:11,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638080858] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:11,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:11,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-09-12 19:42:11,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981602692] [2024-09-12 19:42:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:11,832 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:11,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:11,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:11,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:42:11,833 INFO L87 Difference]: Start difference. First operand 322 states and 349 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:13,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:13,094 INFO L93 Difference]: Finished difference Result 328 states and 354 transitions. [2024-09-12 19:42:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:13,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 108 [2024-09-12 19:42:13,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:13,096 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:42:13,096 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:42:13,097 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:13,097 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 83 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:13,100 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 111 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:42:13,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:42:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:42:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 266 states have (on average 1.2481203007518797) internal successors, (332), 309 states have internal predecessors, (332), 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 19:42:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 350 transitions. [2024-09-12 19:42:13,248 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 350 transitions. Word has length 108 [2024-09-12 19:42:13,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:13,248 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 350 transitions. [2024-09-12 19:42:13,248 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:42:13,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 350 transitions. [2024-09-12 19:42:13,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-09-12 19:42:13,249 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:13,249 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:42:13,265 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 19:42:13,450 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:13,450 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:13,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1086921535, now seen corresponding path program 1 times [2024-09-12 19:42:13,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:13,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121674421] [2024-09-12 19:42:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,554 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:13,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121674421] [2024-09-12 19:42:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121674421] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955900853] [2024-09-12 19:42:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:13,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:13,578 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 19:42:13,580 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 19:42:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:13,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:42:13,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:13,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:13,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955900853] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-09-12 19:42:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394087283] [2024-09-12 19:42:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:13,720 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:13,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:13,721 INFO L87 Difference]: Start difference. First operand 324 states and 350 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:42:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:13,855 INFO L93 Difference]: Finished difference Result 324 states and 350 transitions. [2024-09-12 19:42:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 111 [2024-09-12 19:42:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:13,857 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:42:13,857 INFO L226 Difference]: Without dead ends: 323 [2024-09-12 19:42:13,857 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 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 19:42:13,858 INFO L434 NwaCegarLoop]: 183 mSDtfsCounter, 49 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 293 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 19:42:13,858 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 293 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:42:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-09-12 19:42:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-09-12 19:42:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 266 states have (on average 1.2406015037593985) internal successors, (330), 308 states have internal predecessors, (330), 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 19:42:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 348 transitions. [2024-09-12 19:42:14,021 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 348 transitions. Word has length 111 [2024-09-12 19:42:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:14,022 INFO L474 AbstractCegarLoop]: Abstraction has 323 states and 348 transitions. [2024-09-12 19:42:14,022 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:42:14,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 348 transitions. [2024-09-12 19:42:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-09-12 19:42:14,023 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:14,023 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 19:42:14,040 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 19:42:14,223 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:42:14,224 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:14,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash 665170916, now seen corresponding path program 1 times [2024-09-12 19:42:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:14,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814474384] [2024-09-12 19:42:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:14,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814474384] [2024-09-12 19:42:14,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814474384] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979422896] [2024-09-12 19:42:14,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:14,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:14,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:14,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:42:14,341 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 19:42:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:14,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:42:14,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:14,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979422896] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:14,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:42:14,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-09-12 19:42:14,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027154260] [2024-09-12 19:42:14,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:14,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:42:14,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:42:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:42:14,585 INFO L87 Difference]: Start difference. First operand 323 states and 348 transitions. Second operand has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:42:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:14,792 INFO L93 Difference]: Finished difference Result 422 states and 435 transitions. [2024-09-12 19:42:14,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:14,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 112 [2024-09-12 19:42:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:14,795 INFO L225 Difference]: With dead ends: 422 [2024-09-12 19:42:14,795 INFO L226 Difference]: Without dead ends: 421 [2024-09-12 19:42:14,795 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 