./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.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/fermat2-ll_valuebound10.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 6c4c876bf3d38b01f54a088b76131bc8275dc44ae3ac622f7c3187fe3c7bf156 --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 18:58:43,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:58:43,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:58:43,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:58:43,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:58:43,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:58:43,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:58:43,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:58:43,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:58:43,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:58:43,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:58:43,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:58:43,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:58:43,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:58:43,590 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:58:43,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:58:43,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:58:43,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:58:43,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:58:43,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:58:43,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:58:43,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:58:43,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:58:43,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:58:43,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:58:43,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:58:43,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:58:43,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:58:43,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:58:43,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:58:43,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:58:43,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:58:43,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c4c876bf3d38b01f54a088b76131bc8275dc44ae3ac622f7c3187fe3c7bf156 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:58:43,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:58:43,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:58:43,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:58:43,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:58:43,863 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:58:43,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.c [2024-09-12 18:58:45,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:58:45,254 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:58:45,254 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound10.c [2024-09-12 18:58:45,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/47fcd98be/c0d4b20d271e43ce877a36838276fedd/FLAGc05860257 [2024-09-12 18:58:45,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/47fcd98be/c0d4b20d271e43ce877a36838276fedd [2024-09-12 18:58:45,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:58:45,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:58:45,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:58:45,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:58:45,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:58:45,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c8fe4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45, skipping insertion in model container [2024-09-12 18:58:45,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:58:45,428 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/fermat2-ll_valuebound10.c[524,537] [2024-09-12 18:58:45,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:58:45,461 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:58:45,472 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/fermat2-ll_valuebound10.c[524,537] [2024-09-12 18:58:45,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:58:45,497 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:58:45,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45 WrapperNode [2024-09-12 18:58:45,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:58:45,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:58:45,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:58:45,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:58:45,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,519 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:58:45,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:58:45,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:58:45,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:58:45,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:58:45,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,558 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 18:58:45,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:58:45,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:58:45,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:58:45,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:58:45,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (1/1) ... [2024-09-12 18:58:45,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:58:45,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:45,605 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 18:58:45,606 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 18:58:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:58:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 18:58:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 18:58:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:58:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:58:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:58:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:58:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:58:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:58:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:58:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 18:58:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 18:58:45,687 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:58:45,688 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:58:46,016 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2024-09-12 18:58:46,016 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:58:46,040 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:58:46,040 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 18:58:46,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:58:46 BoogieIcfgContainer [2024-09-12 18:58:46,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:58:46,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:58:46,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:58:46,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:58:46,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:58:45" (1/3) ... [2024-09-12 18:58:46,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:58:46, skipping insertion in model container [2024-09-12 18:58:46,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:58:45" (2/3) ... [2024-09-12 18:58:46,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a5153f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:58:46, skipping insertion in model container [2024-09-12 18:58:46,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:58:46" (3/3) ... [2024-09-12 18:58:46,050 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound10.c [2024-09-12 18:58:46,062 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:58:46,062 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-09-12 18:58:46,113 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:58:46,118 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;@2a9b3700, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:58:46,118 INFO L337 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-09-12 18:58:46,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 128 states have internal predecessors, (134), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 18:58:46,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:58:46,136 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,137 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,138 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:46,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1058651091, now seen corresponding path program 1 times [2024-09-12 18:58:46,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:46,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166720261] [2024-09-12 18:58:46,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,261 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,265 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 18:58:46,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:46,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166720261] [2024-09-12 18:58:46,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166720261] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:46,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:46,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195180434] [2024-09-12 18:58:46,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:46,272 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 18:58:46,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:46,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 18:58:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 18:58:46,295 INFO L87 Difference]: Start difference. First operand has 141 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 128 states have internal predecessors, (134), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 18:58:46,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,335 INFO L93 Difference]: Finished difference Result 270 states and 299 transitions. [2024-09-12 18:58:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 18:58:46,337 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 17 [2024-09-12 18:58:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,344 INFO L225 Difference]: With dead ends: 270 [2024-09-12 18:58:46,344 INFO L226 Difference]: Without dead ends: 131 [2024-09-12 18:58:46,347 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 18:58:46,349 INFO L434 NwaCegarLoop]: 138 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, 138 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 18:58:46,350 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:58:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-09-12 18:58:46,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-09-12 18:58:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 120 states have internal predecessors, (122), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2024-09-12 18:58:46,390 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 17 [2024-09-12 18:58:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:46,391 INFO L474 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2024-09-12 18:58:46,391 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 18:58:46,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2024-09-12 18:58:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 18:58:46,393 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,393 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,393 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:58:46,393 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:46,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,394 INFO L85 PathProgramCache]: Analyzing trace with hash 665683663, now seen corresponding path program 1 times [2024-09-12 18:58:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:46,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760897335] [2024-09-12 18:58:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,488 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 18:58:46,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760897335] [2024-09-12 18:58:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760897335] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:46,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:46,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:46,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760351125] [2024-09-12 18:58:46,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:46,491 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:58:46,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:58:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:58:46,495 INFO L87 Difference]: Start difference. First operand 131 states and 136 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:58:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,561 INFO L93 Difference]: Finished difference Result 131 states and 136 transitions. [2024-09-12 18:58:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:58:46,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2024-09-12 18:58:46,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,563 INFO L225 Difference]: With dead ends: 131 [2024-09-12 18:58:46,563 INFO L226 Difference]: Without dead ends: 127 [2024-09-12 18:58:46,564 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 18:58:46,565 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 13 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:46,568 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 213 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:58:46,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-09-12 18:58:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-09-12 18:58:46,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 69 states have (on average 1.710144927536232) internal successors, (118), 116 states have internal predecessors, (118), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2024-09-12 18:58:46,584 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 17 [2024-09-12 18:58:46,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:46,587 INFO L474 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2024-09-12 18:58:46,588 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:58:46,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2024-09-12 18:58:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:58:46,588 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,589 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,589 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:58:46,589 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:46,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash -838642877, now seen corresponding path program 1 times [2024-09-12 18:58:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:46,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638903685] [2024-09-12 18:58:46,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,620 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,635 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 18:58:46,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:46,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638903685] [2024-09-12 18:58:46,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638903685] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:46,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:46,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690750104] [2024-09-12 18:58:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:46,637 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:58:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:46,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:58:46,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:58:46,638 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:58:46,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,690 INFO L93 Difference]: Finished difference Result 127 states and 132 transitions. [2024-09-12 18:58:46,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:58:46,691 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 18 [2024-09-12 18:58:46,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,692 INFO L225 Difference]: With dead ends: 127 [2024-09-12 18:58:46,692 INFO L226 Difference]: Without dead ends: 123 [2024-09-12 18:58:46,693 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 18:58:46,694 INFO L434 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:46,696 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 213 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:58:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-09-12 18:58:46,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-09-12 18:58:46,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 112 states have internal predecessors, (114), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:46,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 128 transitions. [2024-09-12 18:58:46,714 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 128 transitions. Word has length 18 [2024-09-12 18:58:46,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:46,714 INFO L474 AbstractCegarLoop]: Abstraction has 123 states and 128 transitions. [2024-09-12 18:58:46,714 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), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 18:58:46,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 128 transitions. [2024-09-12 18:58:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:58:46,715 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,715 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,715 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:58:46,715 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:46,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1444254009, now seen corresponding path program 1 times [2024-09-12 18:58:46,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:46,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259722682] [2024-09-12 18:58:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:46,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236183476] [2024-09-12 18:58:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:46,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:46,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:46,747 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 18:58:46,748 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 18:58:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:46,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:58:46,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-12 18:58:46,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:46,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:46,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259722682] [2024-09-12 18:58:46,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:46,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236183476] [2024-09-12 18:58:46,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236183476] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:46,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:46,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:58:46,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935397333] [2024-09-12 18:58:46,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:46,871 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:46,872 INFO L87 Difference]: Start difference. First operand 123 states and 128 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:58:46,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:46,968 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2024-09-12 18:58:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-09-12 18:58:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:46,969 INFO L225 Difference]: With dead ends: 123 [2024-09-12 18:58:46,969 INFO L226 Difference]: Without dead ends: 121 [2024-09-12 18:58:46,970 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:46,970 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 8 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:46,971 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 403 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:46,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-09-12 18:58:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-09-12 18:58:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 69 states have (on average 1.6231884057971016) internal successors, (112), 110 states have internal predecessors, (112), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2024-09-12 18:58:46,978 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 22 [2024-09-12 18:58:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:46,978 