./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34f640e37bae156029b1a359a4abe58394472212f3f36aea9107706542ec544a --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 19:31:46,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:31:46,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:31:46,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:31:46,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:31:46,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:31:46,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:31:46,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:31:46,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:31:46,594 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:31:46,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:31:46,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:31:46,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:31:46,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:31:46,596 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:31:46,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:31:46,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:31:46,597 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:31:46,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:31:46,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:31:46,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:31:46,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:31:46,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:31:46,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:31:46,600 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:31:46,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:31:46,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:31:46,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:31:46,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:31:46,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:31:46,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:31:46,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:31:46,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:31:46,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:31:46,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:31:46,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:31:46,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:31:46,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f640e37bae156029b1a359a4abe58394472212f3f36aea9107706542ec544a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:31:46,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:31:46,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:31:46,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:31:46,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:31:46,879 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:31:46,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c [2024-09-12 19:31:48,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:31:48,296 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:31:48,297 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound5.c [2024-09-12 19:31:48,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/8d7c75a59/73d31c91e56a4038974b07aa2265f6b9/FLAG021f5795d [2024-09-12 19:31:48,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/8d7c75a59/73d31c91e56a4038974b07aa2265f6b9 [2024-09-12 19:31:48,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:31:48,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:31:48,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:31:48,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:31:48,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:31:48,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23097c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48, skipping insertion in model container [2024-09-12 19:31:48,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:31:48,805 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/prodbin-ll_valuebound5.c[537,550] [2024-09-12 19:31:48,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:31:48,830 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:31:48,838 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/prodbin-ll_valuebound5.c[537,550] [2024-09-12 19:31:48,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:31:48,857 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:31:48,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48 WrapperNode [2024-09-12 19:31:48,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:31:48,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:31:48,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:31:48,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:31:48,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,876 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:31:48,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:31:48,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:31:48,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:31:48,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:31:48,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,907 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-12 19:31:48,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,913 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:31:48,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:31:48,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:31:48,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:31:48,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (1/1) ... [2024-09-12 19:31:48,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:31:48,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:48,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 19:31:48,958 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 19:31:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:31:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 19:31:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 19:31:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:31:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:31:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:31:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:31:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:31:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:31:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:31:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:31:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:31:49,046 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:31:49,048 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:31:49,285 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-09-12 19:31:49,287 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:31:49,314 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:31:49,314 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:31:49,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:31:49 BoogieIcfgContainer [2024-09-12 19:31:49,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:31:49,316 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:31:49,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:31:49,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:31:49,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:31:48" (1/3) ... [2024-09-12 19:31:49,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434496d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:31:49, skipping insertion in model container [2024-09-12 19:31:49,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:31:48" (2/3) ... [2024-09-12 19:31:49,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434496d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:31:49, skipping insertion in model container [2024-09-12 19:31:49,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:31:49" (3/3) ... [2024-09-12 19:31:49,322 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound5.c [2024-09-12 19:31:49,334 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:31:49,334 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-09-12 19:31:49,384 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:31:49,389 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;@1e65e30b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:31:49,389 INFO L337 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-09-12 19:31:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 32 states have (on average 1.71875) internal successors, (55), 49 states have internal predecessors, (55), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:31:49,396 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:49,397 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:49,397 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:49,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash 879003286, now seen corresponding path program 1 times [2024-09-12 19:31:49,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:49,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682073183] [2024-09-12 19:31:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:49,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,514 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,528 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,536 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:49,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:49,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682073183] [2024-09-12 19:31:49,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682073183] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:49,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:49,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-12 19:31:49,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270347261] [2024-09-12 19:31:49,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:49,559 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-12 19:31:49,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:49,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-12 19:31:49,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:31:49,584 INFO L87 Difference]: Start difference. First operand has 61 states, 32 states have (on average 1.71875) internal successors, (55), 49 states have internal predecessors, (55), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:31:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:49,608 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2024-09-12 19:31:49,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-12 19:31:49,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 19:31:49,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:49,618 INFO L225 Difference]: With dead ends: 116 [2024-09-12 19:31:49,618 INFO L226 Difference]: Without dead ends: 57 [2024-09-12 19:31:49,621 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-12 19:31:49,624 INFO L434 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:49,625 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:31:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-09-12 19:31:49,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-09-12 19:31:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 47 states have internal predecessors, (49), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-12 19:31:49,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2024-09-12 19:31:49,662 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 24 [2024-09-12 19:31:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:49,663 INFO L474 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2024-09-12 19:31:49,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:31:49,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2024-09-12 19:31:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-12 19:31:49,666 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:49,666 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:49,666 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:31:49,666 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:49,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:49,667 INFO L85 PathProgramCache]: Analyzing trace with hash 48976919, now seen corresponding path program 1 times [2024-09-12 19:31:49,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:49,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212587902] [2024-09-12 19:31:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:49,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:49,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323058755] [2024-09-12 19:31:49,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:49,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:49,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:49,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:49,728 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 19:31:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:49,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:31:49,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:31:49,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:31:50,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:50,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212587902] [2024-09-12 19:31:50,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:50,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323058755] [2024-09-12 19:31:50,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323058755] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:50,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:31:50,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-09-12 19:31:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495024474] [2024-09-12 19:31:50,151 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:31:50,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 19:31:50,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:50,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 19:31:50,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:31:50,153 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:31:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:50,337 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2024-09-12 19:31:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:31:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-12 19:31:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:50,339 INFO L225 Difference]: With dead ends: 90 [2024-09-12 19:31:50,339 INFO L226 Difference]: Without dead ends: 74 [2024-09-12 19:31:50,340 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:31:50,340 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 135 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:50,341 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 96 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:31:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-09-12 19:31:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2024-09-12 19:31:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 60 states have internal predecessors, (70), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:31:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2024-09-12 19:31:50,358 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 24 [2024-09-12 19:31:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:50,360 INFO L474 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2024-09-12 19:31:50,361 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:31:50,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:50,363 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2024-09-12 19:31:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-12 19:31:50,364 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:50,364 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:50,377 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-12 19:31:50,564 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:50,565 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:50,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1518284550, now seen corresponding path program 1 times [2024-09-12 19:31:50,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:50,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795302544] [2024-09-12 19:31:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:50,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:50,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320755067] [2024-09-12 