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 19:42:14,796 INFO L434 NwaCegarLoop]: 147 mSDtfsCounter, 51 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 639 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 19:42:14,796 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 639 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:42:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-09-12 19:42:14,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 380. [2024-09-12 19:42:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 321 states have (on average 1.277258566978193) internal successors, (410), 363 states have internal predecessors, (410), 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 19:42:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 432 transitions. [2024-09-12 19:42:14,943 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 432 transitions. Word has length 112 [2024-09-12 19:42:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:14,944 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 432 transitions. [2024-09-12 19:42:14,944 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.833333333333336) internal successors, (221), 7 states have internal predecessors, (221), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 19:42:14,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 432 transitions. [2024-09-12 19:42:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-09-12 19:42:14,945 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:14,946 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 19:42:14,958 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 19:42:15,146 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 19:42:15,146 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:15,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:15,147 INFO L85 PathProgramCache]: Analyzing trace with hash -309786960, now seen corresponding path program 1 times [2024-09-12 19:42:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:15,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496278293] [2024-09-12 19:42:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:15,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,217 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,219 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-09-12 19:42:15,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496278293] [2024-09-12 19:42:15,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496278293] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:15,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:15,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:42:15,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392994495] [2024-09-12 19:42:15,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:15,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:15,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:15,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:15,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:15,226 INFO L87 Difference]: Start difference. First operand 380 states and 432 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:15,688 INFO L93 Difference]: Finished difference Result 380 states and 432 transitions. [2024-09-12 19:42:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:42:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 124 [2024-09-12 19:42:15,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:15,691 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:42:15,691 INFO L226 Difference]: Without dead ends: 373 [2024-09-12 19:42:15,691 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 19:42:15,692 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 79 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:15,693 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 69 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:42:15,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-09-12 19:42:15,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-09-12 19:42:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 321 states have (on average 1.233644859813084) internal successors, (396), 356 states have internal predecessors, (396), 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 19:42:15,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 418 transitions. [2024-09-12 19:42:15,879 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 418 transitions. Word has length 124 [2024-09-12 19:42:15,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:15,880 INFO L474 AbstractCegarLoop]: Abstraction has 373 states and 418 transitions. [2024-09-12 19:42:15,880 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:15,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:15,881 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 418 transitions. [2024-09-12 19:42:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-09-12 19:42:15,882 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:15,882 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-09-12 19:42:15,882 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:42:15,882 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:15,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:15,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1013461109, now seen corresponding path program 1 times [2024-09-12 19:42:15,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:15,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436608067] [2024-09-12 19:42:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:15,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,945 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:42:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,947 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:42:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,948 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-09-12 19:42:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,950 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:42:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-09-12 19:42:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:42:15,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:15,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436608067] [2024-09-12 19:42:15,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436608067] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:15,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:15,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:42:15,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444309452] [2024-09-12 19:42:15,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:15,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:42:15,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:15,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:42:15,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:42:15,956 INFO L87 Difference]: Start difference. First operand 373 states and 418 transitions. Second operand has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:16,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:16,300 INFO L93 Difference]: Finished difference Result 373 states and 418 transitions. [2024-09-12 19:42:16,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:42:16,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 125 [2024-09-12 19:42:16,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:16,303 INFO L225 Difference]: With dead ends: 373 [2024-09-12 19:42:16,303 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 19:42:16,303 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 19:42:16,304 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 110 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:16,304 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 51 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 19:42:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-09-12 19:42:16,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 321 states have (on average 1.2242990654205608) internal successors, (393), 355 states have internal predecessors, (393), 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 19:42:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 415 transitions. [2024-09-12 19:42:16,523 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 415 transitions. Word has length 125 [2024-09-12 19:42:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:16,524 INFO L474 AbstractCegarLoop]: Abstraction has 372 states and 415 transitions. [2024-09-12 19:42:16,524 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.0) internal successors, (96), 4 states have internal predecessors, (96), 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 19:42:16,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 415 