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2024-09-12 18:58:46,979 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-09-12 18:58:46,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2024-09-12 18:58:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 18:58:46,980 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:46,980 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:46,992 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 18:58:47,182 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:47,183 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:47,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash 818189849, now seen corresponding path program 1 times [2024-09-12 18:58:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:47,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434383714] [2024-09-12 18:58:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:47,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661040883] [2024-09-12 18:58:47,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:47,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:47,214 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 18:58:47,216 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 18:58:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 18:58:47,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:47,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434383714] [2024-09-12 18:58:47,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661040883] [2024-09-12 18:58:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661040883] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:47,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:47,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-09-12 18:58:47,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471958234] [2024-09-12 18:58:47,415 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:47,415 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:47,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:47,416 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:58:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:47,483 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2024-09-12 18:58:47,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:47,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-09-12 18:58:47,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:47,486 INFO L225 Difference]: With dead ends: 121 [2024-09-12 18:58:47,487 INFO L226 Difference]: Without dead ends: 118 [2024-09-12 18:58:47,487 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:47,487 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 81 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:47,488 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 317 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:47,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-09-12 18:58:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-09-12 18:58:47,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 107 states have internal predecessors, (109), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2024-09-12 18:58:47,514 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 39 [2024-09-12 18:58:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:47,515 INFO L474 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2024-09-12 18:58:47,515 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 18:58:47,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:47,515 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2024-09-12 18:58:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 18:58:47,517 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:47,517 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:47,534 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:47,721 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:47,722 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:47,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -405918381, now seen corresponding path program 1 times [2024-09-12 18:58:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:47,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024332827] [2024-09-12 18:58:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,893 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,915 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:47,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024332827] [2024-09-12 18:58:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024332827] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789068904] [2024-09-12 18:58:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:47,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:47,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:47,938 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 18:58:47,939 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 18:58:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:47,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:58:47,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:48,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:48,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789068904] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:48,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:58:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 18:58:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425575734] [2024-09-12 18:58:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:48,060 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:58:48,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:58:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:58:48,062 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:48,174 INFO L93 Difference]: Finished difference Result 118 states and 123 transitions. [2024-09-12 18:58:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:58:48,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-09-12 18:58:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:48,177 INFO L225 Difference]: With dead ends: 118 [2024-09-12 18:58:48,177 INFO L226 Difference]: Without dead ends: 117 [2024-09-12 18:58:48,177 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-09-12 18:58:48,178 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 80 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:48,180 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 413 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-09-12 18:58:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-09-12 18:58:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 69 states have (on average 1.565217391304348) internal successors, (108), 106 states have internal predecessors, (108), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 122 transitions. [2024-09-12 18:58:48,206 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 122 transitions. Word has length 40 [2024-09-12 18:58:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:48,206 INFO L474 AbstractCegarLoop]: Abstraction has 117 states and 122 transitions. [2024-09-12 18:58:48,207 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 122 transitions. [2024-09-12 18:58:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 18:58:48,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:48,208 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:48,220 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:48,411 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-12 18:58:48,411 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:48,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 754462517, now seen corresponding path program 1 times [2024-09-12 18:58:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:48,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372728372] [2024-09-12 18:58:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:48,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:48,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:48,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372728372] [2024-09-12 18:58:48,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372728372] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:48,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:48,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:48,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409291686] [2024-09-12 18:58:48,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:48,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:58:48,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:48,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:58:48,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:58:48,472 INFO L87 Difference]: Start difference. First operand 117 states and 122 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:48,525 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions. [2024-09-12 18:58:48,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:58:48,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-09-12 18:58:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:48,526 INFO L225 Difference]: With dead ends: 120 [2024-09-12 18:58:48,527 INFO L226 Difference]: Without dead ends: 119 [2024-09-12 18:58:48,528 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 18:58:48,528 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 35 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:48,528 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 171 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:58:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-09-12 18:58:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-09-12 18:58:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 71 states have (on average 1.5492957746478873) internal successors, (110), 108 states have internal predecessors, (110), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 124 transitions. [2024-09-12 18:58:48,552 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 124 transitions. Word has length 42 [2024-09-12 18:58:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:48,552 INFO L474 AbstractCegarLoop]: Abstraction has 119 states and 124 transitions. [2024-09-12 18:58:48,552 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2024-09-12 18:58:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 18:58:48,553 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:48,553 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:48,553 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:58:48,553 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:48,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1913501636, now seen corresponding path program 1 times [2024-09-12 18:58:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:48,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123954357] [2024-09-12 18:58:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:48,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:48,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:48,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:48,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123954357] [2024-09-12 18:58:48,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123954357] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:48,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:48,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:58:48,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239924333] [2024-09-12 18:58:48,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:48,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:58:48,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:48,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:58:48,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:58:48,604 INFO L87 Difference]: Start difference. First operand 119 states and 124 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:48,671 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2024-09-12 18:58:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-09-12 18:58:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:48,672 INFO L225 Difference]: With dead ends: 121 [2024-09-12 18:58:48,673 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 18:58:48,673 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 18:58:48,673 INFO L434 NwaCegarLoop]: 89 mSDtfsCounter, 45 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:48,673 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 230 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 18:58:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-09-12 18:58:48,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 72 states have (on average 1.5416666666666667) internal successors, (111), 109 states have internal predecessors, (111), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2024-09-12 18:58:48,685 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 43 [2024-09-12 18:58:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:48,685 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2024-09-12 18:58:48,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2024-09-12 18:58:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-09-12 18:58:48,686 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:48,686 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:48,686 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:58:48,686 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:48,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,686 INFO L85 PathProgramCache]: Analyzing trace with hash -810991337, now seen corresponding path program 1 times [2024-09-12 18:58:48,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:48,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324844731] [2024-09-12 18:58:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:48,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625404] [2024-09-12 18:58:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:48,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:48,698 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 18:58:48,699 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 18:58:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:48,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-09-12 18:58:48,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:48,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:48,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:48,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324844731] [2024-09-12 18:58:48,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:48,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625404] [2024-09-12 18:58:48,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625404] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:48,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:48,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:48,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433890523] [2024-09-12 18:58:48,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:48,757 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:58:48,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:48,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:58:48,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:58:48,758 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:48,823 INFO L93 Difference]: Finished difference Result 156 states and 169 transitions. [2024-09-12 18:58:48,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:58:48,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2024-09-12 18:58:48,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:48,825 INFO L225 Difference]: With dead ends: 156 [2024-09-12 18:58:48,826 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 18:58:48,826 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 18:58:48,827 INFO L434 NwaCegarLoop]: 104 mSDtfsCounter, 33 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:48,827 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 200 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:58:48,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 18:58:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 121. [2024-09-12 18:58:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 110 states have internal predecessors, (112), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 126 transitions. [2024-09-12 18:58:48,848 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 126 transitions. Word has length 44 [2024-09-12 18:58:48,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:48,849 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 126 transitions. [2024-09-12 18:58:48,849 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:48,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 126 transitions. [2024-09-12 18:58:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:58:48,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:48,850 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:48,863 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 18:58:49,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:49,055 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:49,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash 629072422, now seen corresponding path program 1 times [2024-09-12 18:58:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:49,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936902623] [2024-09-12 18:58:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:49,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,136 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,171 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:49,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936902623] [2024-09-12 18:58:49,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936902623] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:49,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371915630] [2024-09-12 18:58:49,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:49,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:49,178 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 18:58:49,181 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 18:58:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:49,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:58:49,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:49,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:49,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371915630] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:49,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:49,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-09-12 18:58:49,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391590214] [2024-09-12 18:58:49,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:49,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-12 18:58:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-12 18:58:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:58:49,557 INFO L87 Difference]: Start difference. First operand 121 states and 126 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:58:53,773 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 [0] [2024-09-12 18:58:53,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:53,837 INFO L93 Difference]: Finished difference Result 156 states and 168 transitions. [2024-09-12 18:58:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 18:58:53,838 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 45 [2024-09-12 18:58:53,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:53,839 INFO L225 Difference]: With dead ends: 156 [2024-09-12 18:58:53,839 INFO L226 Difference]: Without dead ends: 155 [2024-09-12 18:58:53,839 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-09-12 18:58:53,840 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 125 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:53,840 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 694 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-09-12 18:58:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-09-12 18:58:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 122. [2024-09-12 18:58:53,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 74 states have (on average 1.527027027027027) internal successors, (113), 111 states have internal predecessors, (113), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 18:58:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 127 transitions. [2024-09-12 18:58:53,861 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 127 transitions. Word has length 45 [2024-09-12 18:58:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:53,861 INFO L474 AbstractCegarLoop]: Abstraction has 122 states and 127 transitions. [2024-09-12 18:58:53,861 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 