19:31:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:50,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:50,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:50,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:50,591 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 19:31:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:50,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:31:50,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:50,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:31:50,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:50,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795302544] [2024-09-12 19:31:50,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:50,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320755067] [2024-09-12 19:31:50,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320755067] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:50,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:50,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 19:31:50,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124742699] [2024-09-12 19:31:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:50,740 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:31:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:31:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:31:50,741 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:31:50,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:50,900 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2024-09-12 19:31:50,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:31:50,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2024-09-12 19:31:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:50,901 INFO L225 Difference]: With dead ends: 75 [2024-09-12 19:31:50,901 INFO L226 Difference]: Without dead ends: 70 [2024-09-12 19:31:50,901 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:31:50,902 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 120 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:50,906 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 114 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:50,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-09-12 19:31:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-09-12 19:31:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.434782608695652) internal successors, (66), 59 states have internal predecessors, (66), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:31:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-09-12 19:31:50,923 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 25 [2024-09-12 19:31:50,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:50,923 INFO L474 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-09-12 19:31:50,923 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-09-12 19:31:50,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-09-12 19:31:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-09-12 19:31:50,924 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:50,924 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:50,940 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 19:31:51,124 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:51,125 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:51,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash -177819143, now seen corresponding path program 1 times [2024-09-12 19:31:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675111552] [2024-09-12 19:31:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:51,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,202 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,206 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,211 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:51,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:51,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675111552] [2024-09-12 19:31:51,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675111552] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:51,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:51,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:51,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067721179] [2024-09-12 19:31:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:51,221 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:51,222 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:51,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:51,416 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2024-09-12 19:31:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:51,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-09-12 19:31:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:51,418 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:31:51,419 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:31:51,419 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:51,420 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 21 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:51,420 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 114 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:31:51,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:31:51,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2024-09-12 19:31:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 72 states have internal predecessors, (87), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2024-09-12 19:31:51,443 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 26 [2024-09-12 19:31:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:51,443 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2024-09-12 19:31:51,443 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:51,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2024-09-12 19:31:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-09-12 19:31:51,444 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:51,445 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:51,445 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:31:51,445 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:51,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1217426072, now seen corresponding path program 1 times [2024-09-12 19:31:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287339398] [2024-09-12 19:31:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,539 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,544 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,548 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,555 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:51,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:51,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287339398] [2024-09-12 19:31:51,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287339398] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:51,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283130647] [2024-09-12 19:31:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:51,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:51,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:51,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:51,556 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:51,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:51,905 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2024-09-12 19:31:51,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:51,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-09-12 19:31:51,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:51,907 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:31:51,907 INFO L226 Difference]: Without dead ends: 95 [2024-09-12 19:31:51,907 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:51,907 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 20 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:51,908 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 117 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:31:51,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-09-12 19:31:51,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2024-09-12 19:31:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 72 states have internal predecessors, (85), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2024-09-12 19:31:51,920 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 27 [2024-09-12 19:31:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:51,921 INFO L474 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2024-09-12 19:31:51,921 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:51,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2024-09-12 19:31:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-12 19:31:51,922 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:51,922 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:51,922 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 19:31:51,922 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:51,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash -357093896, now seen corresponding path program 1 times [2024-09-12 19:31:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:51,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877533587] [2024-09-12 19:31:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:51,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144767728] [2024-09-12 19:31:51,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:51,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:51,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:51,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:51,949 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 19:31:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:51,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:31:51,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:52,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:31:52,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:52,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877533587] [2024-09-12 19:31:52,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:52,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144767728] [2024-09-12 19:31:52,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144767728] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:52,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:52,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:31:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204856216] [2024-09-12 19:31:52,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:52,035 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:31:52,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:31:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:31:52,035 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:52,112 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2024-09-12 19:31:52,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:31:52,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-09-12 19:31:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:52,113 INFO L225 Difference]: With dead ends: 90 [2024-09-12 19:31:52,113 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 19:31:52,113 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:31:52,114 INFO L434 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:52,114 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 131 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 19:31:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 19:31:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 75 states have internal predecessors, (88), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 104 transitions. [2024-09-12 19:31:52,131 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 104 transitions. Word has length 33 [2024-09-12 19:31:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:52,132 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 104 transitions. [2024-09-12 19:31:52,132 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-12 19:31:52,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 104 transitions. [2024-09-12 19:31:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-09-12 19:31:52,134 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:52,134 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:52,147 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-12 19:31:52,334 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 19:31:52,335 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:52,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1207715490, now seen corresponding path program 1 times [2024-09-12 19:31:52,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135574576] [2024-09-12 19:31:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:52,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,420 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:52,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:52,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135574576] [2024-09-12 19:31:52,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135574576] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:52,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:52,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:52,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240609323] [2024-09-12 19:31:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:52,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:52,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:52,452 INFO L87 Difference]: Start difference. First operand 88 states and 104 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:52,544 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2024-09-12 19:31:52,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:52,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 37 [2024-09-12 19:31:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:52,546 INFO L225 Difference]: With dead ends: 89 [2024-09-12 19:31:52,546 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 19:31:52,546 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 19:31:52,546 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 52 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:52,546 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 92 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:52,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 19:31:52,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 19:31:52,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 62 states have (on average 1.403225806451613) internal successors, (87), 75 states have internal predecessors, (87), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:52,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2024-09-12 19:31:52,567 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 37 [2024-09-12 19:31:52,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:52,567 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2024-09-12 19:31:52,567 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,568 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2024-09-12 19:31:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-09-12 19:31:52,569 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:52,570 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:52,570 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:31:52,570 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:52,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1215525392, now seen corresponding path program 1 times [2024-09-12 19:31:52,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:52,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868432271] [2024-09-12 19:31:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:52,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:52,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868432271] [2024-09-12 19:31:52,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868432271] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:52,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:52,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851912466] [2024-09-12 19:31:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:52,656 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:52,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:52,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:52,656 