transitions. [2024-09-12 19:42:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:42:16,525 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:16,525 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:16,525 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:42:16,525 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:16,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1021452397, now seen corresponding path program 1 times [2024-09-12 19:42:16,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:16,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125972560] [2024-09-12 19:42:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:16,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:16,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187993853] [2024-09-12 19:42:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:16,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:16,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:16,551 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 19:42:16,553 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 19:42:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:16,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:42:16,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:16,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:42:16,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:16,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125972560] [2024-09-12 19:42:16,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:16,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187993853] [2024-09-12 19:42:16,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187993853] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:16,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:16,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:42:16,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789066] [2024-09-12 19:42:16,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:16,933 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:42:16,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:16,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:42:16,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:16,934 INFO L87 Difference]: Start difference. First operand 372 states and 415 transitions. Second operand has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:42:17,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:17,600 INFO L93 Difference]: Finished difference Result 435 states and 471 transitions. [2024-09-12 19:42:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 127 [2024-09-12 19:42:17,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:17,603 INFO L225 Difference]: With dead ends: 435 [2024-09-12 19:42:17,603 INFO L226 Difference]: Without dead ends: 409 [2024-09-12 19:42:17,603 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:17,604 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 431 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:17,605 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 197 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:42:17,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-09-12 19:42:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 356. [2024-09-12 19:42:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 310 states have (on average 1.164516129032258) internal successors, (361), 340 states have internal predecessors, (361), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 381 transitions. [2024-09-12 19:42:17,786 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 381 transitions. Word has length 127 [2024-09-12 19:42:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:17,787 INFO L474 AbstractCegarLoop]: Abstraction has 356 states and 381 transitions. [2024-09-12 19:42:17,787 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-09-12 19:42:17,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 381 transitions. [2024-09-12 19:42:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-09-12 19:42:17,789 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:17,789 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:17,805 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 19:42:17,989 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:17,990 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:17,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash 720956271, now seen corresponding path program 1 times [2024-09-12 19:42:17,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:17,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053890706] [2024-09-12 19:42:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:18,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636997866] [2024-09-12 19:42:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:18,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:18,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:18,022 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 19:42:18,023 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 19:42:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:18,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:42:18,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:18,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:18,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:18,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053890706] [2024-09-12 19:42:18,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:18,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636997866] [2024-09-12 19:42:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636997866] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:18,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435613058] [2024-09-12 19:42:18,827 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:18,828 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:18,829 INFO L87 Difference]: Start difference. First operand 356 states and 381 transitions. Second operand has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:19,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:19,229 INFO L93 Difference]: Finished difference Result 356 states and 381 transitions. [2024-09-12 19:42:19,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:42:19,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2024-09-12 19:42:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:19,232 INFO L225 Difference]: With dead ends: 356 [2024-09-12 19:42:19,232 INFO L226 Difference]: Without dead ends: 342 [2024-09-12 19:42:19,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:42:19,233 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:19,233 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 76 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-09-12 19:42:19,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 339. [2024-09-12 19:42:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0977198697068404) internal successors, (337), 323 states have internal predecessors, (337), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 357 transitions. [2024-09-12 19:42:19,426 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 357 transitions. Word has length 150 [2024-09-12 19:42:19,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:19,427 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 357 transitions. [2024-09-12 19:42:19,427 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:19,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,427 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 357 transitions. [2024-09-12 19:42:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-09-12 19:42:19,432 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:19,432 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:19,449 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 19:42:19,632 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-09-12 19:42:19,633 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:19,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash 874808150, now seen corresponding path program 1 times [2024-09-12 19:42:19,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:19,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191460704] [2024-09-12 19:42:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:19,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387838488] [2024-09-12 19:42:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:19,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:19,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:19,653 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 19:42:19,655 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 