6 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-09-12 18:58:53,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 127 transitions. [2024-09-12 18:58:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 18:58:53,862 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:53,862 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:53,874 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:58:54,062 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:58:54,063 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:54,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:54,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1051788152, now seen corresponding path program 1 times [2024-09-12 18:58:54,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:54,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643691110] [2024-09-12 18:58:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:54,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191594904] [2024-09-12 18:58:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:54,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:54,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:54,074 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 18:58:54,075 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 18:58:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:54,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 18:58:54,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:54,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 18:58:54,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:54,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643691110] [2024-09-12 18:58:54,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:54,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191594904] [2024-09-12 18:58:54,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191594904] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:54,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:58:54,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-09-12 18:58:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960659039] [2024-09-12 18:58:54,353 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:54,353 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-12 18:58:54,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:54,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-12 18:58:54,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:58:54,354 INFO L87 Difference]: Start difference. First operand 122 states and 127 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:54,741 INFO L93 Difference]: Finished difference Result 199 states and 225 transitions. [2024-09-12 18:58:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 18:58:54,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 47 [2024-09-12 18:58:54,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:54,743 INFO L225 Difference]: With dead ends: 199 [2024-09-12 18:58:54,743 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 18:58:54,744 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:58:54,744 INFO L434 NwaCegarLoop]: 57 mSDtfsCounter, 166 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:54,745 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 384 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 18:58:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 18:58:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 166. [2024-09-12 18:58:54,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 126 states have (on average 1.4603174603174602) internal successors, (184), 154 states have internal predecessors, (184), 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 18:58:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2024-09-12 18:58:54,792 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 47 [2024-09-12 18:58:54,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:54,792 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2024-09-12 18:58:54,792 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-09-12 18:58:54,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2024-09-12 18:58:54,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 18:58:54,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:54,793 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:54,808 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 18:58:54,993 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:58:54,994 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:54,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:54,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1451096342, now seen corresponding path program 1 times [2024-09-12 18:58:54,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:54,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672986089] [2024-09-12 18:58:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:55,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243948613] [2024-09-12 18:58:55,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:55,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:55,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:55,005 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 18:58:55,006 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 18:58:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:55,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 18:58:55,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:55,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:55,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:55,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672986089] [2024-09-12 18:58:55,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:55,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243948613] [2024-09-12 18:58:55,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243948613] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:55,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:55,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 18:58:55,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964573654] [2024-09-12 18:58:55,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:55,057 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 18:58:55,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:55,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 18:58:55,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 18:58:55,058 INFO L87 Difference]: Start difference. First operand 166 states and 200 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:55,200 INFO L93 Difference]: Finished difference Result 282 states and 350 transitions. [2024-09-12 18:58:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 18:58:55,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2024-09-12 18:58:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:55,202 INFO L225 Difference]: With dead ends: 282 [2024-09-12 18:58:55,203 INFO L226 Difference]: Without dead ends: 268 [2024-09-12 18:58:55,203 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 18:58:55,203 INFO L434 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:55,203 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 148 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:55,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-09-12 18:58:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 258. [2024-09-12 18:58:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.3796296296296295) internal successors, (298), 244 states have internal predecessors, (298), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 18:58:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 318 transitions. [2024-09-12 18:58:55,279 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 318 transitions. Word has length 49 [2024-09-12 18:58:55,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:55,280 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 318 transitions. [2024-09-12 18:58:55,280 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:55,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:55,280 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 318 transitions. [2024-09-12 18:58:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 18:58:55,281 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:55,281 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:55,292 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 18:58:55,484 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:55,485 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:55,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:55,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2100462784, now seen corresponding path program 1 times [2024-09-12 18:58:55,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:55,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029979080] [2024-09-12 18:58:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 18:58:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406342318] [2024-09-12 18:58:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:55,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:55,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:55,496 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 18:58:55,497 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 18:58:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:55,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:58:55,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:55,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:58:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029979080] [2024-09-12 18:58:55,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 18:58:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406342318] [2024-09-12 18:58:55,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406342318] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:55,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:55,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:58:55,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991191950] [2024-09-12 18:58:55,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:55,734 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 18:58:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:55,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 18:58:55,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:55,734 INFO L87 Difference]: Start difference. First operand 258 states and 318 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:56,008 INFO L93 Difference]: Finished difference Result 264 states and 323 transitions. [2024-09-12 18:58:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 18:58:56,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 63 [2024-09-12 18:58:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:56,009 INFO L225 Difference]: With dead ends: 264 [2024-09-12 18:58:56,009 INFO L226 Difference]: Without dead ends: 262 [2024-09-12 18:58:56,010 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:56,010 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 8 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:56,011 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 280 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:58:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-09-12 18:58:56,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2024-09-12 18:58:56,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 219 states have (on average 1.3744292237442923) internal successors, (301), 247 states have internal predecessors, (301), 11 states have call successors, (11), 5 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 18:58:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 321 transitions. [2024-09-12 18:58:56,080 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 321 transitions. Word has length 63 [2024-09-12 18:58:56,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:56,080 INFO L474 AbstractCegarLoop]: Abstraction has 262 states and 321 transitions. [2024-09-12 18:58:56,081 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-09-12 18:58:56,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 321 transitions. [2024-09-12 18:58:56,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:58:56,083 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:56,083 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:56,096 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 18:58:56,284 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:56,284 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:56,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -335214196, now seen corresponding path program 1 times [2024-09-12 18:58:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:56,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497340418] [2024-09-12 18:58:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:56,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497340418] [2024-09-12 18:58:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497340418] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:58:56,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688263403] [2024-09-12 18:58:56,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:56,347 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:58:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:56,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:58:56,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:58:56,348 INFO L87 Difference]: Start difference. First operand 262 states and 321 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:56,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:56,515 INFO L93 Difference]: Finished difference Result 273 states and 325 transitions. [2024-09-12 18:58:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:56,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-09-12 18:58:56,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:56,517 INFO L225 Difference]: With dead ends: 273 [2024-09-12 18:58:56,517 INFO L226 Difference]: Without dead ends: 272 [2024-09-12 18:58:56,518 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 18:58:56,518 INFO L434 NwaCegarLoop]: 87 mSDtfsCounter, 32 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:56,518 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 197 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-09-12 18:58:56,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2024-09-12 18:58:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 219 states have (on average 1.365296803652968) internal successors, (299), 247 states have internal predecessors, (299), 11 states have call successors, (11), 5 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 18:58:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 319 transitions. [2024-09-12 18:58:56,582 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 319 transitions. Word has length 67 [2024-09-12 18:58:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:56,582 INFO L474 AbstractCegarLoop]: Abstraction has 262 states and 319 transitions. [2024-09-12 18:58:56,582 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:56,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 319 transitions. [2024-09-12 18:58:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 18:58:56,583 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:56,583 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:56,584 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-12 18:58:56,584 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:56,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash -335213876, now seen corresponding path program 1 times [2024-09-12 18:58:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:56,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266541085] [2024-09-12 18:58:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:56,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,626 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,634 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:56,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266541085] [2024-09-12 18:58:56,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266541085] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:56,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:56,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:58:56,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257692500] [2024-09-12 18:58:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:56,637 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:56,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:56,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:56,638 INFO L87 Difference]: Start difference. First operand 262 states and 319 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 18:58:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:56,789 INFO L93 Difference]: Finished difference Result 262 states and 319 transitions. [2024-09-12 18:58:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 67 [2024-09-12 18:58:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:56,790 INFO L225 Difference]: With dead ends: 262 [2024-09-12 18:58:56,791 INFO L226 Difference]: Without dead ends: 261 [2024-09-12 18:58:56,791 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:58:56,791 INFO L434 NwaCegarLoop]: 75 mSDtfsCounter, 102 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:56,791 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 200 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-09-12 18:58:56,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-09-12 18:58:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 219 states have (on average 1.3470319634703196) internal successors, (295), 246 states have internal predecessors, (295), 11 states have call successors, (11), 5 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 18:58:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 315 transitions. [2024-09-12 18:58:56,848 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 315 transitions. Word has length 67 [2024-09-12 18:58:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:56,848 INFO L474 AbstractCegarLoop]: Abstraction has 261 states and 315 transitions. [2024-09-12 18:58:56,848 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 18:58:56,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 315 transitions. [2024-09-12 18:58:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:58:56,849 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:56,849 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:56,849 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-12 18:58:56,849 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:56,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:56,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1801705350, now seen corresponding path program 1 times [2024-09-12 18:58:56,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:56,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977052852] [2024-09-12 18:58:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:56,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,913 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:56,924 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:56,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:56,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977052852] [2024-09-12 18:58:56,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977052852] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:56,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:56,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:58:56,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277602364] [2024-09-12 18:58:56,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:56,925 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:56,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:56,925 INFO L87 Difference]: Start difference. First operand 261 states and 315 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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 18:58:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:57,133 INFO L93 Difference]: Finished difference Result 267 states and 319 transitions. [2024-09-12 18:58:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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 68 [2024-09-12 18:58:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:57,135 INFO L225 Difference]: With dead ends: 267 [2024-09-12 18:58:57,135 INFO L226 Difference]: Without dead ends: 266 [2024-09-12 18:58:57,136 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:57,137 INFO L434 NwaCegarLoop]: 64 mSDtfsCounter, 166 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:57,137 