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:52,717 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2024-09-12 19:31:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 38 [2024-09-12 19:31:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:52,718 INFO L225 Difference]: With dead ends: 89 [2024-09-12 19:31:52,718 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 19:31:52,718 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 19:31:52,719 INFO L434 NwaCegarLoop]: 43 mSDtfsCounter, 50 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:52,719 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 93 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:31:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 19:31:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 19:31:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 75 states have internal predecessors, (86), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 102 transitions. [2024-09-12 19:31:52,737 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 102 transitions. Word has length 38 [2024-09-12 19:31:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:52,738 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 102 transitions. [2024-09-12 19:31:52,738 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2024-09-12 19:31:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-09-12 19:31:52,740 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:52,741 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:52,741 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 19:31:52,741 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:52,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 120779324, now seen corresponding path program 1 times [2024-09-12 19:31:52,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:52,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543361112] [2024-09-12 19:31:52,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:52,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,799 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,802 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,804 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,810 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:52,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:52,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543361112] [2024-09-12 19:31:52,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543361112] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:52,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:52,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:52,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508254849] [2024-09-12 19:31:52,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:52,816 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:52,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:52,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:52,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:52,817 INFO L87 Difference]: Start difference. First operand 88 states and 102 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:52,866 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2024-09-12 19:31:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 40 [2024-09-12 19:31:52,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:52,867 INFO L225 Difference]: With dead ends: 88 [2024-09-12 19:31:52,867 INFO L226 Difference]: Without dead ends: 86 [2024-09-12 19:31:52,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 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 19:31:52,868 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 40 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:52,868 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 68 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:31:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-09-12 19:31:52,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2024-09-12 19:31:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 72 states have internal predecessors, (82), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:52,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2024-09-12 19:31:52,883 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 40 [2024-09-12 19:31:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:52,884 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2024-09-12 19:31:52,884 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2024-09-12 19:31:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-09-12 19:31:52,885 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:52,885 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:52,885 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:31:52,885 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:52,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -847597015, now seen corresponding path program 1 times [2024-09-12 19:31:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:52,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286067260] [2024-09-12 19:31:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:52,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,924 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,932 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:52,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:52,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286067260] [2024-09-12 19:31:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286067260] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:52,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:52,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:52,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808769630] [2024-09-12 19:31:52,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:52,935 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:52,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:52,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:52,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:52,936 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:52,981 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2024-09-12 19:31:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2024-09-12 19:31:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:52,982 INFO L225 Difference]: With dead ends: 89 [2024-09-12 19:31:52,982 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 19:31:52,983 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 19:31:52,983 INFO L434 NwaCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:52,983 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:31:52,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 19:31:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-09-12 19:31:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 74 states have internal predecessors, (84), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:52,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2024-09-12 19:31:52,994 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 41 [2024-09-12 19:31:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:52,995 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2024-09-12 19:31:52,995 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:52,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2024-09-12 19:31:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:31:52,995 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:52,996 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:52,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:31:52,996 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:52,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:52,996 INFO L85 PathProgramCache]: Analyzing trace with hash -505703596, now seen corresponding path program 1 times [2024-09-12 19:31:52,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:52,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858141910] [2024-09-12 19:31:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:52,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,025 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,027 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,031 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,033 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:53,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:53,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858141910] [2024-09-12 19:31:53,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858141910] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:53,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:53,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:31:53,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946178648] [2024-09-12 19:31:53,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:53,040 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:31:53,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:53,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:31:53,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:31:53,040 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:53,122 INFO L93 Difference]: Finished difference Result 89 states and 102 transitions. [2024-09-12 19:31:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:31:53,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 42 [2024-09-12 19:31:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:53,123 INFO L225 Difference]: With dead ends: 89 [2024-09-12 19:31:53,123 INFO L226 Difference]: Without dead ends: 88 [2024-09-12 19:31:53,124 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 19:31:53,124 INFO L434 NwaCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:53,124 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 89 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:53,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-09-12 19:31:53,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-09-12 19:31:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 64 states have (on average 1.328125) internal successors, (85), 75 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2024-09-12 19:31:53,135 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 42 [2024-09-12 19:31:53,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:53,135 INFO L474 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2024-09-12 19:31:53,135 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:53,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2024-09-12 19:31:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-09-12 19:31:53,137 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:53,137 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:53,137 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-12 19:31:53,137 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:53,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash 104815198, now seen corresponding path program 1 times [2024-09-12 19:31:53,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728757191] [2024-09-12 19:31:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:53,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495974500] [2024-09-12 19:31:53,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:53,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:53,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:53,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:53,158 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 19:31:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:53,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:31:53,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-12 19:31:53,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:31:58,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728757191] [2024-09-12 19:31:58,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:58,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495974500] [2024-09-12 19:31:58,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495974500] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:31:58,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:31:58,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-09-12 19:31:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980862782] [2024-09-12 19:31:58,318 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:31:58,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:31:58,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:58,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:31:58,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=98, Unknown=1, NotChecked=0, Total=132 [2024-09-12 19:31:58,319 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:58,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:58,454 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2024-09-12 19:31:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:31:58,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 42 [2024-09-12 19:31:58,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:58,455 INFO L225 Difference]: With dead ends: 105 [2024-09-12 19:31:58,455 INFO L226 Difference]: Without dead ends: 92 [2024-09-12 19:31:58,455 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=53, Invalid=128, Unknown=1, NotChecked=0, Total=182 [2024-09-12 19:31:58,456 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 112 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:58,456 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 103 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-09-12 19:31:58,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2024-09-12 19:31:58,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 77 states have internal predecessors, (85), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:58,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2024-09-12 19:31:58,476 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 42 [2024-09-12 19:31:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:58,476 INFO L474 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2024-09-12 19:31:58,477 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:58,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:58,477 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2024-09-12 19:31:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:31:58,477 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:58,478 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:58,490 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 19:31:58,678 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:58,678 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:58,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1503057803, now seen corresponding path program 1 times [2024-09-12 19:31:58,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:58,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048929627] [2024-09-12 19:31:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:31:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:31:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,721 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:31:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,723 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:31:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:31:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:31:58,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:58,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048929627] [2024-09-12 19:31:58,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048929627] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:58,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:58,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:31:58,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053251518] [2024-09-12 19:31:58,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:58,728 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:31:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:58,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:31:58,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:31:58,729 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:31:58,818 INFO L93 Difference]: Finished difference Result 96 states and 108 transitions. [2024-09-12 19:31:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:31:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 