19:42:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:19,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:42:19,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:20,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:20,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191460704] [2024-09-12 19:42:20,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387838488] [2024-09-12 19:42:20,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387838488] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:20,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:20,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:20,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104836325] [2024-09-12 19:42:20,577 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:20,577 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:20,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:20,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:20,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:20,578 INFO L87 Difference]: Start difference. First operand 339 states and 357 transitions. Second operand has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:20,960 INFO L93 Difference]: Finished difference Result 380 states and 399 transitions. [2024-09-12 19:42:20,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:20,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 151 [2024-09-12 19:42:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:20,963 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:42:20,963 INFO L226 Difference]: Without dead ends: 379 [2024-09-12 19:42:20,963 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:20,963 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 5 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:20,964 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 128 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:42:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-09-12 19:42:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2024-09-12 19:42:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 343 states have (on average 1.087463556851312) internal successors, (373), 359 states have internal predecessors, (373), 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 19:42:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 395 transitions. [2024-09-12 19:42:21,209 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 395 transitions. Word has length 151 [2024-09-12 19:42:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:21,210 INFO L474 AbstractCegarLoop]: Abstraction has 376 states and 395 transitions. [2024-09-12 19:42:21,210 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:21,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:21,211 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 395 transitions. [2024-09-12 19:42:21,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-09-12 19:42:21,212 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:21,212 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:21,229 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 19:42:21,416 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:21,417 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:21,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:21,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1236611356, now seen corresponding path program 1 times [2024-09-12 19:42:21,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:21,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201599397] [2024-09-12 19:42:21,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:21,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:21,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611304659] [2024-09-12 19:42:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:21,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:21,446 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 19:42:21,451 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 19:42:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:21,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:42:21,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:21,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 6 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:22,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:22,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201599397] [2024-09-12 19:42:22,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:22,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611304659] [2024-09-12 19:42:22,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611304659] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:22,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:22,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-09-12 19:42:22,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59920531] [2024-09-12 19:42:22,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:22,230 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:42:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:42:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:42:22,231 INFO L87 Difference]: Start difference. First operand 376 states and 395 transitions. Second operand has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:22,984 INFO L93 Difference]: Finished difference Result 383 states and 401 transitions. [2024-09-12 19:42:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:42:22,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 157 [2024-09-12 19:42:22,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:22,987 INFO L225 Difference]: With dead ends: 383 [2024-09-12 19:42:22,987 INFO L226 Difference]: Without dead ends: 339 [2024-09-12 19:42:22,987 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 299 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:42:22,988 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:22,988 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 292 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:42:22,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-09-12 19:42:23,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-09-12 19:42:23,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0944625407166124) internal successors, (336), 323 states have internal predecessors, (336), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:23,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 356 transitions. [2024-09-12 19:42:23,199 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 356 transitions. Word has length 157 [2024-09-12 19:42:23,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:23,199 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 356 transitions. [2024-09-12 19:42:23,199 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.357142857142858) internal successors, (257), 13 states have internal predecessors, (257), 7 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:23,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 356 transitions. [2024-09-12 19:42:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-09-12 19:42:23,201 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:23,202 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:23,219 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 19:42:23,402 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-09-12 19:42:23,403 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:23,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:23,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1699567650, now seen corresponding path program 1 times [2024-09-12 19:42:23,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:23,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099219449] [2024-09-12 19:42:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:23,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:23,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457288429] [2024-09-12 19:42:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:23,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:23,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:23,428 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 19:42:23,430 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 19:42:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:23,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:42:23,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:23,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099219449] [2024-09-12 19:42:23,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457288429] [2024-09-12 19:42:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457288429] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:42:23,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:42:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-09-12 19:42:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474387405] [2024-09-12 