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 156 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:57,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-09-12 18:58:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2024-09-12 18:58:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 219 states have (on average 1.3378995433789955) internal successors, (293), 246 states have internal predecessors, (293), 11 states have call successors, (11), 5 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 18:58:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 313 transitions. [2024-09-12 18:58:57,192 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 313 transitions. Word has length 68 [2024-09-12 18:58:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:57,193 INFO L474 AbstractCegarLoop]: Abstraction has 261 states and 313 transitions. [2024-09-12 18:58:57,193 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 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 18:58:57,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 313 transitions. [2024-09-12 18:58:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-09-12 18:58:57,193 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:57,193 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:57,193 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-12 18:58:57,194 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:57,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1801695420, now seen corresponding path program 1 times [2024-09-12 18:58:57,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:57,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513408385] [2024-09-12 18:58:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:57,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,237 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,241 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,244 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,245 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,246 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513408385] [2024-09-12 18:58:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513408385] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:57,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:58:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269753926] [2024-09-12 18:58:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:57,249 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:58:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:58:57,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:58:57,250 INFO L87 Difference]: Start difference. First operand 261 states and 313 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:57,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:57,417 INFO L93 Difference]: Finished difference Result 272 states and 324 transitions. [2024-09-12 18:58:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:58:57,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-09-12 18:58:57,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:57,418 INFO L225 Difference]: With dead ends: 272 [2024-09-12 18:58:57,418 INFO L226 Difference]: Without dead ends: 271 [2024-09-12 18:58:57,419 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 18:58:57,419 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 51 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:57,419 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 183 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-09-12 18:58:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 260. [2024-09-12 18:58:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 219 states have (on average 1.3196347031963471) internal successors, (289), 245 states have internal predecessors, (289), 11 states have call successors, (11), 5 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 18:58:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 309 transitions. [2024-09-12 18:58:57,473 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 309 transitions. Word has length 68 [2024-09-12 18:58:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:57,474 INFO L474 AbstractCegarLoop]: Abstraction has 260 states and 309 transitions. [2024-09-12 18:58:57,474 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:57,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 309 transitions. [2024-09-12 18:58:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:58:57,474 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:57,475 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:57,475 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-12 18:58:57,475 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:57,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash 557792926, now seen corresponding path program 1 times [2024-09-12 18:58:57,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:57,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30036251] [2024-09-12 18:58:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:57,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:57,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30036251] [2024-09-12 18:58:57,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30036251] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:57,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631557797] [2024-09-12 18:58:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:57,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:57,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:57,563 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 18:58:57,564 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 18:58:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:57,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:57,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:58:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:57,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:58:57,811 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:57,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631557797] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:58:57,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:58:57,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-09-12 18:58:57,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628506415] [2024-09-12 18:58:57,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:58:57,812 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:58:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:58:57,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 18:58:57,813 INFO L87 Difference]: Start difference. First operand 260 states and 309 transitions. Second operand has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 14 states have internal predecessors, (125), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:58:58,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:58,331 INFO L93 Difference]: Finished difference Result 331 states and 403 transitions. [2024-09-12 18:58:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 18:58:58,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 14 states have internal predecessors, (125), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 72 [2024-09-12 18:58:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:58,333 INFO L225 Difference]: With dead ends: 331 [2024-09-12 18:58:58,333 INFO L226 Difference]: Without dead ends: 329 [2024-09-12 18:58:58,333 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2024-09-12 18:58:58,334 INFO L434 NwaCegarLoop]: 55 mSDtfsCounter, 406 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:58,334 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 366 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:58:58,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-09-12 18:58:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 270. [2024-09-12 18:58:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 229 states have (on average 1.3100436681222707) internal successors, (300), 255 states have internal predecessors, (300), 11 states have call successors, (11), 5 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 18:58:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 320 transitions. [2024-09-12 18:58:58,393 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 320 transitions. Word has length 72 [2024-09-12 18:58:58,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:58,393 INFO L474 AbstractCegarLoop]: Abstraction has 270 states and 320 transitions. [2024-09-12 18:58:58,393 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 14 states have internal predecessors, (125), 6 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-09-12 18:58:58,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 320 transitions. [2024-09-12 18:58:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 18:58:58,394 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:58,394 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:58,406 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 18:58:58,594 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:58:58,595 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:58,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1138729384, now seen corresponding path program 1 times [2024-09-12 18:58:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:58,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472578270] [2024-09-12 18:58:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:58,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:58,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472578270] [2024-09-12 18:58:58,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472578270] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:58:58,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:58:58,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:58:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356529153] [2024-09-12 18:58:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:58:58,646 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:58:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:58:58,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:58:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:58:58,647 INFO L87 Difference]: Start difference. First operand 270 states and 320 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:58:58,797 INFO L93 Difference]: Finished difference Result 272 states and 324 transitions. [2024-09-12 18:58:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:58:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2024-09-12 18:58:58,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:58:58,799 INFO L225 Difference]: With dead ends: 272 [2024-09-12 18:58:58,799 INFO L226 Difference]: Without dead ends: 271 [2024-09-12 18:58:58,799 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:58:58,799 INFO L434 NwaCegarLoop]: 80 mSDtfsCounter, 60 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:58:58,800 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 189 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:58:58,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-09-12 18:58:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 267. [2024-09-12 18:58:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 227 states have (on average 1.2951541850220265) internal successors, (294), 252 states have internal predecessors, (294), 11 states have call successors, (11), 5 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 18:58:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 314 transitions. [2024-09-12 18:58:58,857 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 314 transitions. Word has length 72 [2024-09-12 18:58:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:58:58,857 INFO L474 AbstractCegarLoop]: Abstraction has 267 states and 314 transitions. [2024-09-12 18:58:58,857 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 18:58:58,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 314 transitions. [2024-09-12 18:58:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 18:58:58,858 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:58:58,858 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:58:58,858 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 18:58:58,859 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 18:58:58,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:58:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash 111711611, now seen corresponding path program 1 times [2024-09-12 18:58:58,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:58:58,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003776128] [2024-09-12 18:58:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:58:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,903 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:58:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 18:58:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 18:58:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 18:58:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 18:58:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,909 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 18:58:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:58:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:58:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003776128] [2024-09-12 18:58:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003776128] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:58:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493533845] [2024-09-12 18:58:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:58:58,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:58:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:58:58,913 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 18:58:58,918 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 18:58:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:58:58,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:58:58,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:59:13,961 WARN L876 $PredicateComparison]: unable to prove that (exists ((v_main_~R~0_45 Int)) (let ((.cse0 (* v_main_~R~0_45 v_main_~R~0_45))) (and (<= .cse0 9223372036854775807) (<= (+ c_main_~A~0 c_main_~r~0 1) .cse0)))) is different from true [2024-09-12 18:59:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 3 not checked. [2024-09-12 18:59:13,980 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:59:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 18:59:18,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493533845] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:59:18,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:59:18,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-09-12 18:59:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312396396] [2024-09-12 18:59:18,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:59:18,066 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 18:59:18,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:59:18,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 18:59:18,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=105, Unknown=7, NotChecked=22, Total=182 [2024-09-12 18:59:18,066 INFO L87 Difference]: Start difference. First operand 267 states and 314 transitions. Second operand has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 18:59:21,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:22,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:23,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:24,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:28,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:30,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:35,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:46,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 18:59:59,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:03,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:05,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:06,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:08,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:12,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:13,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:15,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:19,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:23,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:24,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:29,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:34,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:38,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:42,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:43,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:45,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:49,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:50,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:54,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:55,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:00:59,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:03,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:07,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:11,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:12,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:16,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:20,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:24,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:26,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:27,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:29,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:30,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:31,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:35,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:01:36,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:36,238 INFO L93 Difference]: Finished difference Result 315 states and 368 transitions. [2024-09-12 19:01:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:01:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 73 [2024-09-12 19:01:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:36,240 INFO L225 Difference]: With dead ends: 315 [2024-09-12 19:01:36,240 INFO L226 Difference]: Without dead ends: 310 [2024-09-12 19:01:36,240 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=132, Invalid=281, Unknown=11, NotChecked=38, Total=462 [2024-09-12 19:01:36,240 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 188 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 24 mSolverCounterUnsat, 54 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 54 IncrementalHoareTripleChecker+Unknown, 208 IncrementalHoareTripleChecker+Unchecked, 123.