43 [2024-09-12 19:31:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:31:58,820 INFO L225 Difference]: With dead ends: 96 [2024-09-12 19:31:58,820 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:31:58,820 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:31:58,820 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 46 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:31:58,820 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 93 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:31:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:31:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 85. [2024-09-12 19:31:58,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 72 states have internal predecessors, (78), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:31:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2024-09-12 19:31:58,833 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2024-09-12 19:31:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:31:58,833 INFO L474 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2024-09-12 19:31:58,833 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-09-12 19:31:58,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2024-09-12 19:31:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-09-12 19:31:58,834 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:31:58,834 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:31:58,834 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-12 19:31:58,834 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:31:58,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:31:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1045696097, now seen corresponding path program 1 times [2024-09-12 19:31:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:31:58,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088218543] [2024-09-12 19:31:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:31:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:31:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36837731] [2024-09-12 19:31:58,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:31:58,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:31:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:31:58,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:31:58,846 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 19:31:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:31:58,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:31:58,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:31:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:31:59,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:31:59,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:31:59,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088218543] [2024-09-12 19:31:59,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:31:59,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36837731] [2024-09-12 19:31:59,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36837731] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:31:59,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:31:59,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-09-12 19:31:59,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704951574] [2024-09-12 19:31:59,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:31:59,101 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:31:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:31:59,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:31:59,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:31:59,102 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:32:00,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:00,173 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2024-09-12 19:32:00,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-12 19:32:00,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-09-12 19:32:00,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:00,174 INFO L225 Difference]: With dead ends: 91 [2024-09-12 19:32:00,174 INFO L226 Difference]: Without dead ends: 89 [2024-09-12 19:32:00,174 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:32:00,175 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 74 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:00,175 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 156 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:32:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-09-12 19:32:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2024-09-12 19:32:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 70 states have internal predecessors, (74), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-12 19:32:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2024-09-12 19:32:00,200 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 43 [2024-09-12 19:32:00,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:00,200 INFO L474 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2024-09-12 19:32:00,200 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:32:00,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:00,201 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2024-09-12 19:32:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 19:32:00,201 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:00,201 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:00,214 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 19:32:00,405 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 19:32:00,406 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:00,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:00,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1733923880, now seen corresponding path program 1 times [2024-09-12 19:32:00,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:00,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302492954] [2024-09-12 19:32:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:00,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:00,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629306595] [2024-09-12 19:32:00,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:00,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:00,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:00,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:32:00,429 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 19:32:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:00,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:32:00,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:00,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:09,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302492954] [2024-09-12 19:32:09,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629306595] [2024-09-12 19:32:09,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629306595] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:09,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:09,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-09-12 19:32:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037627822] [2024-09-12 19:32:09,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:09,117 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:32:09,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:32:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=181, Unknown=1, NotChecked=0, Total=240 [2024-09-12 19:32:09,118 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:32:13,380 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 [1] [2024-09-12 19:32:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:13,855 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2024-09-12 19:32:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:32:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 46 [2024-09-12 19:32:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:13,856 INFO L225 Difference]: With dead ends: 105 [2024-09-12 19:32:13,856 INFO L226 Difference]: Without dead ends: 94 [2024-09-12 19:32:13,856 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=187, Invalid=462, Unknown=1, NotChecked=0, Total=650 [2024-09-12 19:32:13,857 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 70 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:13,857 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 183 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 313 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-09-12 19:32:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-09-12 19:32:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-09-12 19:32:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 80 states have internal predecessors, (88), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:32:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2024-09-12 19:32:13,878 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 46 [2024-09-12 19:32:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:13,878 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2024-09-12 19:32:13,878 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 16 states have internal predecessors, (55), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:32:13,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2024-09-12 19:32:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-09-12 19:32:13,879 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:13,879 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 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 19:32:13,898 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 19:32:14,080 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 19:32:14,080 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:14,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:14,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2082934629, now seen corresponding path program 1 times [2024-09-12 19:32:14,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864192098] [2024-09-12 19:32:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:14,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404574728] [2024-09-12 19:32:14,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:14,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:14,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:14,098 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:32:14,099 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 19:32:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:14,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:32:14,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:32:14,462 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:15,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:32:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864192098] [2024-09-12 19:32:15,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404574728] [2024-09-12 19:32:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404574728] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:15,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-09-12 19:32:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279168043] [2024-09-12 19:32:15,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:15,703 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:32:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:32:15,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:32:15,704 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:23,407 INFO L93 Difference]: Finished difference Result 109 states and 126 transitions. [2024-09-12 19:32:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-12 19:32:23,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 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 47 [2024-09-12 19:32:23,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:23,407 INFO L225 Difference]: With dead ends: 109 [2024-09-12 19:32:23,408 INFO L226 Difference]: Without dead ends: 107 [2024-09-12 19:32:23,408 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:32:23,408 INFO L434 NwaCegarLoop]: 36 mSDtfsCounter, 70 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:23,408 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 197 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 19:32:23,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-09-12 19:32:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2024-09-12 19:32:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 82 states have internal predecessors, (90), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:32:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2024-09-12 19:32:23,431 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 47 [2024-09-12 19:32:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:23,431 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2024-09-12 19:32:23,431 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:23,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2024-09-12 19:32:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-09-12 19:32:23,432 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:23,432 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:23,448 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 19:32:23,632 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-09-12 19:32:23,632 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:23,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:23,633 INFO L85 PathProgramCache]: Analyzing trace with hash 146464122, now seen corresponding path program 1 times [2024-09-12 19:32:23,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:23,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785154538] [2024-09-12 19:32:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,725 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,727 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:32:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,746 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:32:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,749 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:32:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,751 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:32:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:23,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:23,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785154538] [2024-09-12 19:32:23,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785154538] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:23,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362663441] [2024-09-12 19:32:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:23,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:23,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:23,756 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:32:23,757 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 19:32:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:23,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:32:23,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:23,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:23,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362663441] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:23,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:32:23,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-09-12 19:32:23,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806954481] [2024-09-12 19:32:23,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:23,963 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:32:23,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:23,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:32:23,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:32:23,964 INFO L87 Difference]: Start difference. First operand 96 states and 108 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:32:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:24,167 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2024-09-12 19:32:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:32:24,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 48 [2024-09-12 19:32:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:24,169 INFO L225 Difference]: With dead ends: 98 [2024-09-12 19:32:24,169 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 19:32:24,169 