19:42:23,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:23,676 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:42:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:42:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:23,677 INFO L87 Difference]: Start difference. First operand 339 states and 356 transitions. Second operand has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:24,137 INFO L93 Difference]: Finished difference Result 401 states and 422 transitions. [2024-09-12 19:42:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:42:24,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 171 [2024-09-12 19:42:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:24,140 INFO L225 Difference]: With dead ends: 401 [2024-09-12 19:42:24,140 INFO L226 Difference]: Without dead ends: 398 [2024-09-12 19:42:24,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:42:24,140 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 162 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:24,141 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 95 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:42:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-09-12 19:42:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 339. [2024-09-12 19:42:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 307 states have (on average 1.0846905537459284) internal successors, (333), 323 states have internal predecessors, (333), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:24,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 353 transitions. [2024-09-12 19:42:24,319 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 353 transitions. Word has length 171 [2024-09-12 19:42:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:24,320 INFO L474 AbstractCegarLoop]: Abstraction has 339 states and 353 transitions. [2024-09-12 19:42:24,320 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:42:24,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:24,320 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 353 transitions. [2024-09-12 19:42:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-09-12 19:42:24,321 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:24,321 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:24,337 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-09-12 19:42:24,525 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:42:24,525 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:24,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1196943876, now seen corresponding path program 1 times [2024-09-12 19:42:24,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:24,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062819925] [2024-09-12 19:42:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:24,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:24,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267281479] [2024-09-12 19:42:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:24,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:24,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:24,553 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 19:42:24,554 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 19:42:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:24,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:42:24,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:24,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062819925] [2024-09-12 19:42:25,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267281479] [2024-09-12 19:42:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267281479] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:25,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:25,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-09-12 19:42:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055655342] [2024-09-12 19:42:25,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:25,067 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:42:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:25,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:42:25,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:42:25,068 INFO L87 Difference]: Start difference. First operand 339 states and 353 transitions. Second operand has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:25,749 INFO L93 Difference]: Finished difference Result 419 states and 441 transitions. [2024-09-12 19:42:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:42:25,749 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 173 [2024-09-12 19:42:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:25,751 INFO L225 Difference]: With dead ends: 419 [2024-09-12 19:42:25,751 INFO L226 Difference]: Without dead ends: 408 [2024-09-12 19:42:25,752 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:42:25,752 INFO L434 NwaCegarLoop]: 63 mSDtfsCounter, 429 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:25,752 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 254 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:42:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-09-12 19:42:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 326. [2024-09-12 19:42:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 301 states have (on average 1.0465116279069768) internal successors, (315), 310 states have internal predecessors, (315), 11 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:42:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 335 transitions. [2024-09-12 19:42:25,913 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 335 transitions. Word has length 173 [2024-09-12 19:42:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:25,914 INFO L474 AbstractCegarLoop]: Abstraction has 326 states and 335 transitions. [2024-09-12 19:42:25,914 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 10 states have internal predecessors, (294), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:25,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 335 transitions. [2024-09-12 19:42:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-09-12 19:42:25,915 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:25,915 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:25,929 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-09-12 19:42:26,116 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:26,116 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:26,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash -788165658, now seen corresponding path program 1 times [2024-09-12 19:42:26,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:26,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010058688] [2024-09-12 19:42:26,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:26,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693052507] [2024-09-12 19:42:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:26,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:26,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:26,140 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 19:42:26,141 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 19:42:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:42:26,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:42:26,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:26,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:42:26,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010058688] [2024-09-12 19:42:26,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693052507] [2024-09-12 19:42:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693052507] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:26,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:26,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-09-12 19:42:26,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962138082] [2024-09-12 19:42:26,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:26,904 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:42:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:42:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:42:26,906 INFO L87 Difference]: Start difference. First operand 326 states and 335 transitions. Second operand has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:28,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:28,424 INFO L93 Difference]: Finished difference Result 579 states and 614 transitions. [2024-09-12 19:42:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:42:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 175 [2024-09-12 19:42:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:28,428 INFO L225 Difference]: With dead ends: 579 [2024-09-12 19:42:28,428 INFO L226 Difference]: Without dead ends: 578 [2024-09-12 19:42:28,429 