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:36,240 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 403 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 593 Invalid, 54 Unknown, 208 Unchecked, 123.9s Time] [2024-09-12 19:01:36,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-09-12 19:01:36,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2024-09-12 19:01:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 255 states have (on average 1.2745098039215685) internal successors, (325), 277 states have internal predecessors, (325), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:01:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 347 transitions. [2024-09-12 19:01:36,315 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 347 transitions. Word has length 73 [2024-09-12 19:01:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:36,315 INFO L474 AbstractCegarLoop]: Abstraction has 293 states and 347 transitions. [2024-09-12 19:01:36,316 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.0) internal successors, (117), 14 states have internal predecessors, (117), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-09-12 19:01:36,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 347 transitions. [2024-09-12 19:01:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-09-12 19:01:36,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:36,316 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:01:36,329 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:01:36,517 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:36,517 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:36,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash 940872625, now seen corresponding path program 1 times [2024-09-12 19:01:36,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:36,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210882482] [2024-09-12 19:01:36,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:36,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:01:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:01:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:01:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:01:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:01:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:01:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:36,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210882482] [2024-09-12 19:01:36,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210882482] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:01:36,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594307920] [2024-09-12 19:01:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:36,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:36,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:36,577 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 19:01:36,578 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 19:01:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:36,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:01:36,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:36,749 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:36,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:36,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594307920] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:01:36,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:01:36,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-09-12 19:01:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38700748] [2024-09-12 19:01:36,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:36,854 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:01:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:01:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:01:36,855 INFO L87 Difference]: Start difference. First operand 293 states and 347 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 19:01:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:37,204 INFO L93 Difference]: Finished difference Result 322 states and 382 transitions. [2024-09-12 19:01:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:01:37,204 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 73 [2024-09-12 19:01:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:37,206 INFO L225 Difference]: With dead ends: 322 [2024-09-12 19:01:37,206 INFO L226 Difference]: Without dead ends: 320 [2024-09-12 19:01:37,209 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:01:37,209 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 245 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:37,209 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 257 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:01:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-09-12 19:01:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 294. [2024-09-12 19:01:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 257 states have (on average 1.2490272373540856) internal successors, (321), 278 states have internal predecessors, (321), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:01:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 343 transitions. [2024-09-12 19:01:37,289 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 343 transitions. Word has length 73 [2024-09-12 19:01:37,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:37,291 INFO L474 AbstractCegarLoop]: Abstraction has 294 states and 343 transitions. [2024-09-12 19:01:37,291 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 8 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-09-12 19:01:37,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 343 transitions. [2024-09-12 19:01:37,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-09-12 19:01:37,292 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:37,292 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 19:01:37,304 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:01:37,492 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:37,492 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:37,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:37,493 INFO L85 PathProgramCache]: Analyzing trace with hash -897719606, now seen corresponding path program 1 times [2024-09-12 19:01:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:37,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581056348] [2024-09-12 19:01:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:01:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:01:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:01:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:01:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,584 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:01:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:01:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:37,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:37,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581056348] [2024-09-12 19:01:37,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581056348] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:01:37,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235199025] [2024-09-12 19:01:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:37,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:37,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:37,589 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 19:01:37,591 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 19:01:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:37,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:01:37,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:37,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:37,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235199025] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:01:37,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:01:37,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-12 19:01:37,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950286744] [2024-09-12 19:01:37,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:37,826 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:01:37,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:01:37,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:01:37,827 INFO L87 Difference]: Start difference. First operand 294 states and 343 transitions. Second operand has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-09-12 19:01:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:38,180 INFO L93 Difference]: Finished difference Result 323 states and 376 transitions. [2024-09-12 19:01:38,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:01:38,182 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 74 [2024-09-12 19:01:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:38,183 INFO L225 Difference]: With dead ends: 323 [2024-09-12 19:01:38,183 INFO L226 Difference]: Without dead ends: 322 [2024-09-12 19:01:38,184 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:01:38,184 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 152 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:38,184 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 217 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:01:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-09-12 19:01:38,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 294. [2024-09-12 19:01:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 257 states have (on average 1.2334630350194553) internal successors, (317), 278 states have internal predecessors, (317), 12 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:01:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 339 transitions. [2024-09-12 19:01:38,263 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 339 transitions. Word has length 74 [2024-09-12 19:01:38,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:38,264 INFO L474 AbstractCegarLoop]: Abstraction has 294 states and 339 transitions. [2024-09-12 19:01:38,264 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-09-12 19:01:38,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 339 transitions. [2024-09-12 19:01:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-09-12 19:01:38,264 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:38,265 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-09-12 19:01:38,277 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 19:01:38,465 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:01:38,465 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:38,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1951891297, now seen corresponding path program 1 times [2024-09-12 19:01:38,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:38,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36188469] [2024-09-12 19:01:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:01:38,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784825991] [2024-09-12 19:01:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:38,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:38,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:38,480 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 19:01:38,481 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 19:01:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:38,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:01:38,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:38,573 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:38,573 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:38,648 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:38,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:38,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36188469] [2024-09-12 19:01:38,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:01:38,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784825991] [2024-09-12 19:01:38,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784825991] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:01:38,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:01:38,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:01:38,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410535047] [2024-09-12 19:01:38,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:38,650 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:01:38,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:38,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:01:38,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:01:38,651 INFO L87 Difference]: Start difference. First operand 294 states and 339 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:01:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:39,015 INFO L93 Difference]: Finished difference Result 583 states and 730 transitions. [2024-09-12 19:01:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:01:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2024-09-12 19:01:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:39,018 INFO L225 Difference]: With dead ends: 583 [2024-09-12 19:01:39,018 INFO L226 Difference]: Without dead ends: 572 [2024-09-12 19:01:39,018 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:01:39,018 INFO L434 NwaCegarLoop]: 92 mSDtfsCounter, 169 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:39,019 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 315 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:01:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-09-12 19:01:39,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 496. [2024-09-12 19:01:39,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 461 states have (on average 1.1843817787418656) internal successors, (546), 474 states have internal predecessors, (546), 18 states have call successors, (18), 5 states have call predecessors, (18), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 19:01:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 580 transitions. [2024-09-12 19:01:39,182 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 580 transitions. Word has length 79 [2024-09-12 19:01:39,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:39,183 INFO L474 AbstractCegarLoop]: Abstraction has 496 states and 580 transitions. [2024-09-12 19:01:39,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:01:39,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 580 transitions. [2024-09-12 19:01:39,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:01:39,183 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:39,183 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:39,196 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:01:39,387 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:39,387 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:39,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash 72740482, now seen corresponding path program 1 times [2024-09-12 19:01:39,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:39,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035315005] [2024-09-12 19:01:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:39,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,541 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:01:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,543 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:01:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:01:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:01:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,546 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:01:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:01:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:39,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:39,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035315005] [2024-09-12 19:01:39,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035315005] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:01:39,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925855896] [2024-09-12 19:01:39,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:39,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:39,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:39,567 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 19:01:39,568 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 19:01:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:39,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:01:39,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:39,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:39,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925855896] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:01:39,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:01:39,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 12 [2024-09-12 19:01:39,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727359263] [2024-09-12 19:01:39,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:39,762 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:01:39,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:01:39,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:01:39,763 INFO L87 Difference]: Start difference. First operand 496 states and 580 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 19:01:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:40,646 INFO L93 Difference]: Finished difference Result 502 states and 585 transitions. [2024-09-12 19:01:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:01:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-09-12 19:01:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:40,648 INFO L225 Difference]: With dead ends: 502 [2024-09-12 19:01:40,648 INFO L226 Difference]: Without dead ends: 479 [2024-09-12 19:01:40,649 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:01:40,649 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:40,649 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 383 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:01:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-09-12 19:01:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-09-12 19:01:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 445 states have (on average 1.1820224719101124) internal successors, (526), 457 states have internal predecessors, (526), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 19:01:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 559 transitions. [2024-09-12 19:01:40,815 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 559 transitions. Word has length 85 [2024-09-12 19:01:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:40,816 INFO L474 AbstractCegarLoop]: Abstraction has 479 states and 559 transitions. [2024-09-12 19:01:40,816 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 1 states have call successors, (8) [2024-09-12 19:01:40,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 559 transitions. [2024-09-12 19:01:40,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-09-12 19:01:40,816 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:40,817 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:01:40,830 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-09-12 19:01:41,017 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:01:41,018 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:41,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:41,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1215833725, now seen corresponding path program 1 times [2024-09-12 19:01:41,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:41,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996816239] [2024-09-12 19:01:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:41,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:01:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,106 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:01:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,109 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:01:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,125 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:01:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,127 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:01:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,129 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:01:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996816239] [2024-09-12 19:01:41,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996816239] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:01:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705896400] [2024-09-12 19:01:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:41,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:41,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:41,133 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 19:01:41,134 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 19:01:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:41,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:01:41,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:41,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:50,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705896400] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:01:50,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:01:50,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-09-12 19:01:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009957430] [2024-09-12 19:01:50,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:50,864 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:01:50,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:50,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:01:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=118, Unknown=2, NotChecked=0, Total=156 [2024-09-12 19:01:50,865 INFO L87 Difference]: Start difference. First operand 479 states and 559 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:01:53,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:01:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:53,921 INFO L93 Difference]: Finished difference Result 483 states and 559 transitions. [2024-09-12 19:01:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:01:53,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 85 [2024-09-12 19:01:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:53,923 INFO L225 Difference]: With dead ends: 483 [2024-09-12 19:01:53,924 INFO L226 Difference]: Without dead ends: 463 [2024-09-12 19:01:53,924 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=54, Invalid=154, Unknown=2, NotChecked=0, Total=210 [2024-09-12 19:01:53,924 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 132 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:53,924 