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:32:24,169 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 66 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:24,169 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 169 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:24,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 19:32:24,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-09-12 19:32:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 76 states have (on average 1.144736842105263) internal successors, (87), 80 states have internal predecessors, (87), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:32:24,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2024-09-12 19:32:24,193 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 48 [2024-09-12 19:32:24,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:24,193 INFO L474 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2024-09-12 19:32:24,193 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-09-12 19:32:24,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,193 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2024-09-12 19:32:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-09-12 19:32:24,194 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:24,194 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:24,205 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:32:24,398 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:24,399 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:24,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 245420551, now seen corresponding path program 1 times [2024-09-12 19:32:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:24,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090376563] [2024-09-12 19:32:24,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:24,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676177734] [2024-09-12 19:32:24,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:24,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:24,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:24,410 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:32:24,411 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 19:32:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:24,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:32:24,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:24,713 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:24,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:28,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090376563] [2024-09-12 19:32:28,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:28,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676177734] [2024-09-12 19:32:28,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676177734] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:28,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:32:28,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-09-12 19:32:28,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644156773] [2024-09-12 19:32:28,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:28,260 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-09-12 19:32:28,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-09-12 19:32:28,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:32:28,261 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:32:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:28,663 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2024-09-12 19:32:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:32:28,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-09-12 19:32:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:28,664 INFO L225 Difference]: With dead ends: 114 [2024-09-12 19:32:28,664 INFO L226 Difference]: Without dead ends: 112 [2024-09-12 19:32:28,664 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-09-12 19:32:28,665 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 99 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:28,665 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 202 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:32:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-09-12 19:32:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2024-09-12 19:32:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.146067415730337) internal successors, (102), 93 states have internal predecessors, (102), 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 19:32:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2024-09-12 19:32:28,691 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 49 [2024-09-12 19:32:28,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:28,691 INFO L474 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2024-09-12 19:32:28,692 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-09-12 19:32:28,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2024-09-12 19:32:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-12 19:32:28,692 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:28,692 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:28,708 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:32:28,893 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 19:32:28,893 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:28,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:28,893 INFO L85 PathProgramCache]: Analyzing trace with hash -555202671, now seen corresponding path program 1 times [2024-09-12 19:32:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:28,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102215278] [2024-09-12 19:32:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:28,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1529136311] [2024-09-12 19:32:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:28,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:28,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:28,903 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:32:28,904 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 19:32:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:28,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:32:28,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:29,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-12 19:32:29,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102215278] [2024-09-12 19:32:29,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:29,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529136311] [2024-09-12 19:32:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529136311] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:29,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2024-09-12 19:32:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589678134] [2024-09-12 19:32:29,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:29,727 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:32:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:32:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:32:29,728 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:32:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:30,512 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2024-09-12 19:32:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-09-12 19:32:30,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 51 [2024-09-12 19:32:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:30,514 INFO L225 Difference]: With dead ends: 148 [2024-09-12 19:32:30,514 INFO L226 Difference]: Without dead ends: 146 [2024-09-12 19:32:30,514 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:32:30,515 INFO L434 NwaCegarLoop]: 23 mSDtfsCounter, 56 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:30,515 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 201 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:32:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-09-12 19:32:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 138. [2024-09-12 19:32:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.1206896551724137) internal successors, (130), 121 states have internal predecessors, (130), 13 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:32:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 154 transitions. [2024-09-12 19:32:30,558 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 154 transitions. Word has length 51 [2024-09-12 19:32:30,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:30,558 INFO L474 AbstractCegarLoop]: Abstraction has 138 states and 154 transitions. [2024-09-12 19:32:30,558 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 14 states have internal predecessors, (59), 5 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-09-12 19:32:30,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:30,559 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 154 transitions. [2024-09-12 19:32:30,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:32:30,559 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:30,559 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:30,571 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 19:32:30,759 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:30,760 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:30,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:30,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1541685079, now seen corresponding path program 1 times [2024-09-12 19:32:30,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:30,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230815028] [2024-09-12 19:32:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:30,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:30,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574989208] [2024-09-12 19:32:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:30,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:30,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:30,773 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 19:32:30,774 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 19:32:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:30,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-12 19:32:30,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:32:31,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:39,109 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:32:39,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230815028] [2024-09-12 19:32:39,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574989208] [2024-09-12 19:32:39,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574989208] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:39,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:39,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 20 [2024-09-12 19:32:39,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921642158] [2024-09-12 19:32:39,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:39,110 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 19:32:39,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 19:32:39,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-09-12 19:32:39,110 INFO L87 Difference]: Start difference. First operand 138 states and 154 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:32:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:49,705 INFO L93 Difference]: Finished difference Result 163 states and 180 transitions. [2024-09-12 19:32:49,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-12 19:32:49,706 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55 [2024-09-12 19:32:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:49,707 INFO L225 Difference]: With dead ends: 163 [2024-09-12 19:32:49,707 INFO L226 Difference]: Without dead ends: 161 [2024-09-12 19:32:49,708 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:32:49,708 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:49,708 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 192 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-09-12 19:32:49,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-09-12 19:32:49,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 154. [2024-09-12 19:32:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 130 states have (on average 1.1153846153846154) internal successors, (145), 136 states have internal predecessors, (145), 14 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:32:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 171 transitions. [2024-09-12 19:32:49,758 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 171 transitions. Word has length 55 [2024-09-12 19:32:49,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:49,758 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 171 transitions. [2024-09-12 19:32:49,758 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 19 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-09-12 19:32:49,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:49,758 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 171 transitions. [2024-09-12 19:32:49,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:32:49,759 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:49,759 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:32:49,772 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 19:32:49,959 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:49,959 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:49,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1748536311, now seen corresponding path program 1 times [2024-09-12 19:32:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:49,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360215417] [2024-09-12 19:32:49,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,016 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:32:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:32:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:32:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,021 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:32:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:32:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:32:50,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:50,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360215417] [2024-09-12 19:32:50,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360215417] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:32:50,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:32:50,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:32:50,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848579607] [2024-09-12 19:32:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:32:50,027 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:32:50,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:50,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:32:50,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:32:50,028 INFO L87 Difference]: Start difference. First operand 154 states and 171 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:50,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:50,111 INFO L93 Difference]: Finished difference Result 157 states and 174 transitions. [2024-09-12 19:32:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:32:50,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 56 [2024-09-12 19:32:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:50,112 INFO L225 Difference]: With dead ends: 157 [2024-09-12 19:32:50,112 INFO L226 Difference]: Without dead ends: 156 [2024-09-12 19:32:50,112 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 19:32:50,113 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 4 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:50,113 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 125 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:32:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-09-12 19:32:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2024-09-12 19:32:50,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 130 states have (on average 1.1153846153846154) internal successors, (145), 136 states have internal predecessors, (145), 14 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:32:50,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 171 transitions. [2024-09-12 19:32:50,163 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 