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=179, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:42:28,429 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 603 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:28,429 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 226 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-09-12 19:42:28,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-09-12 19:42:28,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 434. [2024-09-12 19:42:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 407 states have (on average 1.0614250614250613) internal successors, (432), 416 states have internal predecessors, (432), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:42:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 456 transitions. [2024-09-12 19:42:28,711 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 456 transitions. Word has length 175 [2024-09-12 19:42:28,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:28,711 INFO L474 AbstractCegarLoop]: Abstraction has 434 states and 456 transitions. [2024-09-12 19:42:28,711 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 22.923076923076923) internal successors, (298), 14 states have internal predecessors, (298), 7 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-09-12 19:42:28,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:28,712 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 456 transitions. [2024-09-12 19:42:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-09-12 19:42:28,713 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:28,713 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:28,725 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 19:42:28,913 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:28,913 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:28,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash -577930818, now seen corresponding path program 2 times [2024-09-12 19:42:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897114904] [2024-09-12 19:42:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:28,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460653894] [2024-09-12 19:42:28,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:28,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:28,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:28,938 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 19:42:28,940 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 19:42:28,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-12 19:42:28,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:28,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:42:28,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-09-12 19:42:29,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:42:29,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:29,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897114904] [2024-09-12 19:42:29,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:29,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460653894] [2024-09-12 19:42:29,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460653894] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:42:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:42:29,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:42:29,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163421910] [2024-09-12 19:42:29,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:42:29,614 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:42:29,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:29,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:42:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:29,615 INFO L87 Difference]: Start difference. First operand 434 states and 456 transitions. Second operand has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:42:29,979 INFO L93 Difference]: Finished difference Result 434 states and 456 transitions. [2024-09-12 19:42:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:42:29,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 204 [2024-09-12 19:42:29,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:42:29,984 INFO L225 Difference]: With dead ends: 434 [2024-09-12 19:42:29,984 INFO L226 Difference]: Without dead ends: 430 [2024-09-12 19:42:29,984 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:42:29,985 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 47 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:42:29,985 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 64 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:42:29,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-09-12 19:42:30,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 412. [2024-09-12 19:42:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 389 states have (on average 1.0488431876606683) internal successors, (408), 394 states have internal predecessors, (408), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:42:30,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 432 transitions. [2024-09-12 19:42:30,244 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 432 transitions. Word has length 204 [2024-09-12 19:42:30,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:42:30,244 INFO L474 AbstractCegarLoop]: Abstraction has 412 states and 432 transitions. [2024-09-12 19:42:30,244 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:42:30,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 432 transitions. [2024-09-12 19:42:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-09-12 19:42:30,246 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:42:30,246 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:42:30,260 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 19:42:30,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:42:30,447 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:42:30,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:42:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1267640399, now seen corresponding path program 2 times [2024-09-12 19:42:30,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:42:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609812196] [2024-09-12 19:42:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:42:30,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:42:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:42:30,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185262965] [2024-09-12 19:42:30,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:42:30,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:42:30,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:42:30,486 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 19:42:30,488 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 19:42:30,559 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:42:30,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:42:30,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:42:30,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:42:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 3 proven. 243 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:42:30,981 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:42:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 3 proven. 243 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:42:32,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:42:32,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609812196] [2024-09-12 19:42:32,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:42:32,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185262965] [2024-09-12 19:42:32,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185262965] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:42:32,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:42:32,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2024-09-12 19:42:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650940335] [2024-09-12 19:42:32,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:42:32,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:42:32,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:42:32,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:42:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:42:32,310 INFO L87 Difference]: Start difference. First operand 412 states and 432 transitions. Second operand has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 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 