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 233 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-09-12 19:01:53,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-09-12 19:01:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 444. [2024-09-12 19:01:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 414 states have (on average 1.1473429951690821) internal successors, (475), 422 states have internal predecessors, (475), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 19:01:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 508 transitions. [2024-09-12 19:01:54,102 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 508 transitions. Word has length 85 [2024-09-12 19:01:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:54,103 INFO L474 AbstractCegarLoop]: Abstraction has 444 states and 508 transitions. [2024-09-12 19:01:54,103 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 10 states have internal predecessors, (81), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:01:54,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 508 transitions. [2024-09-12 19:01:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 19:01:54,104 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:54,104 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:54,119 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 19:01:54,307 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:01:54,308 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:54,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:54,308 INFO L85 PathProgramCache]: Analyzing trace with hash -837525257, now seen corresponding path program 1 times [2024-09-12 19:01:54,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:54,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868420502] [2024-09-12 19:01:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:01:54,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071317037] [2024-09-12 19:01:54,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:54,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:54,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:54,320 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 19:01:54,321 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 19:01:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:54,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:01:54,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:01:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:01:55,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:01:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:01:55,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:01:55,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868420502] [2024-09-12 19:01:55,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:01:55,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071317037] [2024-09-12 19:01:55,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071317037] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:01:55,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:01:55,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 16 [2024-09-12 19:01:55,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113555498] [2024-09-12 19:01:55,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:01:55,774 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:01:55,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:01:55,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:01:55,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:01:55,775 INFO L87 Difference]: Start difference. First operand 444 states and 508 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 15 states have internal predecessors, (134), 5 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 19:01:57,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:01:57,531 INFO L93 Difference]: Finished difference Result 484 states and 549 transitions. [2024-09-12 19:01:57,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:01:57,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 15 states have internal predecessors, (134), 5 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-09-12 19:01:57,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:01:57,536 INFO L225 Difference]: With dead ends: 484 [2024-09-12 19:01:57,538 INFO L226 Difference]: Without dead ends: 481 [2024-09-12 19:01:57,538 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 170 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:01:57,538 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:01:57,538 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 425 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-09-12 19:01:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-09-12 19:01:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 478. [2024-09-12 19:01:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 445 states have (on average 1.1370786516853932) internal successors, (506), 455 states have internal predecessors, (506), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:01:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 543 transitions. [2024-09-12 19:01:57,745 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 543 transitions. Word has length 93 [2024-09-12 19:01:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:01:57,745 INFO L474 AbstractCegarLoop]: Abstraction has 478 states and 543 transitions. [2024-09-12 19:01:57,745 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 15 states have internal predecessors, (134), 5 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 19:01:57,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 543 transitions. [2024-09-12 19:01:57,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 19:01:57,746 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:01:57,746 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:01:57,759 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:01:57,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:57,951 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:01:57,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:01:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2015811539, now seen corresponding path program 1 times [2024-09-12 19:01:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:01:57,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430114455] [2024-09-12 19:01:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:01:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:01:57,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714491197] [2024-09-12 19:01:57,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:01:57,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:01:57,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:01:57,972 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 19:01:57,973 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 19:01:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:01:58,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:01:58,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-12 19:02:06,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:09,538 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:02:09,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:09,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430114455] [2024-09-12 19:02:09,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:02:09,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714491197] [2024-09-12 19:02:09,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714491197] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:09,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:02:09,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 15 [2024-09-12 19:02:09,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034195443] [2024-09-12 19:02:09,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:09,539 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:02:09,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:09,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:02:09,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:02:09,540 INFO L87 Difference]: Start difference. First operand 478 states and 543 transitions. Second operand has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 14 states have internal predecessors, (115), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 19:02:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:13,364 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2024-09-12 19:02:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:02:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 14 states have internal predecessors, (115), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-09-12 19:02:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:13,367 INFO L225 Difference]: With dead ends: 478 [2024-09-12 19:02:13,367 INFO L226 Difference]: Without dead ends: 476 [2024-09-12 19:02:13,367 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:02:13,367 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 61 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:13,367 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 351 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-09-12 19:02:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-09-12 19:02:13,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2024-09-12 19:02:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 444 states have (on average 1.135135135135135) internal successors, (504), 453 states have internal predecessors, (504), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:02:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 541 transitions. [2024-09-12 19:02:13,591 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 541 transitions. Word has length 93 [2024-09-12 19:02:13,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:13,591 INFO L474 AbstractCegarLoop]: Abstraction has 476 states and 541 transitions. [2024-09-12 19:02:13,591 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 14 states have internal predecessors, (115), 4 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-09-12 19:02:13,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 541 transitions. [2024-09-12 19:02:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:02:13,592 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:13,592 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:02:13,605 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 19:02:13,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:02:13,793 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:13,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:13,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1885230755, now seen corresponding path program 1 times [2024-09-12 19:02:13,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:13,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397325928] [2024-09-12 19:02:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:13,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,864 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,867 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,869 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:13,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:13,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397325928] [2024-09-12 19:02:13,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397325928] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:13,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454660020] [2024-09-12 19:02:13,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:13,876 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 19:02:13,877 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 19:02:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:13,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:02:13,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:14,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:02:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454660020] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:02:14,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:02:14,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-09-12 19:02:14,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919743100] [2024-09-12 19:02:14,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:02:14,054 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:02:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:02:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:02:14,055 INFO L87 Difference]: Start difference. First operand 476 states and 541 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:02:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:14,374 INFO L93 Difference]: Finished difference Result 494 states and 567 transitions. [2024-09-12 19:02:14,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:02:14,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2024-09-12 19:02:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:14,376 INFO L225 Difference]: With dead ends: 494 [2024-09-12 19:02:14,376 INFO L226 Difference]: Without dead ends: 493 [2024-09-12 19:02:14,377 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:02:14,377 INFO L434 NwaCegarLoop]: 56 mSDtfsCounter, 32 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:14,377 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 115 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:02:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-09-12 19:02:14,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 475. [2024-09-12 19:02:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 444 states have (on average 1.114864864864865) internal successors, (495), 452 states have internal predecessors, (495), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:02:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 532 transitions. [2024-09-12 19:02:14,603 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 532 transitions. Word has length 98 [2024-09-12 19:02:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:14,603 INFO L474 AbstractCegarLoop]: Abstraction has 475 states and 532 transitions. [2024-09-12 19:02:14,603 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:02:14,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 532 transitions. [2024-09-12 19:02:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-09-12 19:02:14,604 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:14,604 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 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 19:02:14,616 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 19:02:14,808 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:02:14,808 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:14,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 674317737, now seen corresponding path program 1 times [2024-09-12 19:02:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:14,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711490946] [2024-09-12 19:02:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:14,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,870 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,882 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:14,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711490946] [2024-09-12 19:02:14,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711490946] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:14,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290379692] [2024-09-12 19:02:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:14,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:14,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:14,886 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 19:02:14,888 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 19:02:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:14,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:02:14,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:15,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:15,221 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:15,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290379692] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:15,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:02:15,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-09-12 19:02:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682816074] [2024-09-12 19:02:15,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:15,222 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:02:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:02:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:02:15,223 INFO L87 Difference]: Start difference. First operand 475 states and 532 transitions. Second operand has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 19:02:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:15,780 INFO L93 Difference]: Finished difference Result 485 states and 540 transitions. [2024-09-12 19:02:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-12 19:02:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) Word has length 104 [2024-09-12 19:02:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:15,782 INFO L225 Difference]: With dead ends: 485 [2024-09-12 19:02:15,782 INFO L226 Difference]: Without dead ends: 483 [2024-09-12 19:02:15,782 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:02:15,783 INFO L434 NwaCegarLoop]: 52 mSDtfsCounter, 315 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:15,783 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 411 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:02:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-09-12 19:02:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 474. [2024-09-12 19:02:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 444 states have (on average 1.0923423423423424) internal successors, (485), 451 states have internal predecessors, (485), 19 states have call successors, (19), 6 states have call predecessors, (19), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2024-09-12 19:02:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 522 transitions. [2024-09-12 19:02:16,014 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 522 transitions. Word has length 104 [2024-09-12 19:02:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:16,014 INFO L474 AbstractCegarLoop]: Abstraction has 474 states and 522 transitions. [2024-09-12 19:02:16,014 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.733333333333333) internal successors, (206), 16 states have internal predecessors, (206), 9 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-09-12 19:02:16,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 522 transitions. [2024-09-12 19:02:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-09-12 19:02:16,015 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:16,015 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 19:02:16,027 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:02:16,216 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:02:16,216 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:16,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1766475102, now seen corresponding path program 1 times [2024-09-12 19:02:16,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:16,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71070224] [2024-09-12 19:02:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:02:16,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228110243] [2024-09-12 19:02:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:16,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:16,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:16,229 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 19:02:16,230 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 19:02:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:16,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:02:16,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:02:16,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:16,740 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-12 19:02:16,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:16,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71070224] [2024-09-12 19:02:16,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:02:16,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228110243] [2024-09-12 19:02:16,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228110243] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:16,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:02:16,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-09-12 