171 transitions. Word has length 56 [2024-09-12 19:32:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:50,163 INFO L474 AbstractCegarLoop]: Abstraction has 154 states and 171 transitions. [2024-09-12 19:32:50,163 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-09-12 19:32:50,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 171 transitions. [2024-09-12 19:32:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-09-12 19:32:50,164 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:50,165 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:32:50,165 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-09-12 19:32:50,165 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:50,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1086010843, now seen corresponding path program 1 times [2024-09-12 19:32:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:50,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252851431] [2024-09-12 19:32:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:50,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,207 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:32:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,209 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:32:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:32:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,212 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:32:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,213 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:32:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,215 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:32:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:32:50,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:50,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252851431] [2024-09-12 19:32:50,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252851431] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:32:50,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085860451] [2024-09-12 19:32:50,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:50,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:50,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:50,220 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 19:32:50,220 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 19:32:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:32:50,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:32:50,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-12 19:32:50,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085860451] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:50,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:32:50,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-09-12 19:32:50,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366801905] [2024-09-12 19:32:50,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:50,342 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:32:50,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:50,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:32:50,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:32:50,342 INFO L87 Difference]: Start difference. First operand 154 states and 171 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 7 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-09-12 19:32:50,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:50,513 INFO L93 Difference]: Finished difference Result 250 states and 288 transitions. [2024-09-12 19:32:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:32:50,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 7 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 60 [2024-09-12 19:32:50,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:50,516 INFO L225 Difference]: With dead ends: 250 [2024-09-12 19:32:50,516 INFO L226 Difference]: Without dead ends: 249 [2024-09-12 19:32:50,517 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:32:50,517 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 242 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:50,517 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 125 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:32:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-09-12 19:32:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 230. [2024-09-12 19:32:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 202 states have (on average 1.1287128712871286) internal successors, (228), 206 states have internal predecessors, (228), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-09-12 19:32:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 262 transitions. [2024-09-12 19:32:50,608 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 262 transitions. Word has length 60 [2024-09-12 19:32:50,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:50,608 INFO L474 AbstractCegarLoop]: Abstraction has 230 states and 262 transitions. [2024-09-12 19:32:50,608 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 7 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-09-12 19:32:50,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 262 transitions. [2024-09-12 19:32:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-09-12 19:32:50,609 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:50,609 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 19:32:50,621 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 19:32:50,809 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 19:32:50,810 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:50,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:50,810 INFO L85 PathProgramCache]: Analyzing trace with hash 318547051, now seen corresponding path program 1 times [2024-09-12 19:32:50,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:50,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381011953] [2024-09-12 19:32:50,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:50,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:50,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797462967] [2024-09-12 19:32:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:50,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:50,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:50,822 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 19:32:50,822 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 19:32:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:50,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-12 19:32:50,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:32:50,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:32:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:32:50,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:32:50,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381011953] [2024-09-12 19:32:50,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:32:50,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797462967] [2024-09-12 19:32:50,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797462967] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:32:50,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:32:50,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2024-09-12 19:32:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135564040] [2024-09-12 19:32:50,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:32:50,945 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:32:50,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:32:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:32:50,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:32:50,946 INFO L87 Difference]: Start difference. First operand 230 states and 262 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:32:53,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-09-12 19:32:53,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:32:53,275 INFO L93 Difference]: Finished difference Result 237 states and 267 transitions. [2024-09-12 19:32:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:32:53,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2024-09-12 19:32:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:32:53,278 INFO L225 Difference]: With dead ends: 237 [2024-09-12 19:32:53,278 INFO L226 Difference]: Without dead ends: 228 [2024-09-12 19:32:53,278 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-09-12 19:32:53,279 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 18 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:32:53,279 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 204 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2024-09-12 19:32:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-09-12 19:32:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 213. [2024-09-12 19:32:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 187 states have (on average 1.1122994652406417) internal successors, (208), 191 states have internal predecessors, (208), 16 states have call successors, (16), 7 states have call predecessors, (16), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-09-12 19:32:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2024-09-12 19:32:53,366 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 63 [2024-09-12 19:32:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:32:53,366 INFO L474 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2024-09-12 19:32:53,366 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2024-09-12 19:32:53,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2024-09-12 19:32:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:32:53,366 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:32:53,367 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:32:53,378 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 19:32:53,567 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 19:32:53,567 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:32:53,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:32:53,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1378945184, now seen corresponding path program 1 times [2024-09-12 19:32:53,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:32:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794569322] [2024-09-12 19:32:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:53,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:32:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:32:53,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301615684] [2024-09-12 19:32:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:32:53,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:32:53,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:32:53,586 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 19:32:53,588 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 19:32:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:32:53,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-09-12 19:32:53,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:32:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:32:54,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:33:22,532 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:33:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-09-12 19:33:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:33:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794569322] [2024-09-12 19:33:42,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:33:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301615684] [2024-09-12 19:33:42,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301615684] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:33:42,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:33:42,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-09-12 19:33:42,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241266394] [2024-09-12 19:33:42,592 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:33:42,593 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-09-12 19:33:42,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:33:42,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-09-12 19:33:42,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-09-12 19:33:42,593 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 19:33:56,814 WARN L293 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 77 DAG size of output: 63 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:34:13,726 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:34:16,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:34:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:34:28,144 INFO L93 Difference]: Finished difference Result 256 states and 288 transitions. [2024-09-12 19:34:28,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 19:34:28,144 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 67 [2024-09-12 19:34:28,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:34:28,145 INFO L225 Difference]: With dead ends: 256 [2024-09-12 19:34:28,146 INFO L226 Difference]: Without dead ends: 254 [2024-09-12 19:34:28,146 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 57.2s TimeCoverageRelationStatistics Valid=372, Invalid=1268, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 19:34:28,146 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 50 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:34:28,146 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 367 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2024-09-12 19:34:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-09-12 19:34:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2024-09-12 19:34:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 222 states have (on average 1.0990990990990992) internal successors, (244), 226 states have internal predecessors, (244), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:34:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2024-09-12 19:34:28,280 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 67 [2024-09-12 19:34:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:34:28,281 INFO L474 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2024-09-12 19:34:28,281 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-12 19:34:28,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2024-09-12 19:34:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-09-12 19:34:28,281 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:34:28,281 INFO L216 NwaCegarLoop]: trace histogram [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] [2024-09-12 19:34:28,296 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 19:34:28,482 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 19:34:28,482 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:34:28,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:34:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1292212640, now seen corresponding path program 2 times [2024-09-12 19:34:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:34:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461293133] [2024-09-12 19:34:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:34:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:34:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:34:28,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373221832] [2024-09-12 19:34:28,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:34:28,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:34:28,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:34:28,500 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 19:34:28,501 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 19:34:28,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:34:28,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:34:28,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-09-12 19:34:28,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:34:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:34:29,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:34:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-12 19:34:34,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:34:34,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461293133] [2024-09-12 19:34:34,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:34:34,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373221832] [2024-09-12 