19:42:35,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:36,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:44,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:48,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:52,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:42:56,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:01,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:05,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:10,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:14,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:43:14,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:43:14,298 INFO L93 Difference]: Finished difference Result 703 states and 729 transitions. [2024-09-12 19:43:14,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-12 19:43:14,298 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 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 206 [2024-09-12 19:43:14,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:43:14,301 INFO L225 Difference]: With dead ends: 703 [2024-09-12 19:43:14,301 INFO L226 Difference]: Without dead ends: 701 [2024-09-12 19:43:14,302 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=285, Invalid=707, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:43:14,302 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 1234 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 60 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:43:14,302 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 368 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2554 Invalid, 8 Unknown, 0 Unchecked, 40.8s Time] [2024-09-12 19:43:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-09-12 19:43:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 492. [2024-09-12 19:43:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 468 states have (on average 1.047008547008547) internal successors, (490), 473 states have internal predecessors, (490), 14 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:43:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 516 transitions. [2024-09-12 19:43:14,671 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 516 transitions. Word has length 206 [2024-09-12 19:43:14,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:43:14,672 INFO L474 AbstractCegarLoop]: Abstraction has 492 states and 516 transitions. [2024-09-12 19:43:14,672 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.210526315789473) internal successors, (365), 20 states have internal predecessors, (365), 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 19:43:14,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:14,672 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 516 transitions. [2024-09-12 19:43:14,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-09-12 19:43:14,673 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:43:14,673 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:43:14,685 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 19:43:14,874 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:43:14,874 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:43:14,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1814779724, now seen corresponding path program 2 times [2024-09-12 19:43:14,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:43:14,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731610584] [2024-09-12 19:43:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:43:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:43:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053485977] [2024-09-12 19:43:14,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:43:14,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:43:14,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:43:14,901 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 19:43:14,902 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 19:43:14,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:43:14,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:43:14,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-12 19:43:14,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:43:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 133 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:43:15,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:43:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 7 proven. 133 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:43:16,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:43:16,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731610584] [2024-09-12 19:43:16,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:43:16,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053485977] [2024-09-12 19:43:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053485977] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:43:16,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:43:16,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2024-09-12 19:43:16,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185883047] [2024-09-12 19:43:16,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:43:16,215 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-12 19:43:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:43:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-12 19:43:16,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:43:16,216 INFO L87 Difference]: Start difference. First operand 492 states and 516 transitions. Second operand has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:43:18,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:43:18,034 INFO L93 Difference]: Finished difference Result 576 states and 601 transitions. [2024-09-12 19:43:18,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:43:18,034 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 210 [2024-09-12 19:43:18,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:43:18,037 INFO L225 Difference]: With dead ends: 576 [2024-09-12 19:43:18,037 INFO L226 Difference]: Without dead ends: 492 [2024-09-12 19:43:18,037 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1016, Unknown=0, NotChecked=0, Total=1190 [2024-09-12 19:43:18,038 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 59 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:43:18,038 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 401 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 19:43:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-09-12 19:43:18,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-09-12 19:43:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 468 states have (on average 1.0405982905982907) internal successors, (487), 473 states have internal predecessors, (487), 14 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:43:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 513 transitions. [2024-09-12 19:43:18,408 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 513 transitions. Word has length 210 [2024-09-12 19:43:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:43:18,408 INFO L474 AbstractCegarLoop]: Abstraction has 492 states and 513 transitions. [2024-09-12 19:43:18,408 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.0) internal successors, (360), 23 states have internal predecessors, (360), 9 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:43:18,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 513 transitions. [2024-09-12 19:43:18,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-09-12 19:43:18,410 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:43:18,410 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:43:18,425 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 19:43:18,610 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:43:18,611 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 82 more)] === [2024-09-12 19:43:18,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:43:18,611 INFO L85 PathProgramCache]: Analyzing trace with hash -158571727, now seen corresponding path program 1 times [2024-09-12 19:43:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:43:18,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351451146] [2024-09-12 19:43:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:43:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:43:18,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939752513] [2024-09-12 19:43:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:43:18,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:43:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:43:18,651 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 19:43:18,654 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 19:43:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:43:18,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:43:18,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:43:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 9 proven. 330 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:43:18,916 INFO L327 TraceCheckSpWp]: Computing backward predicates...