19:02:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507100930] [2024-09-12 19:02:16,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:16,741 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:02:16,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:02:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:02:16,742 INFO L87 Difference]: Start difference. First operand 474 states and 522 transitions. Second operand has 13 states, 12 states have (on average 13.0) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-09-12 19:02:18,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:18,016 INFO L93 Difference]: Finished difference Result 1588 states and 1777 transitions. [2024-09-12 19:02:18,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:02:18,016 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.0) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 107 [2024-09-12 19:02:18,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:18,021 INFO L225 Difference]: With dead ends: 1588 [2024-09-12 19:02:18,021 INFO L226 Difference]: Without dead ends: 1587 [2024-09-12 19:02:18,021 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:02:18,022 INFO L434 NwaCegarLoop]: 98 mSDtfsCounter, 462 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:18,022 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 638 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:02:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-09-12 19:02:18,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1498. [2024-09-12 19:02:18,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1432 states have (on average 1.1012569832402235) internal successors, (1577), 1447 states have internal predecessors, (1577), 55 states have call successors, (55), 6 states have call predecessors, (55), 5 states have return successors, (54), 44 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 19:02:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1686 transitions. [2024-09-12 19:02:18,915 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1686 transitions. Word has length 107 [2024-09-12 19:02:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:18,916 INFO L474 AbstractCegarLoop]: Abstraction has 1498 states and 1686 transitions. [2024-09-12 19:02:18,916 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.0) internal successors, (156), 13 states have internal predecessors, (156), 7 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-09-12 19:02:18,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1686 transitions. [2024-09-12 19:02:18,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 19:02:18,917 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:18,917 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:02:18,929 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:02:19,117 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:19,117 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:19,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:19,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2092295337, now seen corresponding path program 1 times [2024-09-12 19:02:19,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:19,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38388025] [2024-09-12 19:02:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,179 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,181 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,182 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,183 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 48 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:19,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:19,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38388025] [2024-09-12 19:02:19,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38388025] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:19,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223180919] [2024-09-12 19:02:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:19,187 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 19:02:19,188 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 19:02:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:19,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:02:19,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:02:19,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:02:19,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223180919] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:02:19,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:02:19,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-09-12 19:02:19,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861614672] [2024-09-12 19:02:19,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:02:19,301 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:02:19,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:19,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:02:19,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:02:19,302 INFO L87 Difference]: Start difference. First operand 1498 states and 1686 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:02:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:20,299 INFO L93 Difference]: Finished difference Result 1500 states and 1686 transitions. [2024-09-12 19:02:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:02:20,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 118 [2024-09-12 19:02:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:20,305 INFO L225 Difference]: With dead ends: 1500 [2024-09-12 19:02:20,305 INFO L226 Difference]: Without dead ends: 1483 [2024-09-12 19:02:20,306 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:02:20,306 INFO L434 NwaCegarLoop]: 88 mSDtfsCounter, 87 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:20,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 183 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:02:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-09-12 19:02:21,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1481. [2024-09-12 19:02:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1417 states have (on average 1.0642201834862386) internal successors, (1508), 1430 states have internal predecessors, (1508), 55 states have call successors, (55), 6 states have call predecessors, (55), 5 states have return successors, (54), 44 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 19:02:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1617 transitions. [2024-09-12 19:02:21,216 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1617 transitions. Word has length 118 [2024-09-12 19:02:21,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:21,217 INFO L474 AbstractCegarLoop]: Abstraction has 1481 states and 1617 transitions. [2024-09-12 19:02:21,217 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:02:21,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1617 transitions. [2024-09-12 19:02:21,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:02:21,218 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:21,218 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:02:21,230 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:02:21,418 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:21,418 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:21,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:21,419 INFO L85 PathProgramCache]: Analyzing trace with hash 966525114, now seen corresponding path program 1 times [2024-09-12 19:02:21,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:21,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231111459] [2024-09-12 19:02:21,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:21,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:02:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-09-12 19:02:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:21,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231111459] [2024-09-12 19:02:21,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231111459] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:02:21,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:02:21,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:02:21,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120819607] [2024-09-12 19:02:21,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:02:21,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:02:21,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:02:21,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:02:21,462 INFO L87 Difference]: Start difference. First operand 1481 states and 1617 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:02:22,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:22,373 INFO L93 Difference]: Finished difference Result 1481 states and 1617 transitions. [2024-09-12 19:02:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:02:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 127 [2024-09-12 19:02:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:22,378 INFO L225 Difference]: With dead ends: 1481 [2024-09-12 19:02:22,378 INFO L226 Difference]: Without dead ends: 1480 [2024-09-12 19:02:22,378 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 19:02:22,378 INFO L434 NwaCegarLoop]: 54 mSDtfsCounter, 31 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:22,378 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 129 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:02:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-09-12 19:02:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1480. [2024-09-12 19:02:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1417 states have (on average 1.0486944248412138) internal successors, (1486), 1429 states have internal predecessors, (1486), 55 states have call successors, (55), 6 states have call predecessors, (55), 5 states have return successors, (54), 44 states have call predecessors, (54), 54 states have call successors, (54) [2024-09-12 19:02:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1595 transitions. [2024-09-12 19:02:23,349 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1595 transitions. Word has length 127 [2024-09-12 19:02:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:23,349 INFO L474 AbstractCegarLoop]: Abstraction has 1480 states and 1595 transitions. [2024-09-12 19:02:23,351 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:02:23,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1595 transitions. [2024-09-12 19:02:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-09-12 19:02:23,352 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:23,352 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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 19:02:23,352 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-09-12 19:02:23,352 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:23,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1598733697, now seen corresponding path program 1 times [2024-09-12 19:02:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:23,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754909986] [2024-09-12 19:02:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,452 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,454 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,456 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:02:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-09-12 19:02:23,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:23,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754909986] [2024-09-12 19:02:23,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754909986] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:23,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462179352] [2024-09-12 19:02:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:23,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:23,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:23,463 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:02:23,464 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:02:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:23,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:02:23,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 22 proven. 63 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 19:02:23,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 22 proven. 63 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-09-12 19:02:24,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462179352] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:24,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:02:24,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2024-09-12 19:02:24,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774198300] [2024-09-12 19:02:24,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:24,007 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:02:24,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:02:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:02:24,008 INFO L87 Difference]: Start difference. First operand 1480 states and 1595 transitions. Second operand has 21 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 14 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 14 states have call predecessors, (22), 14 states have call successors, (22) [2024-09-12 19:02:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:25,431 INFO L93 Difference]: Finished difference Result 1931 states and 2085 transitions. [2024-09-12 19:02:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-12 19:02:25,431 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 14 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 14 states have call predecessors, (22), 14 states have call successors, (22) Word has length 135 [2024-09-12 19:02:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:25,436 INFO L225 Difference]: With dead ends: 1931 [2024-09-12 19:02:25,436 INFO L226 Difference]: Without dead ends: 1240 [2024-09-12 19:02:25,437 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2024-09-12 19:02:25,437 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 152 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:25,437 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 282 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:02:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-09-12 19:02:26,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1013. [2024-09-12 19:02:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 966 states have (on average 1.0279503105590062) internal successors, (993), 977 states have internal predecessors, (993), 40 states have call successors, (40), 6 states have call predecessors, (40), 5 states have return successors, (39), 29 states have call predecessors, (39), 39 states have call successors, (39) [2024-09-12 19:02:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1072 transitions. [2024-09-12 19:02:26,027 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1072 transitions. Word has length 135 [2024-09-12 19:02:26,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:26,027 INFO L474 AbstractCegarLoop]: Abstraction has 1013 states and 1072 transitions. [2024-09-12 19:02:26,027 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 14 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 14 states have call predecessors, (22), 14 states have call successors, (22) [2024-09-12 19:02:26,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:26,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1072 transitions. [2024-09-12 19:02:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-09-12 19:02:26,028 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:26,029 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, 1, 1, 1, 1, 1, 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 19:02:26,040 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:02:26,229 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:02:26,229 INFO L399 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:26,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:26,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2016684870, now seen corresponding path program 2 times [2024-09-12 19:02:26,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:26,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432267898] [2024-09-12 19:02:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:26,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:02:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672919017] [2024-09-12 19:02:26,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:02:26,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:26,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:26,251 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:02:26,252 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:02:26,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:02:26,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:02:26,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:02:26,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 19:02:26,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-09-12 19:02:26,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:26,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432267898] [2024-09-12 19:02:26,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:02:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672919017] [2024-09-12 19:02:26,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672919017] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:26,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:02:26,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 19:02:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256789307] [2024-09-12 19:02:26,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:26,602 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:02:26,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:26,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:02:26,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:02:26,603 INFO L87 Difference]: Start difference. First operand 1013 states and 1072 transitions. Second operand has 12 states, 11 states have (on average 22.363636363636363) internal successors, (246), 12 states have internal predecessors, (246), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) [2024-09-12 19:02:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:28,614 INFO L93 Difference]: Finished difference Result 2744 states and 2938 transitions. [2024-09-12 19:02:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:02:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 22.363636363636363) internal successors, (246), 12 states have internal predecessors, (246), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) Word has length 169 [2024-09-12 19:02:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:28,622 INFO L225 Difference]: With dead ends: 2744 [2024-09-12 19:02:28,622 INFO L226 Difference]: Without dead ends: 2743 [2024-09-12 19:02:28,622 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:02:28,623 INFO L434 NwaCegarLoop]: 123 mSDtfsCounter, 240 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:28,623 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 786 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:02:28,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2024-09-12 19:02:30,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2735. [2024-09-12 19:02:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2622 states have (on average 1.0263157894736843) internal successors, (2691), 2663 states have internal predecessors, (2691), 106 states have call successors, (106), 6 states have call predecessors, (106), 5 states have return successors, (105), 65 states have call predecessors, (105), 105 states have call successors, (105) [2024-09-12 19:02:30,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 2902 transitions. [2024-09-12 19:02:30,458 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 2902 transitions. Word has length 169 [2024-09-12 19:02:30,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:30,458 INFO L474 AbstractCegarLoop]: Abstraction has 2735 states and 2902 transitions. [2024-09-12 19:02:30,458 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 22.363636363636363) internal successors, (246), 12 states have internal predecessors, (246), 9 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 9 states have call predecessors, (13), 9 states have call successors, (13) [2024-09-12 19:02:30,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 2902 transitions. [2024-09-12 19:02:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-09-12 19:02:30,460 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:30,460 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:02:30,471 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 19:02:30,660 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-09-12 19:02:30,660 INFO L399 AbstractCegarLoop]: === Iteration 35 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:30,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1534959062, now seen corresponding path program 2 times [2024-09-12 19:02:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968500506] [2024-09-12 19:02:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:02:30,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059946001] [2024-09-12 19:02:30,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:02:30,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:30,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:30,681 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:02:30,682 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-09-12 19:02:30,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:02:30,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:02:30,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:02:30,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 314 proven. 