19:34:34,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373221832] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:34:34,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:34:34,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2024-09-12 19:34:34,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457763054] [2024-09-12 19:34:34,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:34:34,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-09-12 19:34:34,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:34:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-09-12 19:34:34,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2024-09-12 19:34:34,473 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 28 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:34:46,320 WARN L293 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 94 DAG size of output: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-12 19:35:03,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-12 19:35:14,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:14,247 INFO L93 Difference]: Finished difference Result 362 states and 405 transitions. [2024-09-12 19:35:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:35:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 67 [2024-09-12 19:35:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:14,249 INFO L225 Difference]: With dead ends: 362 [2024-09-12 19:35:14,250 INFO L226 Difference]: Without dead ends: 250 [2024-09-12 19:35:14,252 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 38.7s TimeCoverageRelationStatistics Valid=650, Invalid=2001, Unknown=1, NotChecked=0, Total=2652 [2024-09-12 19:35:14,252 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 283 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:14,253 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 247 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-09-12 19:35:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-09-12 19:35:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-09-12 19:35:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 222 states have (on average 1.0810810810810811) internal successors, (240), 226 states have internal predecessors, (240), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:35:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 275 transitions. [2024-09-12 19:35:14,403 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 275 transitions. Word has length 67 [2024-09-12 19:35:14,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:14,403 INFO L474 AbstractCegarLoop]: Abstraction has 250 states and 275 transitions. [2024-09-12 19:35:14,403 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 9 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-09-12 19:35:14,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:14,403 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 275 transitions. [2024-09-12 19:35:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-09-12 19:35:14,404 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:14,404 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:14,416 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 19:35:14,604 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 19:35:14,604 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:14,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash 415271730, now seen corresponding path program 1 times [2024-09-12 19:35:14,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:14,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172646603] [2024-09-12 19:35:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:35:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,720 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-09-12 19:35:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:35:14,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:14,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172646603] [2024-09-12 19:35:14,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172646603] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:14,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896440125] [2024-09-12 19:35:14,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:14,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:14,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:14,724 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 19:35:14,725 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 19:35:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:14,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:35:14,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:35:14,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:35:15,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896440125] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:15,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:15,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-09-12 19:35:15,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031237068] [2024-09-12 19:35:15,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:15,002 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 19:35:15,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:15,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 19:35:15,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:35:15,003 INFO L87 Difference]: Start difference. First operand 250 states and 275 transitions. Second operand has 19 states, 18 states have (on average 8.277777777777779) internal successors, (149), 19 states have internal predecessors, (149), 12 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-09-12 19:35:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:15,463 INFO L93 Difference]: Finished difference Result 373 states and 418 transitions. [2024-09-12 19:35:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:35:15,464 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 8.277777777777779) internal successors, (149), 19 states have internal predecessors, (149), 12 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) Word has length 82 [2024-09-12 19:35:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:15,466 INFO L225 Difference]: With dead ends: 373 [2024-09-12 19:35:15,466 INFO L226 Difference]: Without dead ends: 372 [2024-09-12 19:35:15,466 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=565, Unknown=0, NotChecked=0, Total=812 [2024-09-12 19:35:15,467 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 359 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:15,467 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 332 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:15,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-09-12 19:35:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 342. [2024-09-12 19:35:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 309 states have (on average 1.0841423948220066) internal successors, (335), 312 states have internal predecessors, (335), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-09-12 19:35:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 380 transitions. [2024-09-12 19:35:15,678 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 380 transitions. Word has length 82 [2024-09-12 19:35:15,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:15,678 INFO L474 AbstractCegarLoop]: Abstraction has 342 states and 380 transitions. [2024-09-12 19:35:15,680 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 8.277777777777779) internal successors, (149), 19 states have internal predecessors, (149), 12 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-09-12 19:35:15,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 380 transitions. [2024-09-12 19:35:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-09-12 19:35:15,681 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:15,682 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:15,694 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 19:35:15,885 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 19:35:15,886 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:15,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1444966909, now seen corresponding path program 2 times [2024-09-12 19:35:15,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:15,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803419846] [2024-09-12 19:35:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:15,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,218 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,220 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,239 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,250 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,252 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:35:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:35:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 48 proven. 30 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:35:16,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803419846] [2024-09-12 19:35:16,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803419846] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:16,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072683877] [2024-09-12 19:35:16,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:35:16,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:16,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:16,261 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 19:35:16,263 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 19:35:16,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:35:16,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:35:16,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-09-12 19:35:16,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:35:16,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 75 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-12 19:35:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072683877] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:17,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 23 [2024-09-12 19:35:17,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354573330] [2024-09-12 19:35:17,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:17,316 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-12 19:35:17,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-12 19:35:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:35:17,317 INFO L87 Difference]: Start difference. First operand 342 states and 380 transitions. Second operand has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 19 states have internal predecessors, (127), 13 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) [2024-09-12 19:35:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:17,668 INFO L93 Difference]: Finished difference Result 380 states and 421 transitions. [2024-09-12 19:35:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:35:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 19 states have internal predecessors, (127), 13 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) Word has length 87 [2024-09-12 19:35:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:17,670 INFO L225 Difference]: With dead ends: 380 [2024-09-12 19:35:17,670 INFO L226 Difference]: Without dead ends: 172 [2024-09-12 19:35:17,671 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 174 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=251, Invalid=741, Unknown=0, NotChecked=0, Total=992 [2024-09-12 19:35:17,671 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 170 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:17,672 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 266 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:35:17,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-09-12 19:35:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 156. [2024-09-12 19:35:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 136 states have (on average 1.0294117647058822) internal successors, (140), 138 states have internal predecessors, (140), 13 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-09-12 19:35:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 165 transitions. [2024-09-12 19:35:17,785 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 165 transitions. Word has length 87 [2024-09-12 19:35:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:17,786 INFO L474 AbstractCegarLoop]: Abstraction has 156 states and 165 transitions. [2024-09-12 19:35:17,786 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 19 states have internal predecessors, (127), 13 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 13 states have call predecessors, (16), 12 states have call successors, (16) [2024-09-12 19:35:17,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 165 transitions. [2024-09-12 19:35:17,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-09-12 19:35:17,786 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:17,786 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:17,793 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:35:17,987 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 19:35:17,987 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:17,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash -911920156, now seen corresponding path program 2 times [2024-09-12 19:35:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323105894] [2024-09-12 19:35:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,083 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,085 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:35:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,089 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:35:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 19:35:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,092 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:35:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 19:35:18,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323105894] [2024-09-12 19:35:18,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323105894] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:18,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132059187] [2024-09-12 19:35:18,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:35:18,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:18,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:18,096 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 19:35:18,097 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 19:35:18,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:35:18,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:35:18,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:35:18,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:18,226 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 19:35:18,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-12 19:35:18,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132059187] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:18,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:18,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-09-12 19:35:18,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578263909] [2024-09-12 19:35:18,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:18,377 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:35:18,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:18,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:35:18,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:35:18,378 INFO L87 Difference]: Start difference. First operand 156 states and 165 transitions. Second operand has 14 states, 13 states have (on average 12.538461538461538) internal successors, (163), 14 states have internal predecessors, (163), 13 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-09-12 19:35:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:18,754 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2024-09-12 19:35:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:35:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.538461538461538) internal successors, (163), 14 states have internal predecessors, (163), 13 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) Word has length 122 [2024-09-12 19:35:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:18,756 INFO L225 Difference]: With