130 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:02:31,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:32,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968500506] [2024-09-12 19:02:32,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:02:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059946001] [2024-09-12 19:02:32,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059946001] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:32,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:02:32,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-09-12 19:02:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942583179] [2024-09-12 19:02:32,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:32,202 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:02:32,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:02:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=759, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:02:32,203 INFO L87 Difference]: Start difference. First operand 2735 states and 2902 transitions. Second operand has 17 states, 17 states have (on average 10.764705882352942) internal successors, (183), 17 states have internal predecessors, (183), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:02:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:34,945 INFO L93 Difference]: Finished difference Result 3134 states and 3329 transitions. [2024-09-12 19:02:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:02:34,945 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.764705882352942) internal successors, (183), 17 states have internal predecessors, (183), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 227 [2024-09-12 19:02:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:34,953 INFO L225 Difference]: With dead ends: 3134 [2024-09-12 19:02:34,953 INFO L226 Difference]: Without dead ends: 2648 [2024-09-12 19:02:34,954 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 408 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=357, Invalid=1203, Unknown=0, NotChecked=0, Total=1560 [2024-09-12 19:02:34,954 INFO L434 NwaCegarLoop]: 53 mSDtfsCounter, 141 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:34,954 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 398 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:02:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2024-09-12 19:02:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2648. [2024-09-12 19:02:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2538 states have (on average 1.0260047281323876) internal successors, (2604), 2578 states have internal predecessors, (2604), 103 states have call successors, (103), 6 states have call predecessors, (103), 5 states have return successors, (102), 63 states have call predecessors, (102), 102 states have call successors, (102) [2024-09-12 19:02:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 2809 transitions. [2024-09-12 19:02:36,640 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 2809 transitions. Word has length 227 [2024-09-12 19:02:36,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:36,641 INFO L474 AbstractCegarLoop]: Abstraction has 2648 states and 2809 transitions. [2024-09-12 19:02:36,641 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.764705882352942) internal successors, (183), 17 states have internal predecessors, (183), 9 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:02:36,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 2809 transitions. [2024-09-12 19:02:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-09-12 19:02:36,644 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:36,644 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:02:36,655 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-09-12 19:02:36,844 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-09-12 19:02:36,844 INFO L399 AbstractCegarLoop]: === Iteration 36 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:36,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:36,845 INFO L85 PathProgramCache]: Analyzing trace with hash 362511620, now seen corresponding path program 1 times [2024-09-12 19:02:36,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:36,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103319977] [2024-09-12 19:02:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:36,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,309 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,311 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:02:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 19:02:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 19:02:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 19:02:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 19:02:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 19:02:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 79 proven. 666 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 19:02:37,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103319977] [2024-09-12 19:02:37,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103319977] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111881278] [2024-09-12 19:02:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:37,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:37,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:37,367 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:02:37,369 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-09-12 19:02:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:37,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-12 19:02:37,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 334 proven. 411 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 19:02:38,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 82 proven. 663 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-09-12 19:02:39,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111881278] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:39,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:02:39,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 20] total 51 [2024-09-12 19:02:39,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719697643] [2024-09-12 19:02:39,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:39,044 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-09-12 19:02:39,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:39,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-09-12 19:02:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2187, Unknown=0, NotChecked=0, Total=2550 [2024-09-12 19:02:39,046 INFO L87 Difference]: Start difference. First operand 2648 states and 2809 transitions. Second operand has 51 states, 51 states have (on average 12.72549019607843) internal successors, (649), 51 states have internal predecessors, (649), 28 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 28 states have call predecessors, (34), 28 states have call successors, (34) [2024-09-12 19:02:46,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:46,369 INFO L93 Difference]: Finished difference Result 7596 states and 8113 transitions. [2024-09-12 19:02:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-09-12 19:02:46,369 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 12.72549019607843) internal successors, (649), 51 states have internal predecessors, (649), 28 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 28 states have call predecessors, (34), 28 states have call successors, (34) Word has length 287 [2024-09-12 19:02:46,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:46,385 INFO L225 Difference]: With dead ends: 7596 [2024-09-12 19:02:46,385 INFO L226 Difference]: Without dead ends: 5942 [2024-09-12 19:02:46,390 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3260 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1965, Invalid=9591, Unknown=0, NotChecked=0, Total=11556 [2024-09-12 19:02:46,390 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 371 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 4781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:46,390 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 694 Invalid, 4781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4671 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-09-12 19:02:46,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2024-09-12 19:02:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 4777. [2024-09-12 19:02:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4777 states, 4591 states have (on average 1.0344151600958398) internal successors, (4749), 4618 states have internal predecessors, (4749), 179 states have call successors, (179), 6 states have call predecessors, (179), 5 states have return successors, (178), 152 states have call predecessors, (178), 178 states have call successors, (178) [2024-09-12 19:02:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 5106 transitions. [2024-09-12 19:02:49,876 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 5106 transitions. Word has length 287 [2024-09-12 19:02:49,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:02:49,876 INFO L474 AbstractCegarLoop]: Abstraction has 4777 states and 5106 transitions. [2024-09-12 19:02:49,876 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 12.72549019607843) internal successors, (649), 51 states have internal predecessors, (649), 28 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (34), 28 states have call predecessors, (34), 28 states have call successors, (34) [2024-09-12 19:02:49,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 5106 transitions. [2024-09-12 19:02:49,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-09-12 19:02:49,881 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:02:49,881 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:02:49,893 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-09-12 19:02:50,085 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-09-12 19:02:50,086 INFO L399 AbstractCegarLoop]: === Iteration 37 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:02:50,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:02:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1941006332, now seen corresponding path program 2 times [2024-09-12 19:02:50,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:02:50,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231033289] [2024-09-12 19:02:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:02:50,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:02:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:02:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:02:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:02:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:02:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,415 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:02:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:02:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:02:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:02:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 19:02:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 19:02:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 19:02:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 19:02:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 19:02:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:02:50,435 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 98 proven. 638 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-09-12 19:02:50,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:02:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231033289] [2024-09-12 19:02:50,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231033289] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:02:50,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887132880] [2024-09-12 19:02:50,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:02:50,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:02:50,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:02:50,437 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:02:50,439 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-09-12 19:02:50,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:02:50,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:02:50,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:02:50,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:02:50,734 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 545 proven. 140 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-09-12 19:02:50,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:02:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 485 proven. 140 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-09-12 19:02:51,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887132880] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:02:51,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:02:51,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 33 [2024-09-12 19:02:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94484815] [2024-09-12 19:02:51,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:02:51,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-09-12 19:02:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:02:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-09-12 19:02:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2024-09-12 19:02:51,043 INFO L87 Difference]: Start difference. First operand 4777 states and 5106 transitions. Second operand has 33 states, 33 states have (on average 14.393939393939394) internal successors, (475), 33 states have internal predecessors, (475), 18 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 18 states have call predecessors, (24), 18 states have call successors, (24) [2024-09-12 19:02:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:02:57,845 INFO L93 Difference]: Finished difference Result 9062 states and 9709 transitions. [2024-09-12 19:02:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-09-12 19:02:57,846 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 14.393939393939394) internal successors, (475), 33 states have internal predecessors, (475), 18 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 18 states have call predecessors, (24), 18 states have call successors, (24) Word has length 287 [2024-09-12 19:02:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:02:57,867 INFO L225 Difference]: With dead ends: 9062 [2024-09-12 19:02:57,867 INFO L226 Difference]: Without dead ends: 6889 [2024-09-12 19:02:57,874 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1635 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=856, Invalid=5306, Unknown=0, NotChecked=0, Total=6162 [2024-09-12 19:02:57,874 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 183 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:02:57,874 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 903 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:02:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6889 states. [2024-09-12 19:03:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6889 to 6103. [2024-09-12 19:03:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6103 states, 5872 states have (on average 1.0349114441416893) internal successors, (6077), 5873 states have internal predecessors, (6077), 224 states have call successors, (224), 6 states have call predecessors, (224), 5 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2024-09-12 19:03:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 6524 transitions. [2024-09-12 19:03:02,632 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 6524 transitions. Word has length 287 [2024-09-12 19:03:02,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:03:02,633 INFO L474 AbstractCegarLoop]: Abstraction has 6103 states and 6524 transitions. [2024-09-12 19:03:02,633 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 14.393939393939394) internal successors, (475), 33 states have internal predecessors, (475), 18 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 18 states have call predecessors, (24), 18 states have call successors, (24) [2024-09-12 19:03:02,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:03:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 6524 transitions. [2024-09-12 19:03:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-09-12 19:03:02,639 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:03:02,639 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:03:02,651 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-09-12 19:03:02,839 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,27 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:03:02,840 INFO L399 AbstractCegarLoop]: === Iteration 38 === Targeting mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 54 more)] === [2024-09-12 19:03:02,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:03:02,840 INFO L85 PathProgramCache]: Analyzing trace with hash -521735493, now seen corresponding path program 3 times [2024-09-12 19:03:02,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:03:02,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50509870] [2024-09-12 19:03:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:03:02,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:03:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:03:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:03:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:03:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-09-12 19:03:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-09-12 19:03:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,087 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-09-12 19:03:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:03:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-09-12 19:03:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-09-12 19:03:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,094 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 19:03:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-09-12 19:03:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,097 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-09-12 19:03:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2024-09-12 19:03:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2024-09-12 19:03:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:03:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 492 proven. 324 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-09-12 19:03:03,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:03:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50509870] [2024-09-12 19:03:03,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50509870] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:03:03,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768274076] [2024-09-12 19:03:03,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:03:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:03:03,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:03:03,102 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:03:03,103 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-09-12 19:03:03,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-09-12 19:03:03,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:03:03,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-09-12 19:03:03,511 INFO L285 TraceCheckSpWp]: Computing forward predicates...