dead ends: 251 [2024-09-12 19:35:18,756 INFO L226 Difference]: Without dead ends: 250 [2024-09-12 19:35:18,756 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:35:18,756 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 222 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:18,756 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 177 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:35:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-09-12 19:35:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-09-12 19:35:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 225 states have (on average 1.04) internal successors, (234), 227 states have internal predecessors, (234), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-09-12 19:35:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 269 transitions. [2024-09-12 19:35:18,955 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 269 transitions. Word has length 122 [2024-09-12 19:35:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:18,955 INFO L474 AbstractCegarLoop]: Abstraction has 250 states and 269 transitions. [2024-09-12 19:35:18,955 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.538461538461538) internal successors, (163), 14 states have internal predecessors, (163), 13 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2024-09-12 19:35:18,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 269 transitions. [2024-09-12 19:35:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-09-12 19:35:18,956 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:18,956 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:18,969 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 19:35:19,156 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 19:35:19,156 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:19,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:19,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1284039551, now seen corresponding path program 1 times [2024-09-12 19:35:19,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:19,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621926642] [2024-09-12 19:35:19,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:19,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,358 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,362 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,365 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,367 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:35:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,369 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:35:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 19:35:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,372 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:35:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,374 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:35:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:35:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621926642] [2024-09-12 19:35:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621926642] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:19,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839910582] [2024-09-12 19:35:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:19,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:19,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:19,379 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 19:35:19,379 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 19:35:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:19,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-12 19:35:19,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:19,716 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:35:19,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:35:19,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839910582] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:19,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:19,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-09-12 19:35:19,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798064981] [2024-09-12 19:35:19,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:19,955 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-12 19:35:19,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:19,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-12 19:35:19,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2024-09-12 19:35:19,956 INFO L87 Difference]: Start difference. First operand 250 states and 269 transitions. Second operand has 31 states, 30 states have (on average 9.266666666666667) internal successors, (278), 31 states have internal predecessors, (278), 21 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2024-09-12 19:35:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:20,737 INFO L93 Difference]: Finished difference Result 383 states and 413 transitions. [2024-09-12 19:35:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-09-12 19:35:20,737 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 9.266666666666667) internal successors, (278), 31 states have internal predecessors, (278), 21 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) Word has length 140 [2024-09-12 19:35:20,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:20,738 INFO L225 Difference]: With dead ends: 383 [2024-09-12 19:35:20,739 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 19:35:20,739 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=663, Invalid=1593, Unknown=0, NotChecked=0, Total=2256 [2024-09-12 19:35:20,739 INFO L434 NwaCegarLoop]: 29 mSDtfsCounter, 304 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:20,739 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 389 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:35:20,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 19:35:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 380. [2024-09-12 19:35:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 348 states have (on average 1.0172413793103448) internal successors, (354), 349 states have internal predecessors, (354), 25 states have call successors, (25), 6 states have call predecessors, (25), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-09-12 19:35:21,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 403 transitions. [2024-09-12 19:35:21,018 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 403 transitions. Word has length 140 [2024-09-12 19:35:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:21,019 INFO L474 AbstractCegarLoop]: Abstraction has 380 states and 403 transitions. [2024-09-12 19:35:21,019 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 9.266666666666667) internal successors, (278), 31 states have internal predecessors, (278), 21 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2024-09-12 19:35:21,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 403 transitions. [2024-09-12 19:35:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-09-12 19:35:21,020 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:21,020 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:21,033 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 19:35:21,221 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 19:35:21,221 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:21,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1761467778, now seen corresponding path program 2 times [2024-09-12 19:35:21,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560493478] [2024-09-12 19:35:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:21,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,632 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,636 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,637 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-09-12 19:35:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-09-12 19:35:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-09-12 19:35:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,642 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-09-12 19:35:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-09-12 19:35:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,645 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:35:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-09-12 19:35:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-09-12 19:35:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 19:35:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560493478] [2024-09-12 19:35:21,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560493478] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160859350] [2024-09-12 19:35:21,651 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:35:21,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:21,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:21,652 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 19:35:21,653 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 19:35:21,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:35:21,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:35:21,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-09-12 19:35:21,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:35:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 19:35:22,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:35:22,886 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-09-12 19:35:22,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160859350] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:35:22,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:35:22,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2024-09-12 19:35:22,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329500843] [2024-09-12 19:35:22,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:35:22,887 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-12 19:35:22,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:35:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-12 19:35:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=634, Invalid=2018, Unknown=0, NotChecked=0, Total=2652 [2024-09-12 19:35:22,889 INFO L87 Difference]: Start difference. First operand 380 states and 403 transitions. Second operand has 52 states, 51 states have (on average 8.686274509803921) internal successors, (443), 52 states have internal predecessors, (443), 30 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2024-09-12 19:35:24,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:35:24,558 INFO L93 Difference]: Finished difference Result 631 states and 680 transitions. [2024-09-12 19:35:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-09-12 19:35:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 8.686274509803921) internal successors, (443), 52 states have internal predecessors, (443), 30 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) Word has length 210 [2024-09-12 19:35:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:35:24,561 INFO L225 Difference]: With dead ends: 631 [2024-09-12 19:35:24,561 INFO L226 Difference]: Without dead ends: 630 [2024-09-12 19:35:24,562 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1660 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1830, Invalid=4976, Unknown=0, NotChecked=0, Total=6806 [2024-09-12 19:35:24,563 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 950 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:35:24,563 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 701 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:35:24,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-09-12 19:35:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 500. [2024-09-12 19:35:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 461 states have (on average 1.0195227765726682) internal successors, (470), 463 states have internal predecessors, (470), 32 states have call successors, (32), 6 states have call predecessors, (32), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 19:35:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 533 transitions. [2024-09-12 19:35:24,997 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 533 transitions. Word has length 210 [2024-09-12 19:35:24,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:35:24,997 INFO L474 AbstractCegarLoop]: Abstraction has 500 states and 533 transitions. [2024-09-12 19:35:24,997 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 8.686274509803921) internal successors, (443), 52 states have internal predecessors, (443), 30 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (34), 30 states have call predecessors, (34), 30 states have call successors, (34) [2024-09-12 19:35:24,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 533 transitions. [2024-09-12 19:35:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-09-12 19:35:24,999 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:35:25,000 INFO L216 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:35:25,016 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-09-12 19:35:25,200 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 19:35:25,200 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-09-12 19:35:25,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:35:25,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1218117718, now seen corresponding path program 3 times [2024-09-12 19:35:25,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:35:25,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845807732] [2024-09-12 19:35:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:35:25,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:35:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:35:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-09-12 19:35:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-09-12 19:35:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,469 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-09-12 19:35:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,471 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-09-12 19:35:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,473 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-09-12 19:35:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,474 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-09-12 19:35:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-09-12 19:35:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,477 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:35:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,478 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-09-12 19:35:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-09-12 19:35:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-09-12 19:35:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,484 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-09-12 19:35:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,486 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-09-12 19:35:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-09-12 19:35:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:35:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 0 proven. 894 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-09-12 19:35:25,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:35:25,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845807732] [2024-09-12 19:35:25,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845807732] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:35:25,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578948116] [2024-09-12 19:35:25,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:35:25,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:35:25,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:35:25,494 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 19:35:25,495 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 19:35:25,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-12 19:35:25,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:35:25,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-09-12 19:35:25,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:36:21,553 WARN L293 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 27 DAG size of output: 22 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne)